US2855127A - Dispensing pump and check valve therefor - Google Patents

Dispensing pump and check valve therefor Download PDF

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Publication number
US2855127A
US2855127A US56070156A US2855127A US 2855127 A US2855127 A US 2855127A US 56070156 A US56070156 A US 56070156A US 2855127 A US2855127 A US 2855127A
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United States
Prior art keywords
valve
passage
cavity
check valve
retaining
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Louis L Lerner
Safianoff Albert
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Gillette Co LLC
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Gillette Co LLC
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Priority to US56070156 priority Critical patent/US2855127A/en
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Publication of US2855127A publication Critical patent/US2855127A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus
    • B05B11/30Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus the flow being effected by a pump
    • B05B11/3028Pumps having a pumping chamber with a deformable wall
    • B05B11/3032Pumps having a pumping chamber with a deformable wall actuated without substantial movement of the nozzle in the direction of the pressure stroke
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009Special features
    • F04B43/0054Special features particularities of the flexible members
    • F04B43/0063Special features particularities of the flexible members bell-shaped flexible members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10Valves; Arrangement of valves
    • F04B53/1002Ball valves
    • F04B53/101Ball valves having means for limiting the opening height
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/7904Reciprocating valves
    • Y10T137/7908Weight biased
    • Y10T137/7909Valve body is the weight
    • Y10T137/791Ball valves

Description

Oct. 7, 1958 l.. L .LERNER ETAL 2,855,127

DISPENSING PUMP AND CHECK VALVE THEREFOR Filed Jan. 25. 195e y United States Patent() DISPENSING PUMP AND CHECK VALVE THEREFOR Louis L. Lerner and Albert Salanolf, Chicago, Ill., assignors to The Gillette Company, Boston, Mass., a corporation of Delaware Application January 23, 1956, Serial No. 560,701

3 Claims. (Cl. 222-207) This invention relates 'to a pump for dispensing liquids of nely divided, readily llowable, `solid materials such as powders or the like and pertains more specically to a pump for dispensing liquids adapted to be mounted on a container such as a bottle, can or the like.

One object of the invention is to provide a dispensing device `of simplied and inexpensive construction which is readily adapted to handle liquids of a wide range of viscosities as well as readily flowable particulate materials.

Another object is to provide such a pump having a unitary, one-piece, molded plastic body member.

Still another object is to provide 'an improved checkvalve construction adapted for use in pumps of the type described.

Other and further objects will be apparent from the drawings and from the description which follows:

In the drawings:

Fig. l is a View in elevation of one embodiment of the invention;

Fig. 2 is a top plan view of the embodiment shown in Fig. 1;

Fig. 3 is a view in vertical section along the -line 3-3 of Fig. 2;

iFig. 4 is a bottom plan Iview of the embodiment shown in Fig. l;

Fig. 5 is a view in vertical section on an enlarged scale of the outlet valve portion of the device; and

Fig. 6 is a View in vertical section on an enlarged scale of the inlet valve portion of the device.

As `shown in the drawings, the pump, which is designated generally by the numeral 10, comprises a unitary one-piece body member 12 molded of a flexible, resilient plastic material such as natural or synthetic rubber, polyethylene, plasticized vinyl resin, or the like, polyethylene being preferred. Body member 12 is provided with a depending annular skirt 14 having a screw thread 16 molded on its inner face to facilitate mounting of the pump on the neck of a bottle 18, but it will be understood that any other suitable mounting means maybe provided.

Body member 12 is provided with 'a central cavity 20 which is `open to the atmosphere at the top. Inlet passage 22 and outlet passage 24 are molded integrally with body member 12 and communicate with central cavi-ty 20. An auxiliary inlet tube 27 of Sullicient length to extend close to the bottom of container 18 may be formed separately from body member 12 and frictionally secured within inlet passage 22. The tube may be fabricated at any suitable material such as glass, metal, plastic, or the like. Molded within each passage 22, 24 is a generally conical valve seat 26, 2S, as best seen in Figs. 5 and 6, each 1valve seat being provided with a plurality of circular circumferential inwardly projecting ribs 30, 30 formed of the same flexible, resilient plastic material as body member 12. Each rib 30 is of generally triangular cross-sectional configuration with one face extending parallel to the axis of the valve seat and passage, the other face extending perpendicular thereto with the two faces meeting in a sharp edge. Although the precise number of such ribs is not critical, best results have been obtained when 'at least -three such ribs or steps are present. Also molded in the wall of each passageway are a plurality of projecting nibs 32, 32 which serve as yieldable valve retaining members or stops for retaining generally spherical rigid valve members 33, 34 in proximity to the -Valve seat. Valve members 33, 34 may conveniently take the form of ball bearings made of ysteel or other metal. A-s shown best in Fig. 4, the bot-tom of body member 12 is provided with a plurality of spaced projecting flat-faced lugs 35 in position to engage the upper lmargin of container 18 when the dispenser is mounted thereon, the spaces between adjacent lugs serving as vents for admitting air to the container as the contents are pumped out.

