throbber
«» UK Patent Application «GB «2413 103 iA
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`(43) Date of A Publication
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`19.10.2005
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`(51)
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`INT CL’:
`BO4C 5/28 , A47L 9/16
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`(52)
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`UK CL (Edition X ):
`B2P P1A P10B2A3 P10B2C
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`(56)
`
`Documents Cited:
`GB 2360719 A
`GB 2374305 A
`WPI Abstract Accession No. 1997-191498 & SE
`9601771
`
`(58)
`
`Field of Search:
`INT CL? A47L, BO4Cc
`Other: ONLINE: WPI, JAPIO, EPODOC
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`
`
`(21)
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`Application No:
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`(22)
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`Date of Filing:
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`0422024.0
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`04.10.2004
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`Priority Data:
`(31) 261332004
`
`(32) 16.04.2004
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`(33) KR
`
`Applicant(s):
`Samsung Gwangju Electronics Co., Ltd.
`(Incorporated in the Republic of Korea}
`271 Oseon-dong, Gwangsan-gu,
`Gwangju-city, Republic of Korea
`
`Inventor(s):
`Jang-keun Oh
`Jung-gyun Han
`
`Agent and/or Addressfor Service:
`Mathys & Squire
`120 Holborn, LONDON, EC1N 2SQ,
`United Kingdom
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`(30)
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`(71)
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`(72)
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`(74)
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`(54)
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`(57)
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`Abstract Title: Cyclonic dust collecting apparatus for a vacuum cleaner
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`A dust collecting apparatus for a vacuum cleaner has a first cyclone dust collecting part 130a and a
`second cyclone dustcollecting part 140a that are arrangedin parallel and may be mirror images of each
`other. The first cyclone dust collecting part comprisesa first suction opening 160a and a first discharge
`opening 133a, and the second cyclone dust collecting part comprises a second suction opening 160b and
`a second discharge opening 143a. The first and second suction openings are connected with the air inflow
`opening of the vacuum cleaner main body, and the first and second discharge openings are connected
`with a vacuum suction chamber of the vacuum cleaner main body. The apparatus may be removed from
`the vacuum cleaner. A lower cover 120 formspart of the first and second cyclone dust collecting parts and
`is removable to allow emptying.
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`FIG. 6
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`143a
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`1601600 160a 15039,
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`1
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`Original Printed on Recycled Paper
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`FIG.
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`2/5
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`FIG
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`2
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`110
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`©Me
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`FIG.
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`4/5
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`FIG.
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`6
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`143a
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`=
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` 160160b—lsrtU1!RSSSSESSSSSYSSI\\EN
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`RASASEASSSSY|
` 3SSTeaBOSSSPSSSTcr—JPASSASSSSSSESSSSS
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`141a
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`131a
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`201
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`2413103
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`DUST COLLECTING APPARATUSFOR A VACUUM CLEANER
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`BACKGROUND OF THE INVENTION
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`Field of the Invention
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`The present
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`invention relates generally to a vacuum cleaner and more
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`particularly, to a dust collecting apparatus for a vacuum cleaner for filtering air drawn
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`into the vacuum cleaner to separate dust entrained therein.
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`10
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`Description of the Related Art
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`Generally, a vacuum cleaner draws in external air by use of a suction force
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`generated at a suction motorto collect dust in a collecting means, such as a dust bag.
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`Various types of vacuum cleaners, such as an upright type, a canister type andastick
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`15
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`type are available.
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`Recently, vacuum cleaners using a cyclone duct collecting apparatus having a
`semi-permanent
`life span are experiencing increased use. These types of cyclone
`vacuum cleaner dust collecting apparatus are used instead of a dust bag, which have a
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`relatively short life span. The cyclone dust collecting apparatus rotates drawn-in air at
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`20
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`a high speed to centrifugally separate dust from the air in which it entrained, and itis
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`possible to reuse the cyclonedust collecting apparatusafter removing the collected dust
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`as many timesas a user wishes.
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`FIG.
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`1
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`is a partially exploded, perspective view of an upright type vacuum
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`cleaner comprising a conventionalcyclonedustcollecting apparatus.
