(1’2) lNTERNA’E‘IflNAL APPLICA'E‘IUN E’UHLISHEE) UNDER THE PA'l‘ENT COOPERATION TREATY (PCT)
`
`(19) World Inteiieetnal Property
`Organization
`international Bureau
`
`A:
`1
`it,
`11
`(43) International Publication Date
`14 November 21113 (14.11.2913) WEPQI PCT
`
`(10) Tintemationai ,Pnbiication Number
`
`’Wfl 2913/1681}? 1 A1
`
`International Patent Classification:
`A47]. 9/20 (ZOE-6,01)
`
`International Appiicatien Number:
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`PCT/[8201 3/953605
`
`International Filing Date:
`
`Filing Language:
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`F‘nhiiention Language:
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`6 N,..\
`
`s...
`ayZO 3 (06.0“,2013)
`
`lta‘iian
`
`English
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`Friority Date:
`12167029.}
`
`7 May 2012 (07,05,201:
`
`l3?
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`Applicant: SOTECO $111.21., {If/IT]; Via Enrico Feimi 2,
`1—26022 Castei’vertte (Cremona) (IT).
`
`inventors: RONCHH, Domenico; Via. Garibaldi 43, L
`26038 Tetra De’ Pieenardi (Ci'emona) (ET). RAINERL
`Fierinlgi; Via Saragat 10, I-26043 Persia-(:- Dosimo (Cre-
`niona) (IT).
`
`{7-1)
`
`(31)
`
`Agents: CRUGNQLA, Pietro et a1; Luppi (Tingnola (5‘;
`Partners 3,111,, Viale Corassori 54, 1-41 124 Modem-a (ET).
`
`{Designated States (unless otherwise indicated for every
`kind of national protection available): Ali, AG, AL, AM,
`
`Ao, AT, AU, AZ, EA, BB, BS, 311, EN BR, BW, BY,
`132, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DE, DM,
`no, 02, EC, EE EG, Es F1, GB, GD, GE, GH, GM, GT,
`HN, HR, EU, 1D, 1L, 1N, 15, JP, KE, KG, KM, KN, KP,
`KR, KZ, LA, EC, EE, LR, LS, LT, LU, LY, \iA, \iE,
`ME, MG, MK, MN, MW, MX MY, MZ, NA M1, N1
`No, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RU, as, RU,
`aw, SC, SD, SE, 56, SK, SL, SM, 31 sv, gr, r11, rt,
`TM, TN, 111, IT, '12, UA, UG, Us, UZ, VC, VN, ZA
`ZM, ZW.
`
`<84)
`
`Designated States (uniess otherwise indicated. for every
`kind of‘regiomi! protection available): ARIPO (BW, (iii,
`GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, 1'2,
`UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, {(2,111}, TJ,
`TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK,
`1313, BS, Fl, FR, GB, GR, HR, HU, IE, ES, H“, LT, LU, LV,
`MC, MK, MT, NL, NO PL, PT, RO, RS, 311,51, SK, SM,
`TR), CAN (BF, BJ, CF, CG, CI, CM, GA, (1N, GQ, GW,
`ML, MR, NE, SN, TD, 1313).
`Published:
`
`with internaliunai search report (Art. 21(3))
`
`(54)
`
`Title: SUCK iNG A P PARATUS
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`
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`(57) Abstract: A sucking apparatus (1 ), in patticular tor cleaning, comprises at least two sucking motors (10) arranged for generat»
`Eng a flow of air (F) from the outside to the inside ot‘the apparatus (i), at least two liiters (] 7) arranged downstream ot'tiie sucking
`inotors (10) for iiltering the flow of air, each tilter (17) being associated with a respective sticking motor (10), and a, plurality of
`valve elements (23), The valve elements (23) are interposed between, and operationally associated with, each sucking motor (10) and
`each filter (17), and are movable between a rest position (R) wherein they are received in resptxaiVe seats (21), and a raised position
`(S), wherein they are raised from the respective seats (2] ) when the sucking motor (10) assoeiated th rewith is working, to enable
`the passage of ti e flow ot’air (F) prevaientiy aion g a first direction (A), The valve eientent s (23) are provided with a calibrated pas ~
`sage (20) arranged for enabling, when they are in the rest position (R), the passage of at least one portion (F') of the flow of'air Sui) --
`stantiaiiy along a second dire tion (B), opposite the tirst direction (A), from the sucking motor (10) to the tiiter (17) for cleaning the
`latter.