A separate molded dome 36 lof natural or synthetic rubber or other ysimilar resilient elastic material is provided to close the open top of cavity 20 and form a chamber therewith, the lower marginal portion of dome 36 being frictionally seated in an annular groove 38 molded in the wall of body member 12 encircling cavity 20, the width of groove 38 being slightly less than the thickness of dome 36. An upstanding flange 40 provided with an inwardly directed lip 42 is also molded integrally with body member 12 and serves to assist in retaining dome 36 in position.

In assembling the device valve members 33, 34 are forced into passages 22, 24 past nibs 32, 32 to the desired position in close proximity to their respective Valve seats. Dome 36 is mounted in groove 38 and auxiliary inlet tube 26 is forced into the lower end of inlet passageway 22 where it is frictionally retained. The device is then ready for operation and may be mounted on any suitable container. It will be noted tha-t because of the stepped conical configuration of valve seats 26, 28 valve members 33, 34 need not be perfectly spherical. The yielding resilient nature of the ribs 30, 30 enables each valve .seat to laccommodate slightly out-of-round valve members. This makes it possible to use inexpensive ball bearings as the valve members instead of the much more expensive precision-ground ball bearings which are substantially perfect spheres.

In operating the device dome 36 is compressed with a finger so as to decrease the -volume of the `chamber it en- -closes, forcing any material within the chamber through outlet 24 while the check valve in the inlet passage 22 is closed. Upon release of the finger, pressure dome 36 regains its original rounded coniguration, causing the check valve in outlet passage 24 to close and drawing liquid through inlet passageway 22 past its respective check valve into the chamber formed by cavity 20. It will be noted that the yieldable valve retaining nibs 32, 32 in outlet passageway 24 hold Valve member 34 in close proximity -to Valve seat Z8, so that upon release of the pressure on dome 36 valve member 34 will be drawn into closed position by the initial inward ow of air through outlet 24. The nibs 32 in inlet passageway 22, on the other hand, are spaced farther away from their respective valve seat 26 to permit greater displacement of the valve member to ensure rapid lling of the valve chamber. inasmuch as the dispenser is normally employed in Va more or less upright position, inlet valve 34 will be urged into seating position -by gravity as soon as the upward ow of material through inlet passage 22 has stopped.

Although specic embodiments of the invention have been described herein, it is n-ot intended to limit the invention solely thereto, but to include all of the obvious variations and modifications -within the spirit and scope of the appended claims.

We claim:

l. A liquid-dispensing pump comprising an integral, one-piece, molded, ilexible, resilient, plastic body member of generally tubular conguration, one end of said plastic body member being arranged for mounting on a container of liquid to be dispensed7 said body member including a transverse wall forming a cavity at the other end of `said body member, a groove encircling said cavity at said second end, a resilient, flexible, elastic dome having its margin seated in said groove to close said cavity, an upstanding flange integral with said body member encircling said groove having an inwardly extending lip for retaining said dome in position, an outlet passage extending through a side of said body member from said cavity and an inlet passage extending through said transverse wall to said cavity, each said passage having a stepped conical check-valve seat integral with said body member, a generally spherical valve member in each passage movable to and from seating position, radially inwardly projecting retaining members integral with each passage spaced from each valve seat for retaining each said valve member adjacent its respective seat, each retaining member being yieldable to permit each said valve member to be forced through said passage past said retaining members into position adjacent its valve seat but preventing passage of said valve member under normal operating conditions, and an inlet tube attached to said inlet passage extending to a position adjacent the bottom of said container 'when said pump is mounted thereon.

