Sept. 28, 1954
`
`D F. BACHELLER
`DISPENSING PUMP FOR SMALL CONTAINERS
`
`2,690,278
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`Filed May 24, 1952
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`PETITIONER - THE CLOROX COMPANY - EXHIBIT 1014 - Page 1
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`

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`Patented Sept. 28, 1954
`
`2,690,278
`
`UNITED STATES PATENT OFFICE
`
`2,690,278
`DISPENSING PUMP FOR SMALL
`CONTAINERS
`D Flavius Bacheller, Glendale, Calif.
`Application May 24, 1952, Serial No. 289,825
`(01. 222—207)
`5 Claims.
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`10
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`1
`The invention relates to small, compact man
`ually operated pumps which are readily adapted
`to be used on bottles and small metal containers
`replacing the usual cover or top, the pump being
`one serving simultaneously as a closure and a
`dispensing pump to eject periodically small quan
`tities of the contents of the container. More par
`ticularly the invention is one adapted to be op
`erated by the thumb or perhaps the fore?nger
`while the container as a whole is grasped in the
`same hand.
`A variety of dispensing pumps have heretofore
`been employed for a similar or related purpose
`but these pumps for the most part have de
`pended upon one variation or another of the
`conventional piston pump construction with their
`attendant complexities and defects. Other pumps
`of a comparable nature have been employed in
`some cases to provide a spray ejection or ejection
`under considerable force for some special pur
`pose such as an atomizer. Devices. of the gen
`eral .sort here in question which have been em
`ployed in the past have been to a large extent
`rather bulky requiring an unnecessarily large
`quantity of material in their construction and a
`relatively large number of working parts and
`attendant large number of assembly operations
`in their fabrication.
`Among the objects of the present invention is
`to provide a new and improved closure and dis
`pensing pump which is relatively inexpensive to
`.manufacture, which is economical of material,
`and which at the same time is a versatile type
`of pump, the construction of which is suited to
`the dispensing of liquids of widely varying vis
`cosity.
`. Another object of the invention is to provide
`a new and improved dispensing pump which can
`be readily fabricated of moldable material such
`as one or another of the commercially available
`plastics which contemplates fabrication of rela
`tively few-pieces to. comprise the entire assembly
`with a corresponding relatively few assembly op
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`2
`terior dimension of the neck of the bottle or other
`container to which it may be attached.
`Another object of the invention is to provide
`a dispensing pump suf?ciently compact to permit
`mounting all the operating parts on the neck or
`top of the container without the necessity of
`inserting such parts down into the container
`nor. of extending them beyond the nominal ex
`terior of the open end of the container.
`With these and other objects in view, the
`invention consists in the construction, arrange
`ment and combination of the various parts of the
`device whereby the objects contemplated are at
`tained as hereinafter set forth, pointed out in the
`appended claims and illustrated in the accom
`panying drawings.
`>
`The present application is a continuation-in
`part of my co-pending application Serial No.
`778,059, ?led October 6, 1947, now abandoned.
`In the drawings;
`'
`Figure 1 is a longitudinal sectional view of
`one form of the invention showing the manually
`operated dispenser pump mounted upon the
`threaded upper end of a conventional container.
`Figure 2 is a longitudinal sectional view of a >
`manually operated dispensing pump modi?ed to
`a slight extent with respect to Figure 1.
`Figure 3 is a longitudinal sectional view of still
`another form of the dispensing pump showing a
`form of attachment useful in applying the device
`to containers which do not have a threaded ex
`terior at the opening.
`Figure 4 is across-sectional view taken on the
`line 4-4 of Figure 3.
`Figure 5 is a fragmentary longitudinal sec
`tional view taken on the line 5—5 of Figure 3.
`In the form of the device illustrated in Figure l
`a container 10 is shown having a neck ll pro
`vided with a threaded exterior l2. The pump
`mechanism is shown mounted upon a container
`closure member [3 which is provided‘ with a
`sleeve-like portion l4 threaded to engage the
`threads 12 on the neck of the container. A top
`I5 of the closure member forms essentially the
`closure for the container and may have provided
`therein a sealing washer it to effectively seal
`the closure member upon the container.
`At the center of the top is an opening H in
`which is mounted an insert l8 having av pipe 19
`extending downwardly therefrom to the interior
`of the container. The insert i8 has a disc-like
`portion 20 overlying the top Within a recess 2|.