`
`
`
`im’i
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`ae
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`n
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`Wit\
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`MW
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`t
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`Q3
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`M1
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`5»
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`

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`Wt) 2tll‘3/l6807l
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`PCT/lEZfll3/ll53titl5
`
`Suckin a ~ °ratus
`
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`The invention relates to a sucking apparatus,
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`in particular for cleaning, for example
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`arranged for sucking fragments of material or objects of small dimensions.
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`Known sucking apparatuses comprise one or more filters and one or more sucking
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`motors. The filter is interposed between the external environment and the sucking motor
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`for filtering the flow of air sucked by the sucking apparatus. The filter, positioned inside a
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`collecting tank, retains here the sucked material, such that only clean air reaches the
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`sucking motor.
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`After a certain number of hours of operation of the sucking apparatus the filter has to be
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`cleaned, otherwise it no longer permits the air to pass, which reaches the motor only in
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`extremely reduced quantities or even nothing. This thus compromises the operation of the
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`apparatus, which is thus not usable until the filter is cleaned or replaced with a new filter.
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`Accordingly, in known sucking apparatuses it is necessary for the operator, i.e. the person
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`who usually uses the sucking apparatus, to clean the filter.
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`ln order to clean the filter, the operator can dismantle the filter from the sucking apparatus
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`and then shake and hit the filter energetically in order to remove the material that has
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`previously been deposited thereupon. This material
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`is generally released into the
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`surrounding environment and so this method of cleaning th , filter is not advisable
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`because the material released into the environment is again sucked by the sucking
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`apparatus with the result that the filter will again get dirty very rapidly.
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`Alternatively, known sucking apparatuses
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`can comprise
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`air-channelling systems
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`comprising pressure switches and/or deviator valves that convey a flow of air to the filters
`so as to clean the filters.
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`One drawback of these sucking apparatuses is that they are rather complex, and thus
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`costly, clue to the presence of the air channelling systems and of the deviator valves.
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`One embodiment of these apparatuses provides for these air channelling systems leing
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`driven by the operator. One drawback of this embodiment is that the apparatus cannot
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`ensure complete and reliable filter cleaning. Effective filter cleaning in fact substantially
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`depends on the time that
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`the operator dedicates to cleaning the filter. One serious
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`drawback of these apparatuses is the fact that cleaning the filter is manually driven by the
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`operator, who,
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`- typically because of lack of time or negligence — does not dedicate
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`sufficient time to ensure thorough removal of the material deposited on the filter.
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`One object of the invention is to improve known sucking apparatuses.
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`Another object of the invention is to supply a sucking apparatus in which the filter is
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`cleaned completely automatically.
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`A further object of the invention is to supply an efficient sucking apparatus that does not
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`need to he stopped for filter cleaning operations and at
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`the same time ensures good
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`cleaning of the filter.
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`

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`‘WO 2013/168071
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`PCT/IBflllE/llfifitillfi
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`l\)
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`According to the invention, a sucking apparatus is provided as defined in claim l,
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`The invention can he better understood and implemented with reference to the attached
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`drawings, which show an embodiment thereof by way of non-limiting example, in which:
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`Figure l
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`is an exploded view of a sucking apparatus according to the invention in which
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`some elements have been removed for the sake of clarity;
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`Figure .2 is a perspective bottom view of a portion of the sucking apparatus in Figure l;
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`Figure 3 is an enlarged perspective view of a valve element comprised in valve means of
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`the sucking apparatus in Figure l:
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`Figure 4- is an exploded schematic perspective View of a portion of the sucking apparatus
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`in Figure l shown in an operating configuration by way of example.
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`With reference to Figure l
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`there is shown a sucking apparatus l,
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`in particular for
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`cleaning, The sucking apparatus l
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`can, he a vacuum cleaner,
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`for example of the
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`professional and/or industrial type.