2. A liquiddispensing pump comprising an integral, one-piece, molded plastic body member having a hollow interior open at opposite ends, one open end of said body member being arranged for mounting on a container of liquid to be dispensed, said body member including a transverse wall forming a cavity at the other end of said body member, a groove surrounding said cavity at said second end, a resilient, flexible, elastic dome having its margin seated in said groove to close said cavity, an upstanding ange integral with said body member surrounding said groove having an inwardly extending lip for retaining said dome in position, an outlet passage extending from said cavity through a side of said body member and an inlet passage extending to said cavity through said transverse wall, each said passage having a check-valve seat integral with said body member, a valve member in each passage movable to and from seating position, and radially inwardly projecting retaining members integral with each passage spaced from each valve seat for retaining each said valve member adjacent its respective seat, each retaining member permitting each valve member to be forced through said passage past said retaining member into position adjacent its valve seat but preventing passage of said valve member under normal operating conditions.

3. A pump as dened in claim 2 including an inlet tube extending from said inlet passage to `a position adjacent the bottom of the container when said pump is mounted thereon.

References Cited in the tile of this patent UNITED STATES PATENTS 2,005,299 Penrod .lune 18, 1935 2,044,629 Parker June 16, 1936 2,250,813 Rea July 29, 1941 2,275,051 Maloney Mar. 3, 1942 2,275,972 Maloney Mar. lO, 1942 2,322,139 Kaelin June 15, 1942 2,690,278 Bacheller Sept. 28, 1954 FOREIGN PATENTS 340,428 Germany Sept. l2, 1921

US56070156 1956-01-23 1956-01-23 Dispensing pump and check valve therefor Expired - Lifetime US2855127A (en)

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US56070156 US2855127A (en) 1956-01-23 1956-01-23 Dispensing pump and check valve therefor
GB15957A GB819150A (en) 1956-01-23 1957-01-02 Improvements in or relating to pumps for dispensing liquids or finely divided solid materials