`Centrally disposed within the insert is a depres
`sion 22 at the bottom of which is a suction port
`23, which communicates with the pipe it. A
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`erations. >
`Still another object of the invention is to pro
`vide a new and improved compact manually or
`finger operated dispensing pump wherein the con
`ventional piston is dispensed with in favor of a
`resilient movable wall of the pump chamber
`‘which is exposed to manual operation.
`Still another object of the invention is to
`provide a new and improved manually operated
`:dispenser pump which is positive in its action,
`compact in its design and of sufficiently small
`dimension that it can assume virtually the ex
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`ball check 24 is received in the depression 22
`seating in this instance on the wall of the de
`pression.
`A body 25 of the pump is herein shown as com
`prising a double wall having an outer portion 26
`and an inner portion 21, the inner portion 21 of
`which forms essentially the outer wall of a pump
`chamber 28-. In this instance the lower edges of
`the double wall are shown fastened to the closure
`member [3, the outer portion being mounted
`directly on the top face of the closure member
`and the inner portion being received within a
`rim around the disc-like element 23 of the insert.
`Around the upper or outer edge of the double
`wall and particularly the outer portion thereof
`is an upstanding rim 29 within which is positioned
`a resilient dome 33 preferably constructed of rub
`ber or one of the acceptable synthetic materials
`such as neoprene or perhaps a suitable resilient
`plastic material. At the lower edge of the dome
`is a thickened portion 3| which expands resil-
`iently outwardly into engagement with the in
`terior side of the rim 29 forming an air-tight
`seal. An interior space 32 within the dome forms
`a portion of the. pump chamber 28, the dome itself
`comprising a resilient wall of the pump chamber.
`Centrally disposed within the pump chamber
`28 is a discharge chamber 33 formed by an inner
`annular wall 34 having a cap 35 closing the top
`of the discharge chamber. At the lower end of
`the inner wall is a frusto-conical wall 36, the
`interior of which forms a seat for a ball check 31.
`At the bottom of the frusto-conical wall is an inlet
`port 33 which provides an inlet into the discharge
`chamber 33. A short cylindrical portion 39 sur
`rounding the inlet port extends downwardly in
`axial alignment with the suction port 23 and
`forms in e?ect a stop or limit with respect to the
`ball check 24 so that the ball check 24 may be
`retained in proper position for seating upon its
`seat.
`To discharge the contents of the discharge
`chamber 33 there is provided a spout 40 com
`municating with the discharge chamber through
`the inner annular wall 34, the spout extending
`through a suitable opening 4! in the inner por
`tion 24 and a similar opening 42 in the outer por
`tion 26. Thus mounted the spout also provides a
`means for supporting the inner annular wall 34
`in proper position within the pump chamber.
`In operation the pump is mounted as shown
`upon a container such as the container In with
`the pipe [9 extending to a position only slightly
`elevated above the bottom of» the container (not
`shown). To eject the contents of the container
`the pump is manipulated-by depressing the dome
`33 down and up in alternate strokes. On the
`downward stroke the volume within the pump
`chamber is reduced'and-initial'air therein ejected
`through the inlet port 38 to- the discharge cham
`ber and thence out through the spout» 40. When
`the dome is released; the inherent resiliency of
`the dome raises it to its initial position as shown
`in Figure l. The ball- check 3? seats closing off
`air which might otherwisebe drawn-backthrough
`the spout and thereupon the contents- of‘ the con
`tainer l€l~ are drawn up through the pipe |9~ past
`the ball check 2-4 which is unseated’ by this ?ow,
`the contents being emptied into the pump cham
`ber 23. Two or three initial operations of the
`dome may be‘ necessary in order to ?ll the pump
`chamber to a suitable degree.
`After the pump chamber has received a sul?
`cient quantity of liquid from the container a suc
`ceeding depression of the dome 33 will-force the
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`contents of the pump chamber through the inlet
`port 28 into the discharge chamber 33 unseating
`the ball check 37 during this passage. Mean
`while the ball check 24 as a result of the force
`of gravity on the ball check 24 coupled with pres
`sure exerted in the pump chamber will seat upon
`its seat preventing ?ow of the contents down
`wardly through the pipe l9‘. The force exerted
`the pump chamber will seat upon its seat pre
`venting ?ow of the contents downwardly through
`the pipe E3. The force exerted upon the dome
`3a by the ?nger will drive a substantial portion
`of the contents of the discharge chamber 33 out
`wardly through the spout 43.