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`The sucking apparatus
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`l comprises at
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`least
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`two sucking motors
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`l0 arranged for
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`generating a flow of air F from the outside. to the inside of the apparatus,
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`The sucking apparatus l further comprises at least two filters 17 arranged downstream of
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`the sucking motors l0 for filtering the flow of air F in such a manner as to retain on the
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`filter the sucked material, such that substantially clean air reaches the sucking motor 10,
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`The filters l7 are positioned inside a collecting tank (which is not shown) where the
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`sucked material is retained, such that only clean air reaches the sucking motor 10.
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`Each filter l7 is associated with a respective sucking motor if). it should be noted that in
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`Figure l for the sake of clarity only one sucking motor l0 and one filter l7 are shown.
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`The sucking apparatus l further comprises a base l4 that supports the sucking motors 10.
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`A supporting element l6 on which the filters l7 are fixed is connected to the base M» on a
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`side opposite the sucking motors l0. The base l4 is thus interposed between the sucking
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`motors l0 and the filters l7, The sucking apparatus 1 can comprise, for example, three
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`sucking motors ll") and three filters 'l7.
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`The suclting apparatus l comprises valve means l3 interposed between, and operationally
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`associated with, each sucking motor
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`l0 and each filter
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`l7, The valve means 13,
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`comprises, for example, three valve elements 23, each of which is received in a respective
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`seat Zl ma e on the base 14. The valve elements 23, for example the same as and
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`independent of one another, are movahle hetween a rest position R (shown in Figure l),
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`in which they are housed in the seats ‘21 ( visible in Figures 2 and 4), and a raised position
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`5 tFigure 4)., in which they are raised from the respective seats Ill. This occurs when the
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`sucking motor l0 associated with the valve element 23 is working, as will he explained in
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`greater detail below with particular reference to Figure 4. When a valve element 23 is in
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`the raised position 8 it allows the passage of the flow of air F prevalently along a
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`direction indicated by the arrow A in Figure l,
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`

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`‘WO 2013/168071
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`PCT/IBflllE/llfififillfi
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`(a)
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`Each sucking motor l0 can he axially aligned along a direction that is substantially
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`parallel to the first direction A, to a valve element 23 and to a respective filter l7.
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`in alternative embodiments of the invention, each sucking motor can he not aligned
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`axially on the valve element 23 and on the filter 17 associated therewith, provided that the
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`motor, the valve element and the filter are arranged in such a manner as to be traversed in
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`sequence by the same flow of air.
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`With reference to Figure 3, a valve element 23 is visible which has been significantly
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`enlarged.
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`The valve means l3, in particular each valve element 23 comprised therein, is provided
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`with a calibrated passage 20 arranged for enabling, when the valve means l3 is in the rest
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`position Re the passage of at least one portion ll" of the flow or air substantially along a
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`second direction 8 opposite the first direction A, from the sucking motor l0 to the filter
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`l7 for cleaning the latter.
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`The calibrated passage 20 is suitably sized in such a manner as to enable, on one hand,
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`the passage of a flow of air F that is suitable for ensuring good sucking capacity of the
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`sucking apparatus l, and on the other hand, to enable a suitable portion F” (Figure 4,) of
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`the flow of air to reach the filter 17 to clean the filter l7. in other words, the calibrated
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`passage 20 has dimensions that are such as to enable a portion F’ of the flow of air to
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`reach a filter l7 and clean the filter without there being a loss in sucking capacity of the
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`apparatus l.
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`The valve element 23 comprises a base portion 23a, for example disc-shaped, and a
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`plurality of ilaps 23b, for example eight llaps 23b that are angularly equidistant at an edge
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`of the base portion 23a. The flaps 23b are arranged for defining a suitable thickness for
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`enabling the passage of the flow of air ‘9 when the valve element 23 is in the raised
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`position S.
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`The calibrated passage 20,
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`for example shaped as a circular hole, can he made
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`substantially at a central zone of the base portion 23a (ire. substantially at the centre of the
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`disc).