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`1
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`Referring to FIG. 1, a conventional cyclone dust collecting apparatus 10
`comprises a cyclone main body 13 having a suction pipe 11 and a discharge pipe 12:
`and a dust collecting receptacle 14 detachably connected with the cyclone main body 13.
`When a cyclone dust collecting apparatus 10 is mounted within a dust
`collecting chamber 20a of an upright-type vacuum cleaner 20, a suction pipe 11 is
`connected with a suction opening body 21 for drawing in external air, and a discharge
`pipe 12 is connected with a motor driving chamber (not shown) of a vacuum cleaner
`main body 22. Accordingly, if a suction motor (not shown) provided in the motor
`driving chamber is operated, air drawn through the suction opening body 21 flows
`through the suction pipe 11 such that the air is rotated in the cyclone dust collecting
`apparatus 10. At
`this time, any dust entrained in the air is collected in the dust
`collecting apparatus, and the cleaned air separated from the dust is discharged to a
`dischargepipe 12.
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`The conventional cyclone dust collecting apparatus 10 has predetermined
`length and width dimensions to provide a sufficient space for forming a rotating air
`stream and for centrifugally separating dust therefrom. Therefore, the cyclone dust
`collecting apparatus 10 usually has large dimensions such that the vacuum cleaner
`comprising the cyclone dust collecting apparatus becomesbulky and heavy.
`Furthermore,the initial suction force generated at the suction opening body 21
`can be reduced due to energyloss exerted in the formationofa rotating air stream at the
`commencement of vacuum cleaner operation.
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`10
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`15
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`SUMMARY OF THE INVENTION
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`The present
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`invention has been conceived to solve the above-mentioned
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`problems occurring in the prior art vacuum cleaners, and an aspect of the present
`invention is to provide a compact dustcollecting apparatus having improved suction
`capability and dust separating capability for removable insertion into a vacuum cleaner.
`In order to achieve the above aspects,
`there is provided a dust collecting
`apparatus for removableinsertion into a vacuum cleaner havingafirst cyclone dust
`collecting part and a second cyclone dustcollecting part being arranged substantially in
`parallel relation with respectto the air inflow opening ofthe vacuum cleaner main body.
`The first cyclone dust collecting part comprises a first suction opening andafirst
`discharge opening, and the second cyclone dust collecting part comprises a second
`suction opening and a second discharge opening.
`The first and second suction
`Openings are connected with the air inflow opening,
`the first and second discharge
`openings are connected with the vacuum suction chamber of the vacuum cleaner main
`body.
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`10
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`15
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`Thedust collecting apparatus having the abovecharacteristic mayhavethefirst
`suction opening having a cross-sectional area substantially of equal size as the cross-
`sectional of the suction area ofthe second suction opening, such that the amountofair
`suction entering into the first and second cyclone dustcollecting parts is substantially
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`similar.
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`The cross-sectional area ofeach air discharge ofthe first and second discharge
`openings mayalso be substantially the same.
`The first and the second suction openings may be a mirror image of each other
`with respectto the air inflow opening.
`The dustcollecting apparatus of a vacuum cleaner according to an embodiment
`of the present invention may comprise a discharge duct for connecting the mergedfirst
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`;
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`and second discharge openings to the vacuum suction chamber; anda filter disposed at
`the discharge duct between the discharge openings and the vacuum suction chamber.
`The first and second cyclone dust collecting parts may be a mirror image of
`cach other with respectto the air inflow opening.
`A cyclone dust collecting apparatus for a vacuum cleaner according to another
`embodimentofthe present invention comprises a casing having first and second suction
`openings; a first cyclone dust collecting part connected with the first suction opening
`and having a first dust separation chamber andafirst discharge opening: a second
`cyclone dust collecting part connected with the second suction opening and having a
`second dust separation chamber and a second discharge Opening; and a lower cover
`disposed at a lower part ofthe casing and configured to be detachable therefrom. The
`lower cover is configured to open and close the first and second dust separation
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`chambers.