`In the modi?ed form of the device illustrated
`in Figure 2 the overall construction and mode of
`operation is- substantially similar to that of Fig
`ure 1 except that in this form of the device the
`arrangement is such that the liquid contents of
`the container are prevented from coming into
`direct contact with the material of the resilient
`dome. This is found desirable under certain cir
`cumstances where the character of the liquid in
`the container might be such that it would be
`detrimental to have it come into contact with a
`resilient type of material of which the dome must
`be constructed.
`Essentially the form of the invention in Figure
`2, in addition to those parts already described
`in connection with Figure 1, features an upstand
`ing rim 29’ relatively higher than the‘ rim 29
`su?icient to form at its interior a wall- 43 of a
`piston chamber. Reciprocally mounted within
`the wall‘ is a piston 44' having a piston wall 45
`in smooth sliding engagement with the wall 43.
`The piston has a piston rod 46 anchored and
`sealed at its mid-portion, the piston rod 46 ex
`tending upwardly into engagement with a central
`portion of a dome 33’ whereit is held or anchored
`by means of suitable washers 41», the washers
`being e?ective in sealing the piston rod 46 in the
`dome 30’. In- this instance an edge portion 48
`of‘ the dome 30’ extends over the exterior of the
`rim 29' where it is anchored by means of a ?ange
`4t useful in securing as well as sealing the dome
`in proper position.
`In the operation ofv this form of the device the
`?ow of the liquid contents of the container follows
`the same path- as heretofore described‘ in connec
`tion with Figure 1. In this instance, however, the
`liquid contents donot pass beyond a chamber 53
`formed by-the wall 43-, being prevented from com
`ing into contact with the interior of the‘dome 30'
`by-the piston 44.‘. A space 51 between the dome
`33' and the piston Mirema-ins ?lled with. air and
`also retains its initial shape. Depression of‘the
`dome 30' will push thepiston 44 into the chamber
`53, thereby forcing a- discharge of the contents of
`the pump chamber through thedischarge cham
`ber 33‘ on the downstroke. When the ?nger is
`releasedfrom- the downstroke, the inherent resil
`ience in the dome 33’ will raise thedome and also
`raise the piston 44. through its connection thereto
`by means of the piston rod 43. Pumping action
`may thereafter be continued as will begobvious by
`pumping‘ the dome 30’ up and down.
`The form of the device illustrated in Figure 3
`exempli?es a dispensing pump which. is-particu
`larly well adapted to application-to the neck of a
`bottle which is not provided with threads or
`other special means by virtue of which the pump
`might beattached. In- this form of the device a
`closure member 63 is provided with a long de
`pendingskirt 31 at the inside of which is provided
`a resilient inner skirt 62'which is adapted to seal
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`around the exterior of the neck oi.’v a bottle or
`similar container and which is prevented from
`excessive expansion by the skirt 6! adapted to
`con?ne the inner skirt between itself andthe
`exterior of the bottle neck. The closure member
`has a top 63 adapted'to extend horizontally across
`the top of the closure member and provide a
`means of mounting parts of the pump mechanism.
`Mounted centrally within the closure member
`is a part or element which may for convenience
`be described as an insert element 64. vThis ele
`ment is constructed with an outside wall 65 on
`the exterior of which is a ?ange 66 adapted to
`extend into a thickened portion 61 of the resilient
`sleeve 62 in order to con?ne the upper thickened
`portion of the sleeve between itself and the ad
`J'acent part of the closure member, there to
`anchor it in place.
`.
`The insert has a depending neck 68 in which
`is positioned a tube 69 which iszadapted to ex
`tend down into the interior of thebottle or con
`tainer upon which the pump may be mounted.
`On the upper side of the insert element 64 is
`a boss 10 surrounded by a space 10', the space
`being provided primarily to lighten the weight of
`the insert member. Centrally disposed in the boss
`is a depression ‘I I . At its lower end the depression
`terminates in a frusto-conical valve seat 12 in
`‘which a ball check 13 seats, the ball check being
`one. controlling ‘a suction port 14. Surrounding
`the depression ‘H at its interior wall there may be
`provided, if desired, a series of ?utes 15 for the
`purpose of guiding the ball check 13 during its
`movement up and down and also for providing
`between the ?utes su?icient space to permit easy
`?ow therethrough of relatively viscous ?uids.