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`in an alternative embodiment of the invention, the base portion 23a can have any other
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`s
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`“tape than the disc s
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`“tape, for example a square shape or any other polygonal shape.
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`When the valve element 23 is in the rest position R the base portion 23a abuts on the
`surface of the base l4 such as to ensure that the valve element 23 remains inside the seat
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`Zl thereof.
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`The sucking apparatus l comprises a locking element 8 (Figure l), fixed to the base l4,
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`and in which a plurality of cavities 24 are made that are aligned on the seats Zl parallel to
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`the first direction A. The sucking apparatus l, thus comprises a number of cavities 24 that
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`is equal to the number of seats 2i. Each cavity 24, on one side receives an end of a
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`sucking motor l0, and on the other side is shaped as a conduit that projects to the base l4,
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`

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`‘WO 2013/168071
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`PCT/IBflllE/llfifititlfi
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`in particular to the seat 2l underneath. The locking element 8 thus enables the sucking
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`motors ill to be stopped, and, owing to the cavities 24 that act as a guiding element for
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`the valve elements 23
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`the valve means l3 to he moved between the rest position R and
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`the raised position 5.
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`The sucking apparatus 1 further comprises a cover 4 that, together with the base 14,
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`bounds a chamber in which the sucking motors 10 are positioned.
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`inside this chamher different known elements of the sucking apparatus l are positioned,
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`uch as. for example, a soundproofing element
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`l2 »- arranged for reducing the noise
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`produced by the sucking motors if) that spreads outside the apparatus
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`or a cover 7 for
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`the sucking motors l0.
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`With the cover 4 a plurality of ltnown elements are further associated such as,
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`in
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`particular: a pushhutton e for switching on and switching off the apparatus, a handle 5 for
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`carrying the apparatus, an electric cable 2 (provided with a cable gland 3) to supply the
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`apparatus.
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`The sucking apparatus l can further comprise. a plurality of wheels (not shown) owing to
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`which the operator can position the sucking apparatus 1 in the desired position.
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`The operation of the sucking apparatus 1 will now he explained with reference to Figure
`4-.
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`in the sucking apparatus l,
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`two sucking motors ltl are always working, whilst the
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`remaining third sucking motor 10 is networking.
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`For this purpose, the sucking apparatus l comprises an electronic control unit U, for
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`example an electronic card, which has been schernatised in Figure 4. The control unit U is
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`further programmed for controlling the sucking motors it) in such a manner that at least
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`one of the sucking motors if) is stopped and the remaining sucking motors ll) are
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`operational. The electronic control unit U thus drives the three sucking motors hy suitably
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`combining switch—ons and switch~offs of the latter. in particular, the electronic control
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`unit U controls the sucking motors l0 according to preset cyclical temporal sequences
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`such that in successive worl»: cycles of the same duration, the sucking motors it) are
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`stopped in sequence one after the other. Therefore, in the embodiment of the sucking
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`apparatus l disclosed above and shown in Figure 4,
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`in which there are three sucking
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`motors if). the electronic control unit U drives the apparatus
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`by repeating over time
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`three different successive work cycles, during each of which a different sucking motor it)
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`is stopped.
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`The valve elements 23 positioned respectively below the two sucking motors it) that are
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`working are maintained in the raised position 3. in Figure 4, the distance. of the two valve.
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`elements 23 in a raised position 8 from the respective seats Ill has been emphasised for
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`the salce of clarity and the movement of the valve elements 23 has been indicated by the
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`arrows Si and $2. The third valve element 23, arranged below the non—working sucking
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`

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`‘WO 2913/168fl71
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`PCT/lEleB/{BSTMUS
`
`U1
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`motor l0 is in the rest position RA. When a non-working sucking motor it) is driven by the
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`electronic control unit U, the valve element 23 arranged below the motor goes from the
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`rest position R to the raised position S owing to the vacuum created by the sucking motor:
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`On the other hand, when a worlring suclring motor is stopped, the vacuum created by the
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`motor stops suddenly and the underneath valve element 23 moves from the raised
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`position 8 to the rest position R.