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`A dustcollecting apparatus having the above construction according to another
`embodimentofthe present invention may comprisea first dust separation housing wall
`and a second dust separation housing wall. The first dust separation housing wall
`partitions one side of the casinginto the first dust Separation chamberandthefirst dust
`collecting chamber, and the second dust separation housing wall partitions the other side
`of the casing into the second dust Separation chamber and the second dust collecting
`chamber.Afirst connecting opening is configured in the first dust separation housing
`wall for connecting the first dust separation chamber and the first dust collecting
`chamber; and a second connecting opening is configured in the second dust separation
`housing wall for comnecting the second dust Separation chamber and the second dust
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`collecting chamber.
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`The first and second cyclone dust collecting parts may further comprise first
`and second grill assemblies, respectively.
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`BRIEF DESCRIPTION OF THE DRAWINGS
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`The above and otheraspects, features and advantages ofthe present invention
`will be more apparent from the following detailed description taken with reference to
`the accompanying drawings, in which:
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`is a partially exploded, perspective view of an upright-type vacuum
`1
`FIG.
`cleaner using a conventional cyclone dust collecting apparatus;
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`10
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`FIG.2 is a perspective view of a dust collecting apparatus for a vacuum cleaner
`according to an embodiment ofthe present invention;
`FIG.3 is an exploded perspective view ofthe dust collector shown in FIG.2;
`FIG. 4 is a partially cut-away, perspective view ofthe dust collecting apparatus
`shown in FIG.2;
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`15
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`FIG,5 is a rear perspective view of a portion ofthe unassembled dust collecting
`apparatus shownin FIG.2;
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`FIG. 6 is a cross-sectional side view illustrating the operation of the dust
`collecting apparatus shownin FIG.2;
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`FIG. 7 is a view illustrating how the dust collecting apparatus is mounted in a
`vacuum cleaneraccording to the present invention.
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`20
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`DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTSSREE,PREPERREDEMBODIMENTS
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`Certain preferred embodiments of the present invention will be described in
`greater detail with reference to the accompanying drawings.
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`the same drawing identification reference
`In the following description,
`numerals are used to designate the same elements throughout the different drawing
`figures.
`The disclosure below is intended as merely a detailed construction and
`description of the elements andis provided to assist in a comprehensive understanding
`of the invention.
`Thus,it is apparent that the present invention can be carried out
`without someorall of these disclosed conventional parts. Also, well-known functions
`or constructions are not described in detail, since they would obscure the invention in
`unnecessary detail.
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`As shown in FIGS. 2 through 6, a dust collecting apparatus for a vacuum
`cleaner 100 according to an embodimentofthe present invention comprises a casing
`110, a lower cover 120, first and second cyclone dust collecting parts 130 and 140, and
`a discharge duct 150.
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`As shown in FIG. 2, the casing 110 forms an external housing for the dust
`collecting apparatus 100 and comprises a suction pipe 160 disposedat the front thereof.
`Whenthe dust collecting apparatus 100 is mounted within a vacuum cleaner main body
`31 (FIG. 7), the suction pipe 160 is connected with an air inflow opening 31aof the
`vacuum cleaner main body 31 to provide fluid communication therebetween. As
`shown in FIG. 4,
`the suction pipe 160 is separated by a wall into first and second
`suction openings 160a, 160b, respectively, therein.
`Thefirst and the second suction
`openings 160a, 160b preferably are a mirror image of each other with respect to a
`centerline CL of the suction pipe 160 passing through the wall. Accordingly, the total
`cross-sectional area of the first and second suction openings 160a, 160b together have
`substantially the samesize as the cross-sectional area ofthe suction pipe 160.
`As shown in FIG.2, the lower cover 120is detachably attached to a lower part
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`of the casing 110. As shown in FIG. 3, a connecting groove 120ais formed in the
`upper surface of cover 120.
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`The first and second cyclone dust collecting parts 130 and 140 are disposed
`substantially parallel to each other in the casing 110.
`Specifically, the first cyclone
`dust collecting part 130 is connected with the first suction opening 160a, and the second
`cyclone dust collecting part 140 is connected with the second suction opening 160b, and
`accordingly, air drawn into the suction pipe 160 is divided by the wall to flow into and
`through the first and second suction openings 160a, 160b such that substantially an
`equal amountofair flowsinto thefirst and second cyclonedust collecting parts 130 and
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`10
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`140.