`Adjacent the upper end of the depression ‘H
`is a widened space 16 into which liquid may ?ow
`from the depression ‘H and which for descriptive
`purposes may be considered as a part of a pump
`chamber 11. A wall ‘E8 of the insert is maintained
`within. a suitable aperture 19 in the top 6.3 where
`it may be cemented inplace.
`A housing 60 is adapted to contain the upper
`portions of the pump mechanism, the housing
`herein being shown constructed of an outer por
`tion or annular wall 8| and an inner portion or
`annular wall 82 forming a space 93 therebetween,
`which space is chie?y provided in order to lighten
`the weight of the section. The lower ends of the
`50
`outer and inner portions 8i and 82 are shown
`cemented or otherwise fastened to the top 63 of
`the closure member 60,.the inner portion being
`further centered around the exterior of the wall
`‘I8, thereby assuring proper location of the mech
`anisms of the pump.
`A discharge chamber 84 is formed by an inner
`wall 85, essentially annular and cylindrical, on
`I the inside face of which is provided a series of
`?utes B6 separated by a series of spaces 81. Be
`tween the inside faces of the ?utes 86 and a ball
`check 88 is a clearance in order to permit the ball
`to raise and lower freely within the ?uted area
`guided by the ?utes.
`.
`' Providing a cover or top closure for the dis
`charge chamber is a plate 89. Extending below
`the discharge chamber is .an extension 90 which
`may be described as being laterally recessed on
`opposite sides in order to permit the free ?ow of
`liquid through the recess portions of the exten
`sion, and upwardly through an inlet port 91 lead
`ing into the discharge chamber. The extension
`more particularly extends downwardly to a posi
`tion above the ball check 13 and serves as a stop
`75
`to limit upward motion of theball check "and
`
`to keep it within the con?nes of the depression
`‘H. The inner wall 85 may be retained in its
`proper position wherein the port BI is in axial
`alignment with the port 12 by a section 92 of- the
`material forming the inner wall and also on the
`' opposite side thereof by means of a spout 93. The
`spout has a discharge opening 94 at its inside end
`where it pierces the adjacent side of the inner
`wall 85. The spout 93 continues piercing the
`inner portion 82 of the housing continuing there
`through and through the outer portion 8| to the
`exterior.
`,
`The upper wall of the pump chamber 11 is pro
`vided with a resilient dome 95 which is retained
`within an upstanding rim 96 of the housing 89
`by means of a snap ring 91. In assembly the snap
`ring can be depressed sui?cient to slide a lower
`edge 98 of the dome 95 into position within the
`rim 96 and once in position the snap ring is per
`mitted to expand outwardly to hold the lower
`edge of the dome in place.
`The operation of the form of the device of
`Figures 3, 4 and 5 is substantially the same as
`that described in connection with Figure l. The
`dome 95 is pressed down and released in alter
`nate strokes which in turn respectively draw
`liquid through the tube 69 into the pump cham
`ber ‘i6 and then on the next stroke, which is a
`depression stroke for the dome 95, the liquid is
`forced upwardly through the inlet port 9i into
`the discharge chamber 84 and from there dis
`charged outwardly through the spout 9.3. Mean
`while the ball check 13 will be seated upon its
`seat 12.
`By reason of providing the ?utes 86 particu
`larly around the ball check 88, that ball check
`is prevented from falling into a position closing
`the discharge opening 94 of the spout 93. The
`flutes 86 on the right-hand side, as viewed in
`Figure 4, will prevent the ball from falling into
`position within the discharge opening even
`though the container with the pump mechanism
`mounted on it may be tilted far over on its side
`with the spout 93 pointing down. This is par
`ticularly useful when pumping heavy viscous
`liquids of the nature of tomato catsup and simi
`lar types of liquids.
`The ?utes 15 are also guides to maintain the
`ball check 13 in center position. In that position
`when suction is applied to lift a heavy liquid
`through the tube 69, the liquid will ?ow evenly
`on all sides of the ball check, thereby promoting
`a more ef?cient ?ow. It is also helpful in pre
`venting another common phenomena in the
`pumping of heavy liquids, namely, that of having
`the ball check, for example, lean toward one side
`of the port which it is designed to close, permit
`ting a greater accumulation of the heavy liquid
`on the opposite side of the port which in turn
`admits air past the ball check through the viscous
`liquid, the air traveling close to the metallic por
`tion of the ball check or the face of the valve
`seat. Before the ball check again closes admis~
`sion of air past the ball check diminishes to a
`considerable degree the effect of the pumping
`operation. When the ball is held in a center posi
`tion so that there is an equal mass of heavy liquid
`on all sides, the tendency of air bubbles to form
`is substantially minimized by this forcible center
`ing of the ball check. Even distribution of the
`liquid and air about the ball check greatly facili- '
`tates seating of the ball check.
