WO2013055893A3 - Diaphragm foam pump - Google Patents

Diaphragm foam pump Download PDF

Info

Publication number
WO2013055893A3
WO2013055893A3 PCT/US2012/059715 US2012059715W WO2013055893A3 WO 2013055893 A3 WO2013055893 A3 WO 2013055893A3 US 2012059715 W US2012059715 W US 2012059715W WO 2013055893 A3 WO2013055893 A3 WO 2013055893A3
Authority
WO
WIPO (PCT)
Prior art keywords
air
diaphragm
foam pump
liquid
reservoir
Prior art date
Application number
PCT/US2012/059715
Other languages
French (fr)
Other versions
WO2013055893A4 (en
WO2013055893A2 (en
Inventor
Keith Allen Pelfrey
Original Assignee
Gojo Industries, Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gojo Industries, Inc. filed Critical Gojo Industries, Inc.
Publication of WO2013055893A2 publication Critical patent/WO2013055893A2/en
Publication of WO2013055893A3 publication Critical patent/WO2013055893A3/en
Publication of WO2013055893A4 publication Critical patent/WO2013055893A4/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K5/00—Holders or dispensers for soap, toothpaste, or the like
    • A47K5/14—Foam or lather making devices

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Reciprocating Pumps (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)

Abstract

A refill unit for a foam dispenser (100) including a liquid container (106) and a diaphragm foam pump (108) connected to the liquid container (106) and diaphragm foam pumps (108). The diaphragm foam pump (108) includes an elastomeric diaphragm (240) having an air piston bore (242) and a bellows. The air piston bore (242) forms at least a portion of an air chamber. A reservoir is located at least partially within the bellows that includes a liquid inlet. The diaphragm foam pump (108) includes a piston that forms a portion of the air chamber wherein the piston bore may be moved relative to the piston. Movement in a first direction causes air in an air chamber to be compressed and draws liquid into the reservoir and further movement in the same direction causes compressed air to flow into the reservoir where it mixes with the liquid and is expelled as a foam.
PCT/US2012/059715 2011-10-13 2012-10-11 Diaphragm foam pump for foam dispensers and refill units WO2013055893A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/272,443 US20130094983A1 (en) 2011-10-13 2011-10-13 Diaphragm foam pump for foam dispensers and refill units
US13/272,443 2011-10-13

Publications (3)

Publication Number Publication Date
WO2013055893A2 WO2013055893A2 (en) 2013-04-18
WO2013055893A3 true WO2013055893A3 (en) 2013-06-20
WO2013055893A4 WO2013055893A4 (en) 2013-08-08

Family

ID=47148917

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/059715 WO2013055893A2 (en) 2011-10-13 2012-10-11 Diaphragm foam pump for foam dispensers and refill units

Country Status (2)

Country Link
US (1) US20130094983A1 (en)
WO (1) WO2013055893A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8827119B2 (en) 2013-01-23 2014-09-09 Gojo Industries, Inc. Pull pumps, refill units and dispensers for pull pumps
EP3022706A4 (en) 2013-07-19 2018-03-07 Versus Technology, Inc. Automatic hygiene compliance assistance
US9648992B2 (en) * 2013-12-19 2017-05-16 Gojo Industries, Inc. Pumps with vents to vent inverted containers and refill units having non-collapsing containers
EP3110561B1 (en) 2014-02-24 2019-06-26 Gojo Industries, Inc. Vented non-collapsing containers, refillable refill containers, dispensers and refill units
CA2952616C (en) 2014-06-16 2020-11-10 Flow Control Llc. Diaphragm pump utilizing duckbill valves, multi-directional ports and flexible electrical connectivity
EP3085456B1 (en) * 2015-04-21 2018-09-26 Hübner GmbH & Co. KG Foam pump
WO2017050392A1 (en) 2015-09-25 2017-03-30 Sca Hygiene Products Ab Pump with a polymer spring
AU2015410275A1 (en) 2015-09-25 2018-04-26 Essity Hygiene And Health Aktiebolag Pump for dispensing fluids
CN106618319A (en) * 2016-11-28 2017-05-10 张文雅 Micro soap liquid pump
US10667655B2 (en) * 2017-02-22 2020-06-02 Gojo Industries, Inc. Dispensers, refill units and pumps having vacuum actuated anti-drip mechanisms
WO2018177519A1 (en) 2017-03-29 2018-10-04 Essity Hygiene And Health Aktiebolag Plastomer spring with captive valve
EP4149335A1 (en) * 2020-05-14 2023-03-22 Gojo Industries, Inc. Dispensers and dispenser systems for securely controlling a plurality of dose sizes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5518147A (en) * 1994-03-01 1996-05-21 The Procter & Gamble Company Collapsible pump chamber having predetermined collapsing pattern
EP2080464A2 (en) * 2008-01-18 2009-07-22 GOJO Industries, Inc. Squeeze action foam pump
DE202011100895U1 (en) * 2011-03-16 2011-08-02 Hübner GmbH Pumping device for a container for liquid, pasty or foamable skin cleansing and care preparations

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5518147A (en) * 1994-03-01 1996-05-21 The Procter & Gamble Company Collapsible pump chamber having predetermined collapsing pattern
EP2080464A2 (en) * 2008-01-18 2009-07-22 GOJO Industries, Inc. Squeeze action foam pump
DE202011100895U1 (en) * 2011-03-16 2011-08-02 Hübner GmbH Pumping device for a container for liquid, pasty or foamable skin cleansing and care preparations

Also Published As

Publication number Publication date
US20130094983A1 (en) 2013-04-18
WO2013055893A4 (en) 2013-08-08
WO2013055893A2 (en) 2013-04-18

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