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`15
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`Referring now to FIGS.4-6, the first cyclone dust collecting part 130 comprises
`a first dust separation housing wall 131, an extension of which forms the above-
`described dividing wall, as shown in FIG. 4, a first dust separation chamber 130a, a first
`dust collecting chamber 130b, a first air guide member 132,afirst discharge pipe 133
`and a first grill assembly body 134 (FIG.6).
`The first dust separation housing wall 131 is configured in the shape of a
`cylinder, and partitions one side ofthe casing 110, including the suction pipe 160, into
`two spaces. As shown in FIG.5, oneside ofthe casing 110 is divided into the first
`dust separation chamber 130a andthefirst dust collecting chamber 130b by the first
`dust separation housing wall 131. As shown in FIG. 5,
`the first dust Separation
`housing wall 131 has thefirst connecting opening 131a at oneside thereof.
`Thefirst
`comnecting opening 131a provides fluid communication from the first dust separation
`chamber 130ato thefirst dust collecting chamber 130b. Accordingly, dust entrained in
`the air is separated in the first dust separation chamber 130a and is transferred via the
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`first connecting opening 131ainto thefirst dust collecting chamber 130b,to be collected
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`therein.
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`Referring now to FIGS. 3, 4 and 6,thefirst air guide member 132 is configured
`at an upper part of the first dust separation housing wall 131 to connect to the first
`suction opening 160a.
`The first air guide member 132 guides the air to rotate
`tangentially relative to the annular wall ofthe first dust Separation chamber 130a, such
`that air drawn in through the first suction opening 160a forms a rotating air stream
`within thefirst dust separation chamber 130a.
`The first discharge Pipe 133 is configured at an upper part of the first dust
`separation housing wall 131, as shown in FIGS. 3 and 4.
`Thefirst discharge pipe 133
`comprisesthefirst discharge opening 133a, and is configured to dischargethe air that
`has been drawn in toward the first dust separation chamber 130a.
`The first grill assembly body 134 is connected to the first discharge pipe 133,
`Thefirst grill assembly body 134 comprises a plurality ofpenetrating holes 134a, and a
`blocking member 135. The blocking member 135 inhibits the dust, entrained in the air
`circulating in the first dust Separation chamber 130a,
`from entering the discharge
`opening 133a through the penetrating holes 134a.
`The second cyclone dust collecting part 140 has the Same structure as the first
`cyclone dustcollecting part 130, but is a mirror image thereof.
`It comprises a second
`dust separation housing wall 141, a second dust separation chamber 140a, a second dust
`collecting chamber 140b, a second air guide member 142, a second discharge pipe 143
`and a second grill assembly body 144.
`Since the connections between the respective
`elements of the second cyclone dust collecting part 140 and operations thereofare the
`same as the first cyclone dust collecting part 130, detailed description thereof will be
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`omitted for conciseness.
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`The first and second cyclonedust collecting parts 130 and 140 are a mirror
`image of each other about centerline CL with respect to the suction pipe 160. Each
`constituent member, such asthe dust separation chamber and discharge opening, has the
`same size such that the first cyclone dust collecting part 130 and the second cyclone
`dust collecting part 140 have the substantially identical suction capability and dust
`separation capability.
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`10
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`15
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`The discharge duct 150 is configured at an upper part of the casing 110 to
`the first and second discharge opening 133a and 143a. When the dust
`connect
`collecting apparatus 100 is mounted within the vacuum cleaner main body 31 (FIG.7),
`the discharge duct 150 is connected via a discharge grill part 32 (FIG. 7) to a vacuum
`suction chamber within a vacuum cleaner main body 31. As shown in FIG. 3, a filter
`170 is configured between discharge duct 150 and discharge grill port 32, while
`providing fluid communication therebetween. The filter 170 operatesto filter minute
`dust particles that are not removed in the cyclone dust collecting parts 130 and 140, and
`may be madeofa suitable material, such as a non-wovenfabric or a sponge.