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`The two working sucking motors l0 thus create a vacuum in side the collecting tanl< of the
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`sucked material. A flow of air F is thus created that is sucked inside the apparatus 1 and
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`which, after having passed through the two filters 17 arranged below the working motors,
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`passes through the seats 2l, and enters the chamber in which the sucking motors l0 are
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`arranged. From here, a portion F’ of the flow of air passes through the calibrated passage
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`20 of the valve element 23 which is in the rest position R, so as to he directed to the third
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`filter l7, fire the filter arranged helow the non-working sucking motor (on the left in
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`Figure 4:). This third filter l7 is then cleaned by the portion F’ of flow of air, which is
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`clean air inasmuch as it was previously filtered by the remaining two filters l7 arranged
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`below the two working sucking motors l0.
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`()wing to the presence of the calibrated passages 20., which enable the suclring motor ill
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`to he obtained constantly in communication with the respective filter l7 associated
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`therewith, it is possible to clean in turn the filters l7 of the sucking apparatus l
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`in a
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`completely automatic manner.
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`in fact, whilst the sucking apparatus l,
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`is in operation,
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`stopping in turn one or” the three sucking motors 10, it is thus possible to clean effectively
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`the filter associated with the non—working sucking motor 10 without this reducing the
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`llowrate o the flow of air F sucked by the apparatus l.
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`One advantage of the sucking apparatus l is to make available automatic cleaning of the
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`filters l7 with which the apparatus is provided without this reducing the performance of
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`the apparatus in terms of vacuum and llowrate of the sucked air. in fact, the portion F’ of
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`flow of air that cleans the filter 17 is already included in the flow of air lJ found inside the
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`sucking apparatus l.
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`Another advantage of the sucking apparatus l is that the filters 17 are cleaned during
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`norrnal operation of the apparatus.
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`A further advantage is that cleaning of the filters no longer depends on the time that the
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`operator dedicates thereto, as it is no longer performed manually by the operator but
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`automatically by the apparatus.
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`Still another advantage consists of the fact
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`that
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`the sucking apparatus l has lower
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`structural complexity and manufacturing costs than those of known apparatuses, or at the
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`limit structural complexity and manufacturing costs that are comparable with those of
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`lrnown apparatuses. in fact, the sucking apparatus l does not require any external system,
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`

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`‘WO 26313468071
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`PCT/IB2QlS/fl53605
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`6
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`in particular it requires neither pipes, nor solenoid valves nor diverter valves for the air
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`that would make the apparatus l more complex and costly.
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`A still further advantage is that the filters 17 of the sucking apparatus l are more durable
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`and must therefore be replaced significantly less often than known apparatuses. Owing to
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`this, the time that the operator has to dedicate to checking the state of cleanliness of the
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`filters 17, and to replacing the filters 17 is significantly less than known apparatuses:
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`ln alternative embodiments of the invention a different number of sucking motors ll), of
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`filters l7 and of valve elements 23 can be provided, as long as one sucking motor 10 is
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`always associated with, a respective filter l7 and a respective valve element 23 is placed
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`therebetween that maintains the sucking motor l0 and the filter l7 always in reciprocal
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`communication owing to the presence of a calibrated passage 20"
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`Possible variations anti/or additions are possible to what has been disclosed above and/or
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`S'lOWil in the attached drawings.
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`

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`‘WO 2€ll3/l6807l
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`PCT/lEZill3/ll536ll5
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`\3
`
`CLAIMS
`
`p..a
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`Sucking apparatus (l), in particular for cleaning, comprising:
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`-- at least two sucking motors (l0) arranged for generating a flow of air (F) from
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`the outside to the inside of said apparatus (l);
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`~ at least two filters (l7) arranged downstream of said sucking motors (l0) for
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`filtering said flow of air, each filter (l7) being associated with a respective
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`sucking motor (l0);
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`— valve means (l3) interposed between, and operationally associated with, each
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`sucking motor (l0) and each filter (l7), and movable between a rest position (R)
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`wherein said valve means (l3) is received in respective seats (2i), and a raised
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`position (8,), wherein said valve means (l3) is raised from said respective seats
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`(Ill) when the sucking motor (l0): associated, therewith is working, to enable the
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`passage of said flow of air (F) prevalently along a first direction (A);
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`characterised in that said valve means ( l 3,) is provided with a calibrated passage
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`(20)- arranged for enabling, when said valve means (13) is in said rest position (R),
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`the passage of at least one portion (F’) of said flow of air substantially along a
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`second direction (8), opposite said first direction (A), from said sucking motor
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`(l0) to said filter (l7) for cleaning said filter (l7).