`The ?uting of the interior of the discharge
`chamber is further bene?cial in assisting a com
`plete sealing of the .ball check on the vacuum
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`stroke. The ?utes‘ serve to steer the ball check
`88 rapidly to its seat, thereby promoting the full
`effect of the vacuum stroke, utilizing it for suck
`ing liquid into the pump chamber from the con
`tainer. The stop provided by the extension 90,
`being laterally recessed, admits free ?ow of the
`liquid in all directions and particularly upwardly
`past the exterior of the inner wall 82 so that it
`may partially fill a dome chamber 99 within the
`dome 95, this dome chamber being in fact a part
`of. the pump chamber.
`The structure described is particularly com
`pactisuilicient to permit it to be mounted in ‘the
`neck or" a container wherein the neck might be
`of relatively small diameter. The structural ar
`rangement, moreover, permits all of the pump
`mechanism to be located near the open end of
`the container, it being necessary to have only the
`tube $9 extend downwardly into the container.
`Under circumstances where the neck of the con
`tainer might be expressly small in diameter, the
`pump mechanism could be so constructed as to
`be mounted entirely above the upper rim or edge
`of the opening at the neck of the container with
`out in any way impairing the efficiency of opera
`tion of the device.
`The device in question is one particularly well
`adapted to fabrication of any one of a number
`of the commercially available plastics. Some
`portions of the device may, if desired, be made
`of transparent plastics and others of dyed or
`colored plastics in order to bring out a variety of
`eiiects. Employment of transparent plastics
`permits the passage of liquid through the device
`to be readily viewed. Another particular advan
`tage of the structure herein above described is
`that it permits of easy, partial disassembly suili
`cient to permit the device to be cleaned in the
`event that liquid substance may dry or solidify
`in the interior passages. By provision of the
`passages and chambers described, together with
`ball checks carefully guided to proper seating
`position, there has been produced a simple, effec
`tive manually operable pump which is readily
`adapted without substantial change to the pump
`ing of liquids of a great variety of viscosity.
`While I have herein shown and described my
`invention in what I have conceived to be the
`most practical and preferred embodiment, it is
`recognized that departures may be made there
`from within the scope of my invention, which is
`not to be limited to the details disclosed herein
`but is to be accorded the full scope of the claims
`so as to embrace any and all equivalent devices.
`Having described my invention, what I claim
`as new and desire to secure by Letters Patent is:
`1. A dispensing closure pump for a container
`comprising a cylindrical outer Wall forming a
`pump chamber, a concentric inner wall forming
`a substantially cylindrical discharge chamber and
`joined to the outer wall at spaced intervals leav~
`ing a passage therebetween, a discharge spout
`extending from the discharge chamber through
`the outer wall to the exterior, said discharge
`chamber having an inlet port directedtoward the .
`container, a valve seat around the port and ball
`check therefor, a dome of resilient material com
`prising an outer movable wall of the pump cham
`ber, a container ‘closure secured to said outer wall
`and forming an end wall for the pump chamber
`opposite from the dome, said closure having a
`suction port in axial alignment with ‘the inlet
`port, a valve seat in the suction port and a ball
`check on said seat, said inner wall having a por
`tion thereof spaced inwardly from the outer wall
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`and extending toward said suction port compris
`ing a limiting stop for. the ball check in said
`suction port.
`2. A dispensing closure pump for a container
`comprising an annular outer wall forming a
`pump chamber, a concentric annular inner wall
`forming a discharge chamber and joined to the
`outer wall at separated intervals leaving a pas
`sage therebetween, a discharge spout extending
`from the discharge chamber through the outer
`wall to the exterior, said discharge chamber
`having an inlet port directed away from said
`discharge spout, a free moving gravity seating
`ball check therefor and circumferentially dis
`posed ?utes on the wall of the discharge chamber
`spaced around a circle having a diameter greater
`than the diameter of the ball check and com
`prising a guide for the ball check, and a sheet
`of resilient material sealed to outwardly exposed
`portions of the outer wall comprising an outer
`variable pumping wall for the pump chamber, a
`container closure member secured to the outer
`wall on the side opposite said variable pumping
`wall having means adapted to i'it in sealed posi
`tion over an open end of the container, said
`closure member having a depression forming part
`of the pump chamber and a suction port in the
`depression, and a gravity seating ball check
`adapted to close said suction port, said inner
`wall having a laterally recessed portion extend
`ing toward said last identi?ed ball check adapted
`to limit inward movement of said last identi?ed
`ball check.