`The dust collecting apparatus 100 having the above described construction
`according to an embodiment ofthe present invention is mounted in a dust collecting
`chamber 31b of vacuum cleaner main body 31, as shown in FIG. 7. As the dust
`collecting apparatus 100 is mounted in the dust collecting chamber31b, the suction pipe
`160 becomes connected with the air inflow opening 31a, and the discharge duct 150
`becomes connected with the exhaust grill part 32. The exhaust grill part 32 itself is
`connected to, and is in fluid communication with, a vacuum suction chamber (not
`shown), in which a suction motor (not shown) is mounted.
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`Whenthe dust collecting apparatus 100 is mounted in the vacuum cleaner main
`body 31 and the suction motoris operated, air entrained with dust from a surface to be
`vacuumed is drawn into the suction opening body 33. The drawn in airis passed
`through the air inflow opening 31a andthe suction pipe 160 and branchesatthefirst and
`the second suction openings 160a, 160b (FIG. 6)
`to flow into each cyclone dust
`collecting part 130 and 140 (FIGS. 4 and 6).
`
`As described in FIG. 6, the air flowing through each suction opening 160a,
`160b is guided by air guide members 132, 142 (FIG.4) of each cyclone dust collecting
`part 130, 140 such that the air forms a rotating air stream in each dust separation
`chamber 130a, 140a. At
`this time, any dust entrained in the air is centrifugally
`separated to fall to a lowerpart of the dust separation chambers 130a, 140a along the
`inner walls of each dust separation housing 131, 141. The dust having fallen to the
`lowerpart ofthe dust separation chambers 130a and 140a is movedto the dirt collecting
`chambers 130b and 140bvia the connecting openings 131a, 141a, by the centrifugal
`force of the rotatingair.
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`The air separated from the dust in the dust separation chambers 130a, 140a
`flowsout to the discharge openings 133a and 143avia the penetrating holes 134a and
`144a of the grill assembly bodies 134 and 144, respectively. The air then flows along
`the discharge duct 150 to be discharged to outside of the dust collecting apparatus,
`through the discharge grill part 32 of the vacuum cleaner main body 31 (FIG. 7).
`While the air is moving along with the discharge duct 150 to the exhaust grill part 32,
`minute dust particles that are not removed in the cyclone dust collecting parts 130 and
`140arefiltered bythe filter 170 (FIG.3).
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`When the amount of dust collected in the dirt collecting chambers 130b and
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`140b reaches a level requiring removal, the lower cover 120 is opened to remove the
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`dust collected in the dirt collecting chambers 130b and 140b and the dustis discarded.
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`The dust collecting apparatus 100 according to the preferred embodimentofthe
`present invention is depicted as being mountedin a canister type vacuum cleaner asan
`example. However, one will appreciate that the dust collecting apparatus 100 can be
`applied to other various types of vacuum cleaner configurations, and is not limited to
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`the canister type vacuum cleaner.
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`As described above, the dust collecting apparatus can become compact-sized
`due to the parallel arrangement of two cyclone dust collecting parts 130 and 140.
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`10
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`Accordingly, a dust collecting apparatus 100 having an advanced suction
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`capability and dust separation capability can berealized.
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`15
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`Additional advantages, objects, and features of the embodiments of the
`invention as set forth in part
`in the preceding description and in part capable of
`becoming apparent to those having ordinary skill in the art upon examination of the
`foregoing, or may be learned from practice of the invention, Other objects and
`advantages of the embodiments of the invention may be realized and attained as
`particularly pointed out in the appended claims, which together with equivalents thereof,
`only limit the invention.
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`20
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`Each feature disclosed in this specification (which term includes the claims)
`and/or shown in the drawings may be incorporated in the invention independently of
`other disclosed and/orillustrated features.
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`Statements in this specification of the “objects of the invention” relate to
`preferred embodiments of the invention, but not necessarily to all embodiments ofthe
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`"
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`invention falling within the claims. Reference numerals appearing in the claims are
`illustrative only and the claimsshall be interpretedas ifthey are not present.
`The description of the invention with reference to the drawings is by way of
`example only.
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`or
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`The text of the abstract filed herewith is repeated here as part of the
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`specification.
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`10
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`A dust collecting apparatus for a vacuum cleaner has a first cyclone
`dust collecting part and a second cyclone dust collecting part
`that are arranged
`substantially parallel with respect to an air inflow opening of a vacuum cleaner main
`body, and may be mirror imagesof each other.