`
`Apparatus according to claim l, comprising an electronic control unit
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`(U)
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`arranged for controlling said sucking motors (10) such that at least one of said
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`sucking motors (l0) is stopped and the remaining sucking motors ( l0) are
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`worlring.
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`Apparatus according to claim 2,, wherein said electronic control unit (U) controls
`
`said sucking motors (l0) according to preset cyclical temporal sequences such that
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`said sucking motors (iii) are stopped in sequence one after the other in successive
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`work cycles.
`
`Apparatus according to claim 3, wherein said WOl‘k cycles have the same duration.
`
`Apparatus according to any preceding claim, wherein each sucking motor (l G) is
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`axially aligned, along a direction that is substantially parallel to said first direction
`
`(A),
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`to a valve element
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`(23‘) comprised in said valve means (l3) and to a
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`respective filter (l 7).
`
`Apparatus according to any preceding claim, wherein said calibrated passage (20\v/
`.4
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`is sized in such a manner as to enable a portion (F’) of said flow of air to reacl
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`said filter (l7) and clean said filter (l7) without there being a loss in the sucking
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`capacity of the apparatus.
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`Apparatus according to claim 5 or 6, comprising a base (id) in which said seats
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`(‘21)- for said valve elements (23') are made.
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`6.
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`fl
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`

`

`‘WO 2013/168071
`
`PCTi’IB2313/953605
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`Apparatus according to claim 7, comprising a locking element (8) fixed to said
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`base (l4) and arranged for locking said sucking motors (l0).
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`Apparatus according to claim 8., wherein said locking element (8) comprises a
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`plurality of cavities (Zr-l) aligned on said seats (2i).
`
`10.
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`ll.
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`Apparatus according in claim 9., wherein said cavities (24) are shaped as conduits
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`and arranged for acting as guiding elements ‘or guiding the movement of said
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`valve means ( l3) between said rest position (R) and said raised position (Si).
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`Apparatus accerding to any one Of claims 7 to l0, wherein said at least two
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`sucking motors (iii) are supponed lay said base (14) and enclosed in a chamber
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`bounded by said base (14) and by a cover (4) of said sucking apparatus (l).
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`Apparatus accnrding to any one (if Claims 7 to ll, wherein said filters (17) are
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`fixed tn a supporting element (16)- cennected to said base (8).
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`Apparatus according to any preceding claims comprising three sucking motors
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`(l0), three valve elements (23) and three filters ( l7).
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`

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`‘WO 2013/168071
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`PCTg’IB2313/953605
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`
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`Fig. “E
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`‘WO 26313468071
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`PCTg’IB2313/653605
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`fig,3
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`Fig.2
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`HIS
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`‘WO 2913/168fl71
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`PCT/IEZQBI'QSTMUS
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`
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`Fig, 4
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`
`ENTERNAHGNALSEARGHREPORT
` international application No
`
`A. CLASSIFICATION OF SUBJECT MATTEE
`
`giav. A47L9/za
`gaup.
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`PCT/IBEGlB/GSBfiGE
`
`According to internationai Patent. Ciassiiioation GPO) ortc both nationai classification and iPC
`B, FIELDS SEARCHED
`E Miniinurri documentation searehed (eiassiticatien system fciiowed by olaseiiicetion symbcis)
`
`Documentation searched other than minimum documentation to the extent that such documents are ihciuded in the fields searched
`
`Eieotrunio data base consuited during the internationai search (name of data base and. where pr'actioabie; search terms used)
`
`EEPO-Internai, up: Data
`
`C. DOCUMENTS CONSIDERED TO BE RELEVANT
`
`Category"
`
`Citation of document: with indication, where appropriate of the reievant passages
`
`Reievani to stain". No.