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Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979236A (en) * 1958-02-10 1961-04-11 Fahr Morris Dispenser caps for fluid containers
US3029001A (en) * 1959-12-28 1962-04-10 Matthew B Blish Flexible dispensing closure for rigid containers
US3105618A (en) * 1960-09-21 1963-10-01 Beckman Instruments Inc Micro pipette fluid distributor
US3162333A (en) * 1959-07-30 1964-12-22 Guild Molders Multiple-part plastic pump for liquids
US3172561A (en) * 1962-09-06 1965-03-09 Benjamin F Edwards Child's feeding apparatus
US3185174A (en) * 1963-04-18 1965-05-25 Illinois Tool Works Direct response valve
US3207374A (en) * 1963-11-14 1965-09-21 Burroughs Wellcome Co Dispenser
US3220611A (en) * 1964-08-14 1965-11-30 Waldo H Zander Wall mounted bracket and dispenser for collapsible tube
US3268216A (en) * 1965-05-18 1966-08-23 Tillotson Mfg Co Charge forming device for internal combustion engines
US3387625A (en) * 1965-06-24 1968-06-11 W L Molding Company Check valve
US3411648A (en) * 1966-10-06 1968-11-19 William C. Tichy Anticolic nursing device
US3771556A (en) * 1971-12-27 1973-11-13 Vernay Laboratories One way check valve
US3779429A (en) * 1971-12-17 1973-12-18 Federal Tool & Plastics A Divi Plastic dispensing nozzle with a ball valve
WO1983001431A1 (en) * 1981-10-26 1983-04-28 Philip Meshberg Two-compartment dispenser
WO1986004984A1 (en) * 1985-02-26 1986-08-28 Emson Research Incorporated Apparatus for dispensing products from a self-sealing dispenser
US5095940A (en) * 1989-12-22 1992-03-17 Behr-Thomson Dehnstoffregler Gmbh & Co. Thermostatic valve
US5890624A (en) * 1994-07-25 1999-04-06 Sprayex L.L.C. Rechargeable dispensers
US5944223A (en) * 1994-07-25 1999-08-31 Sprayex, Inc. Rechargeable dispensers
US20050092373A1 (en) * 2003-10-30 2005-05-05 Schafer Christopher E. Fluid retaining apparatus with ball valve
US20060124180A1 (en) * 1999-09-29 2006-06-15 Agilent Technologies, Inc. Valve for liquid separation
US20080069628A1 (en) * 2004-03-10 2008-03-20 Poly-D, Llc Method of dispensing a fluid with metered delivery
WO2008073875A2 (en) * 2006-12-11 2008-06-19 Poly-D, Llc Dispensing stand-up pouch
US20080181714A1 (en) * 2006-12-11 2008-07-31 Poly-D, Llc Sponge device with urethane and cellulose material combination construction
US20080190961A1 (en) * 2007-02-09 2008-08-14 Poly-D, Llc Metered dosing container with independently deformable internal bladder
US20080190958A1 (en) * 2007-02-13 2008-08-14 Poly-D, Llc Container having a secondary reservoir for metered dosing of additives
US20080193198A1 (en) * 2007-02-09 2008-08-14 Poly-D, Llc Metering dispensing flexible pouch with spray nozzle
US20080205972A1 (en) * 2007-02-23 2008-08-28 Poly-D, Llc Surface cleaner with removable wand
US20080203114A1 (en) * 2007-02-23 2008-08-28 Poly-D, Llc Fluid dispenser with docking station
US20080205970A1 (en) * 2007-02-23 2008-08-28 Poly-D, Llc Toothbrush with integrated toothpaste delivery
US20080203110A1 (en) * 2007-02-23 2008-08-28 Poly-D, Llc Dual chambered fluid dispenser with mixing chamber
US20080205965A1 (en) * 2007-02-23 2008-08-28 Poly-D, Llc Surface scrubber with rotating pad
US20080223875A1 (en) * 2007-03-14 2008-09-18 Poly-D, Llc Dispenser with dual pump system
US20080237262A1 (en) * 2007-03-26 2008-10-02 Poly-D, Llc Hanging liquid dispenser
US20080264972A1 (en) * 2007-04-26 2008-10-30 Poly-D, Llc Metering dispensing system with improved valving to prevent accidental dispensing of liquid therefrom
US20080264973A1 (en) * 2007-04-26 2008-10-30 Poly-D, Llc Metering dispensing system with improved valving to prevent accidental dispensing of liquid therefrom
US20090183371A1 (en) * 2008-01-23 2009-07-23 Mileti Robert J Razor With Integrated Dispensing of Shaving Treatments
US20090263176A1 (en) * 2008-04-21 2009-10-22 Mileti Robert J Replaceable Cartridge Dispenser Assembly
US20090301572A1 (en) * 2006-03-22 2009-12-10 Vitop Moulding S.R.L. Liquid dispensing tap, in particular for liquids with higher density
US7997047B1 (en) * 2008-03-04 2011-08-16 Widgeteer, Inc. Air evacuation assembly for sealable plastic bags
US8132696B2 (en) 2004-03-10 2012-03-13 Sealed Air Corporation (Us) Metering dispensing system with one-piece pump assembly
US20140339266A1 (en) * 2013-04-18 2014-11-20 Pwe Llc Metered fluid dispensing system
US20150034195A1 (en) * 2013-08-02 2015-02-05 Jtekt Corporation Valve unit

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE340428C (en) * 1920-02-01 1921-09-12 Charles Bouche Dipl Ing ball valve
US2005299A (en) * 1930-04-29 1935-06-18 Penrod John Valve assembly for well pumps
US2044629A (en) * 1934-06-04 1936-06-16 Arthur L Parker Check valve for fluid pressure pipes
US2250813A (en) * 1937-08-17 1941-07-29 Philip M Rea Means for hermetically sealing fluid pressure
US2275051A (en) * 1938-09-29 1942-03-03 Brass Goods Mfg Co Dispensing device
US2275972A (en) * 1939-05-10 1942-03-10 Brass Goods Mfg Co Dispensing device
US2322139A (en) * 1942-02-18 1943-06-15 Frederick C Kingston Safety valve
US2690278A (en) * 1952-05-24 1954-09-28 Bacheller D Flavius Dispensing pump for small containers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE340428C (en) * 1920-02-01 1921-09-12 Charles Bouche Dipl Ing ball valve
US2005299A (en) * 1930-04-29 1935-06-18 Penrod John Valve assembly for well pumps
US2044629A (en) * 1934-06-04 1936-06-16 Arthur L Parker Check valve for fluid pressure pipes
US2250813A (en) * 1937-08-17 1941-07-29 Philip M Rea Means for hermetically sealing fluid pressure
US2275051A (en) * 1938-09-29 1942-03-03 Brass Goods Mfg Co Dispensing device
US2275972A (en) * 1939-05-10 1942-03-10 Brass Goods Mfg Co Dispensing device
US2322139A (en) * 1942-02-18 1943-06-15 Frederick C Kingston Safety valve
US2690278A (en) * 1952-05-24 1954-09-28 Bacheller D Flavius Dispensing pump for small containers