`Thefirst cyclone dust collecting part
`comprisesafirst suction opening anda first discharge opening, and the second cyclone
`dust collecting part comprises a second suction opening and a second discharge opening.
`The first and second suction openings are connected with the air inflow openingofthe
`vacuum cleaner main body, andthe first and second discharge openings are connected
`with a vacuum suction chamberofthe vacuum cleaner main body. Accordingly, a dust
`collecting apparatus for a vacuum cleaner can be realized, having an advanced suction
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`capability and dust separation capability.
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`2
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`Whatis claimedis:
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`5
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`1. A dust collecting apparatus for a vacuum cleaner, configured for removable
`insertion into a vacuum cleaner main body which is connected to a vacuum suction
`chamber for generatinga suction force, and having a dust collecting chamber connected
`with an air inflow opening, the dust collecting apparatus comprising:
`a first cyclone dust collecting part and a second cyclone dustcollecting part for
`centrifugally separating dust entrained in the air which is drawn in through the air
`inflow opening,
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`10
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`the first and second cyclone dust collecting parts being arranged substantially in
`parallel relation with respectto the air inflow openingofthe vacuum cleaner main body.
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`2. The dustcollecting apparatus according to claim 1, wherein the first cyclone
`dust collecting part further comprises:
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`15
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`a first suction opening connected with the air inflow opening; and
`a first discharge opening connected with the vacuum suction chamber,
`and the second cyclone dust collecting part comprises:
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`a secondsuction opening connected with the air inflow opening; and
`a second discharge opening connected with the vacuum suction chamber.
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`20
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`3. The dust collecting apparatus according to claim 2, whereinthefirst suction
`opening hasa cross-sectional area substantially equal size as the cross-sectional of the
`suction area ofthe second suction opening.
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`4, The dust collecting apparatus according to claim 3, wherein thefirst and the
`second suction openings are a mirror image ofeach other with respect to the air inflow
`opening.
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`5. The dust collecting apparatus according to claim 2, wherein each of the first
`and second discharge openings has a substantially similar cross-sectional discharge area.
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`6. The dustcollecting apparatus according to claim 2, comprising:
`a discharge duct for merging the first and second discharge openings and for
`connecting the merged discharge opening to the vacuum suction chamber; and
`a filter disposed at the discharge duct between the discharge openings and the
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`10
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`vacuum suction chamber.
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`16
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`7. The dust collecting apparatus according to claim 2, wherein the first and
`second cyclone dust collecting parts are a mirror imageofeach other with respectto the
`air inflow opening.
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`20
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`8. A dust collecting apparatus for a vacuum cleaner, configured for removable
`insertion into a vacuum cleaner main body which is connected to a vacuum suction
`chamberfor generating a suction force, and having a dust collecting chamber connected
`with an air inflow opening, the dust collecting apparatus comprising:
`a casing havingfirst and second suction openings connected with and dividing
`the air inflow opening;
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`a first cyclone dust collecting part having a first dust separation chamber and a
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`first discharge opening connected with the vacuum suction chamber, and disposed
`within the casing configured to connectwith the first suction opening;
`a second cyclone dustcollecting part having a second dust separation chamber
`and a second discharge opening connected with the vacuum suction chamber, and
`disposed within the casing configured to connectwith the second suction opening; and
`a lower cover disposed at a lower part of the casing configured to detachably
`open and close the first and second dust separation chambers.
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`5
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`10
`
`9. The dust collecting apparatus according to claim 8, wherein thefirst suction
`opening has a suction area substantially the same cross-sectional size as that of the
`suction area ofthe secondsuction opening.
`
`10. The dust collecting apparatus according to claim 9 wherein the first and the
`second suction openings are a mirror imageof each other with respect to the air inflow
`opening.
`
`15
`
`11. The dust collecting apparatus for a vacuum cleaner according to claim 8,
`wherein each of the first and second discharge openings has a substantially similar
`cross-sectional area ofthe discharge opening.
`
`20
`
`12. The dustcollecting apparatus according to claim 8, comprising:
`a discharge duct for mergingthe first and the second discharge openingsand for
`connecting the merged discharge openings to the vacuum suction chamber; and
`a filter disposed at the discharge duct between the discharge openings and the
`vacuum suction chamber.