`3. A dispensing closure pump for a container
`comprising an annular outer wall forming a pump
`chamber, a concentric ‘annular inner wall form
`ing a discharge chamber and joined to the outer
`wall at separated intervals leaving a passage
`therebetween, a discharge spout extending from
`the discharge chamber through the outer wall to
`the exterior, said discharge chamber having an
`inlet port directed away from said discharge
`spout, a gravity seating ball check therefor and
`circumferentially disposed ?utes on the wall of
`the discharge chamber spaced around a circle
`having a diameter greater than the diameter of
`the ball check and comprising a guide for the
`ball check, and a dome of resilient material sealed
`to outwardly exposed portions of the outer wall
`comprising an outer variable pumping wall for
`the pump chamber, a container closure member
`secured to the outer wall on the side opposite
`said dome having means adapted to ?t in sealed
`position over an open end of the container, said
`closure member having a central depression
`forming part of the pump chamber and a suction
`port in axial alignment with said inlet port, a
`ball check adapted to close said suction port, said
`inner wall having a laterally recessed portion
`extending toward said last identi?ed ball check
`adapted to limit inward movement of said last
`identi?ed ball check.
`4. A dispensing closure pump for a container
`comprising a cylindrical double outer wall, the
`inner portion of said double outer wall forming a
`pump chamber, a concentric inner wall forming a
`substantially cylindrical discharge chamber and
`joined to the outer wall at separated intervals
`leaving a passage therebetween, a discharge
`spout extending from the discharge chamber
`through the double outer wall to the exterior, said
`discharge chamber having an inlet port directed
`away from said discharge spout, a gravity seat
`ing ball check for the inlet port and ?utes on the
`wall of the discharge chamber disposed circum~
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`ferentially at intervals of less than 90° about the
`center of the inlet port on a diametric spacing
`greater than the diameter of the ball check and
`comprising a guide for the ball check, a rim
`around the outer wall on a side thereof remote
`from the inlet port, and a dome of resilient ma
`terial sealed within the rim comprising an outer
`variable pumping wall for the pump chamber,
`a container closure member spanning and secured
`to both portions of the double outer wall on the
`side opposite said dome having means adapted
`to ?it in sealed position over an open end of the
`container and including a centrally disposed in
`sert element, said insert element having a central
`cylindrical depression forming part of the pump
`chamber, axially directed ?utes disposed at in
`tervals of less than 90° about the interior of said
`central cylindrical depression, a suction port in
`axial alignment with said inlet port, and a gravity
`closing ball check lying within the ?utes adapted
`to close said suction port, said inner wall having
`a laterally recessed portion extending toward said
`last identi?ed ball check adapted to limit inward
`movement of said last identi?ed ball check.
`5. A dispensing closure pump for a bottle com
`prising a cylindrical outer wall, a partition
`spanning said outer wall and forming with the
`outer wall a closure for the container, means
`
`10
`
`20
`
`2,690,278
`
`10
`forming a pump chamber within said outer wall ,
`and a valve intake port between the chamber and
`the interior of the bottle, means forming a dis
`charge chamber within said outer wall and a
`valve intake port and passage means between the
`pump chamber and said discharge chamber, and
`means forming a discharge port from the side
`of said discharge chamber, a gravity seating ball
`check in each chamber, said ball check in the
`discharge chamber having a position when both
`unseated and seated at least partially above the
`level of the bottom of the discharge passage, and
`a plurality of axially extending ?utes spaced at
`not less than 90° circumferentially about the in
`terior of the discharge chamber, certain of said
`?utes being spaced on opposite sides of the dis
`charge passage and extending inwardly to a loca
`tion removed from the entrance to said discharge
`passage whereby the ball check therein is held
`clear of the discharge passage. .
`
`References Cited in the ?le of this patent
`UNITED STATES PATENTS
`Name
`Date
`Hutton ___________ __ Nov. 1, 1932
`Maloney __________ __ Mar. 3, 1942
`Wilson ___________ __ Mar. 23, 1943
`
`Number
`1,886,022
`2,275,051
`2,314,676
`
`PETITIONER - THE CLOROX COMPANY - EXHIBIT 1014 - Page 6