Cited By (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979236A (en) * 1958-02-10 1961-04-11 Fahr Morris Dispenser caps for fluid containers
US3162333A (en) * 1959-07-30 1964-12-22 Guild Molders Multiple-part plastic pump for liquids
US3029001A (en) * 1959-12-28 1962-04-10 Matthew B Blish Flexible dispensing closure for rigid containers
US3105618A (en) * 1960-09-21 1963-10-01 Beckman Instruments Inc Micro pipette fluid distributor
US3172561A (en) * 1962-09-06 1965-03-09 Benjamin F Edwards Child's feeding apparatus
US3185174A (en) * 1963-04-18 1965-05-25 Illinois Tool Works Direct response valve
US3207374A (en) * 1963-11-14 1965-09-21 Burroughs Wellcome Co Dispenser
US3220611A (en) * 1964-08-14 1965-11-30 Waldo H Zander Wall mounted bracket and dispenser for collapsible tube
US3268216A (en) * 1965-05-18 1966-08-23 Tillotson Mfg Co Charge forming device for internal combustion engines
US3387625A (en) * 1965-06-24 1968-06-11 W L Molding Company Check valve
US3411648A (en) * 1966-10-06 1968-11-19 William C. Tichy Anticolic nursing device
US3779429A (en) * 1971-12-17 1973-12-18 Federal Tool & Plastics A Divi Plastic dispensing nozzle with a ball valve
US3771556A (en) * 1971-12-27 1973-11-13 Vernay Laboratories One way check valve
WO1983001431A1 (en) * 1981-10-26 1983-04-28 Philip Meshberg Two-compartment dispenser
US4457454A (en) * 1981-10-26 1984-07-03 Philip Meshberg Two-compartment dispenser
WO1986004984A1 (en) * 1985-02-26 1986-08-28 Emson Research Incorporated Apparatus for dispensing products from a self-sealing dispenser
US5095940A (en) * 1989-12-22 1992-03-17 Behr-Thomson Dehnstoffregler Gmbh & Co. Thermostatic valve
US5890624A (en) * 1994-07-25 1999-04-06 Sprayex L.L.C. Rechargeable dispensers
US5944223A (en) * 1994-07-25 1999-08-31 Sprayex, Inc. Rechargeable dispensers
US20060124180A1 (en) * 1999-09-29 2006-06-15 Agilent Technologies, Inc. Valve for liquid separation
US8127789B2 (en) * 2003-10-30 2012-03-06 ARK Therapeutic Services, Inc. Fluid retaining apparatus with ball valve
US20050092373A1 (en) * 2003-10-30 2005-05-05 Schafer Christopher E. Fluid retaining apparatus with ball valve
US20080069628A1 (en) * 2004-03-10 2008-03-20 Poly-D, Llc Method of dispensing a fluid with metered delivery
US8123073B2 (en) 2004-03-10 2012-02-28 Sealed Air Corporation (Us) Method of dispensing a fluid with metered delivery
US8132696B2 (en) 2004-03-10 2012-03-13 Sealed Air Corporation (Us) Metering dispensing system with one-piece pump assembly
US20100147892A1 (en) * 2004-03-10 2010-06-17 Poly-D, Llc Fluid Dispensing Device With Metered Delivery
US8387833B2 (en) 2004-03-10 2013-03-05 Sealed Air Corporation (Us) Fluid dispensing device with metered delivery
US20090301572A1 (en) * 2006-03-22 2009-12-10 Vitop Moulding S.R.L. Liquid dispensing tap, in particular for liquids with higher density
US8402999B2 (en) 2006-03-22 2013-03-26 Vitop Moulding S.R.L. Liquid dispensing tap, in particular for liquids with higher density
WO2008073875A3 (en) * 2006-12-11 2008-08-07 Poly D Llc Dispensing stand-up pouch
US20080181714A1 (en) * 2006-12-11 2008-07-31 Poly-D, Llc Sponge device with urethane and cellulose material combination construction
US20080149666A1 (en) * 2006-12-11 2008-06-26 Poly-D, Llc Dispensing stand-up pouch
WO2008073875A2 (en) * 2006-12-11 2008-06-19 Poly-D, Llc Dispensing stand-up pouch