`
`'s
`
`Dyson Ex1026
`Page 21
`
`Dyson Ex1026
`Page 21
`
`

`

`13. The dust collecting apparatus according to claim 8, wherein thefirst and
`second cyclone dust collecting parts are a mirror image ofeach other with respect to the
`air inflow opening.
`
`5
`
`10
`
`14. The dust collecting apparatus according to claim 8, comprising:
`a first dust separation housing wall for partitioning oneside of the casing into
`the first dust separation chamberandthefirst dust collecting chamber;
`a first connecting opening configured in the first dust separation housing wall
`for connecting thefirst dust separation chamberandthefirst dust collecting chamber;
`a second dust separation housing wall for partitioning the other side of the
`casing into the second dust separation chamber and the second dust collecting chamber;
`
`and
`
`a second connecting opening configured in the second dust separation housing
`wall for connecting the second dust separation chamber and the second dust collecting
`
`15
`
`chamber.
`
`15. The dust collecting apparatus according to claim 8, wherein the first and
`second cyclone dust collecting parts further comprise first and second grill assemblies,
`respectively.
`
`20
`
`16. Dust collecting apparatus substantially as hereinbefore described with
`reference to and as shownin Figures2 to 6 ofthe accompanying drawings.
`
`'6
`
`Dyson Ex1026
`Page 22
`
`Dyson Ex1026
`Page 22
`
`

`

`17. A vacuum cleaner having a vacuum cleaner main body, which is connected
`to a vacuum suction chamberfor generating a suction force and having a dust collecting
`chamber connected with an air inflow opening,
`there being disposed in said dust
`collecting chamber dust collecting apparatus in accordance with any one of the
`preceding claims.
`
`W
`
`Dyson Ex1026
`Page 23
`
`Dyson Ex1026
`Page 23
`
`

`

`
`Application No:
`Claims searched:
`
`GB0422024.0
`1-7
`
`498 * Deg
`P
`Mo,
`as
`The ‘%,
`a
`°
`+ Patent
`2, Office £
`~ ee ~
`Cy
`o
`a
`Nr. pRdY
`BR Examiner:
`Date of search:
`
`Patents Act 1977: Search Report under Section 17
`
`~y
`c y
`Ag
`
`ant
`INVESTOR IN PEOPLE
`
`MrJason Scott
`3 March 2005
`
`Documents considered to be relevant:
`
`Category|Relevant|Identity of document and passageorfigure of particular relevance
`
`
`
`WPI Abstract Accession No. 1997-191498 & SE 9601771
`ELECTROLUX AB Seeabstract and figure depicting two parallel
`
`mirror image cyclonesfor use in a vacuum cleaner. Noteinlet 11 which
`
`splits into 12a and 12b.
`
`
`
`
`
`
`
`
`
`
`
`
`
`X
`
`X
`
`GB 2360719 A
`DYSONSee whole document and especially the parallel downstream
`cyclones 30 and respectiveinlets 24 in figure 1.
`GB 2374305 A
`DYSONSee whole document and especially the discussion of
`downstream cyclones 104 in claim 1.
`
`
`
`
`
`Documentindicating lack of novelty or inventive
`step
`Y
`Documentindicating lack of inventive step if
`
`combined with one or more other documents of
`same category.
`E
`Memberofthe same patent famuly
`
`
`
`
`Documentindicating technological background and/orstate
`of the art.
`P
`Documentpublished on orafter the declared priority date
`but before the filing date of this invention.
`Patent documentpublished on orafter, but with priority date
`
`
`earlier than, the filing date of this application.
`
`
`
`
`
`
`Field of Search:
`Search of GB, EP, WO & USpatent documentsclassified in the following areas of the UKC* :
`
`Worldwide search of patent documentsclassified in the following areas of the IPC”
`A47L; B04C
`The following online and other databases have been used in the preparation of this search report
`WPI, JAPIO, ERPODOC
`
`An Executive Agency ofthe Department ofTrade and Industry
`
`Dyson Ex1026
`Page 24
`
`Dyson Ex1026
`Page 24
`
`

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