`
`
`
`W0 2010/121656 A1 {KAERCHER 0MBH & CO K0
`ALFRED {DE}; RENTSCHLER WERNER {DE};
`ENGELHARDT) 20 fictober 2010 (2010mla—28)
`page 18, paragraph 3 ~ page 22, paragraph
`1
`
`(OLLILA MARTTI)
`we 85/02528 A1
`20 June 1985 (1985w06e20)
`page 2, paragraph 5
`
`DE 20 2004 012911 01 (SCHOETTLE K0
`ELECTRGSTAR {DEE}
`21 October 2004 (2004~10~21)
`paragraphs [0009]
`n {0012]
`
`DE 20 2007 015242 01 (SCHOETTLE
`ELECTROSTAR {053)
`27 hecemher 2007 (200?—12u27}
`paragraphs [0025]
`_ {0029]
`
`3 {3 Further documents are listed in the continuation of Box 0,
`Special categories of cited documents :
`
`:
`
`:
`
`'A" document defining the generai state ef the art which is not considered
`to be of partieuiar relevance
`"E" earlier application or patent but puhiished on or after the international
`fiiirig date
`"L" documentwhich may throw doubts on priority ciaim(s) orwhich is
`cited to establish the publication date of another citation or other
`special reason (as speon‘ied)
`"G" document reterring to an orai disclosure, use, exhibition or other
`means
`
`"P" document published prior to the international fiiing date but iaterthan
`the priority date claimed
`
`I
`
`See patent family annex.
`
`"T" Eater dooument pumished after the international fiiing date or priority
`date and not in oonfliot with the appiioaticn hut cited to understand
`the principie or theory underiying the invention
`
`"X" document of partiouiar relevance; the claimed invention cannot be
`oonsidered novei or cannot be connidered to involve an inventive
`step when the document is taken atone
`”Y" document of pai’tieuiar relevance; the claimed invention cannot be
`considered to invoive an inventive step when the document is
`combined with one or more other such documents, such combination
`being obvious to a person shined in the art
`
`W document member of the same patent famiiy
`
`Data at the actuai completion of the internationai search
`
`Date of rnaiiing of the internationai search report
`
`19 Juiy 2913
`address of the lSA!
`European Patent Office, PB. 5838 Patentlaan 2
`NI. - 2280 HV Rijswiih
`Tel. (t-3‘i-7I)) 340-2 (2-,
`Fax: (4-31—70) 340-3016
`
` Form
`
`210 (second sheet) (April 2005‘;
`
`31/97/2013
`Authonzed office.
`
`Eckenschwiiier, A
`
`

`

`
`
`WTERNAHGNALSEARCHREPORT
`informatian an paiem Famiiy members
`
`Patent document
`cited in search raped
`
`Publication
`date
`
`memberfis)
`
`iniemaiiana! application No
`
`§ PCT/132013/053606
`Pubiicatéon
`date
`
`2009106933
`
`18v04~2012
`22—04—2013
`29—02u2012
`27n05n2013
`19—04—2012
`20~10~2010
`
`25_39_1ggg
`12m04~1990
`15v10~1986
`17—06v1986
`09u00—1087
`20n06n1085
`
`16~11~2007
`12~04~2006
`21m10w2004
`02m01m2000
`01v03~2006
`
`16u03—2012
`27—12n2007
`26—06—2012
`29~04~2009
`31~07~2012
`30m04w2009
`
`A T
`
`3
`A1
`
`A A
`
`l
`
`102421503
`2421630
`2421630
`2011147104
`2012090640
`2010121666
`
`1260212
`3401476
`0197036
`834633
`1170293
`8602528
`
`376707
`1767370
`0E 202004012911
`0K
`1629762
`1629762
`
`647037
`202007015242
`2062660
`2062660
`2062660 "
`
`00 2010121656
`
`41
`
`28w10»20101
`
`00 8502528
`
`41
`
`20n06m1985
`
`DE 202007015242 01
`
`27_1g,2397
`
`Farm PCT/ISAIQ‘IG (patent famiiy annex) {April 2005}
`
`