US8128303B2 (en) 2007-02-09 2012-03-06 Sealed Air Corporation (Us) Metering dispensing flexible pouch with spray nozzle
US20080193198A1 (en) * 2007-02-09 2008-08-14 Poly-D, Llc Metering dispensing flexible pouch with spray nozzle
US20080190961A1 (en) * 2007-02-09 2008-08-14 Poly-D, Llc Metered dosing container with independently deformable internal bladder
US20080203115A1 (en) * 2007-02-09 2008-08-28 Poly-D, Llc Bottle for containing and dispensing liquids
US20080190958A1 (en) * 2007-02-13 2008-08-14 Poly-D, Llc Container having a secondary reservoir for metered dosing of additives
US8136700B2 (en) 2007-02-23 2012-03-20 Sealed Air Corporation (Us) Dual chambered fluid dispenser with mixing chamber
US20080205965A1 (en) * 2007-02-23 2008-08-28 Poly-D, Llc Surface scrubber with rotating pad
US20080205972A1 (en) * 2007-02-23 2008-08-28 Poly-D, Llc Surface cleaner with removable wand
US20080203110A1 (en) * 2007-02-23 2008-08-28 Poly-D, Llc Dual chambered fluid dispenser with mixing chamber
US20080205970A1 (en) * 2007-02-23 2008-08-28 Poly-D, Llc Toothbrush with integrated toothpaste delivery
US8167510B2 (en) 2007-02-23 2012-05-01 Sealed Air Corporation (Us) Surface scrubber with rotating pad
US8152400B2 (en) 2007-02-23 2012-04-10 Sealed Air Corporation (Us) Surface cleaner with removable wand
US20080203114A1 (en) * 2007-02-23 2008-08-28 Poly-D, Llc Fluid dispenser with docking station
US8083103B2 (en) 2007-03-14 2011-12-27 Sealed Air Corporation (Us) Dispenser with dual pump system
US20080223875A1 (en) * 2007-03-14 2008-09-18 Poly-D, Llc Dispenser with dual pump system
US20080237262A1 (en) * 2007-03-26 2008-10-02 Poly-D, Llc Hanging liquid dispenser
US8292120B2 (en) 2007-03-26 2012-10-23 Sealed Air Corporation (Us) Hanging liquid dispenser
US8061566B2 (en) 2007-04-26 2011-11-22 Sealed Air Corporation (Us) Metering dispensing system with improved valving to prevent accidental dispensing of liquid therefrom
US7997454B2 (en) 2007-04-26 2011-08-16 Sealed Air Corporation (Us) Metering dispensing system with improved valving to prevent accidental dispensing of liquid therefrom
US20080264973A1 (en) * 2007-04-26 2008-10-30 Poly-D, Llc Metering dispensing system with improved valving to prevent accidental dispensing of liquid therefrom
US20080264972A1 (en) * 2007-04-26 2008-10-30 Poly-D, Llc Metering dispensing system with improved valving to prevent accidental dispensing of liquid therefrom
US20090183371A1 (en) * 2008-01-23 2009-07-23 Mileti Robert J Razor With Integrated Dispensing of Shaving Treatments
US7997047B1 (en) * 2008-03-04 2011-08-16 Widgeteer, Inc. Air evacuation assembly for sealable plastic bags
US20090263176A1 (en) * 2008-04-21 2009-10-22 Mileti Robert J Replaceable Cartridge Dispenser Assembly
US20140339266A1 (en) * 2013-04-18 2014-11-20 Pwe Llc Metered fluid dispensing system
US10160587B2 (en) * 2013-04-18 2018-12-25 Mhsco Holdings Llc Metered fluid dispensing system
US20150034195A1 (en) * 2013-08-02 2015-02-05 Jtekt Corporation Valve unit
US9568114B2 (en) * 2013-08-02 2017-02-14 Jtekt Corporation Valve unit comprising a check valve device

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Publication number Publication date
GB819150A (en) 1959-08-26

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