EP0314233A1 - Pompe - Google Patents

Pompe Download PDF

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Publication number
EP0314233A1
EP0314233A1 EP88202300A EP88202300A EP0314233A1 EP 0314233 A1 EP0314233 A1 EP 0314233A1 EP 88202300 A EP88202300 A EP 88202300A EP 88202300 A EP88202300 A EP 88202300A EP 0314233 A1 EP0314233 A1 EP 0314233A1
Authority
EP
European Patent Office
Prior art keywords
liquid
valve
reservoir
conduit
collar
Prior art date
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.)
Withdrawn
Application number
EP88202300A
Other languages
German (de)
English (en)
Inventor
Gerrit Klaas Bunschoten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
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 Unilever PLC, Unilever NV filed Critical Unilever PLC
Publication of EP0314233A1 publication Critical patent/EP0314233A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
    • B67D7/0205—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants by manually operable pumping apparatus
    • 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
    • A47K5/06—Dispensers for soap
    • A47K5/12—Dispensers for soap for liquid or pasty soap
    • A47K5/1211—Dispensers for soap for liquid or pasty soap using pressure on soap, e.g. with piston
    • A47K5/1215—Dispensers for soap for liquid or pasty soap using pressure on soap, e.g. with piston applied by a peristaltic action

Definitions

  • the present invention is concerned with a pump of the kind for delivering aliquots of liquid from a reservoir, the pump comprising a conduit which comprises one end for receiving liquid from the reservoir, a second end provided with a valve through which the liquid is expelled, and a flexible portion between the first and second ends for being compressed by a compressing mechanism of a dispensing device, thereby to close the conduit at a pinch position in the region of said one end and for then being compressed by the mechanism, between the pinch position and the valve, to create excess pressure of liquid which is thus expelled through said valve.
  • Such pumps are often used integrally with a flexible bag filled with liquid soap, for placing in soap dispensers in washrooms etc.
  • valve In known pumps of this kind, the valve is of a conventional type often consisting of a spring-loaded ball which is urged against an orifice. Excess pressure in the conduit forces the ball away from the orifice against spring-bias.
  • a problem with this kind of valve is that it provides insufficient protection against entry of contaminant micro-organisms which can enter the reservoir via the conduit.
  • a subsidiary disadvantage is that there is also a tendency for such valves to leak when used with low viscosity liquids.
  • the valve comprises a flexible collar overlying an externally communicating channel member and in part sealed thereto to prevent liquid escape, the channel member comprising an inlet covered by the collar which is substantially sealed thereagainst until the excess liquid pressure is created. Protection against entry of micro-organisms is especially enhanced by providing a more tortuous path by means of the channel member being substantially cylindrical and comprising an axial channel, one end of which is a liquid outlet and the other end communicating with a first end of one or more radial channels, the second end or ends of said radial channels constituting said channel member inlet. It is especially convenient if the conduit is a tube which is flexible along substantially the whole of its length, the second end thereof consistuting the flexible collar of the valve, which collar is thereby integral with the remainder of the conduit.
  • the present invention further extends to such pumps when attached to a reservoir, e.g. filled with a liquid product such as a liquid soap.
  • a reservoir e.g. filled with a liquid product such as a liquid soap.
  • a reservoir comprises a flexible bag.
  • the invention encompasses such a pump attached to a reservoir, wherein the reservoir with pump is fitted to a dispensing device such that the compressing member thereof can act on the flexible portion of the conduit to deliver aliquots of liquid upon activation of said compressing member.
  • a dispenser (1) for liquid soap comprises a casing (3) having a front wall (5) and a back wall (7).
  • the dispenser also comprises a lever (9) pivotally mounted on hinge (11).
  • Attached to the lever is a compressing mechanism (13) which comprises a finger (15) pivotally mounted at end (16) by hinge (17) and attached at the other end (18) by a compression spring (19). At that other end, the finger also defines an elbow (21).
  • a collar (27) connects the reservoir to a pump (29).
  • the reservoir and pump are mounted in the dispenser by means of the collar being received in a slotted shelf (31) of the dispenser which thereby supports the reservoir.
  • the pump comprises a flexible tube (33) which at one end (34) is arranged to receive liquid from the reservoir through the collar and at the other end is provided with valve (36).
  • the valve (36) is a conventional ball valve comprising a chamber (37) in which is located a ball (39) which is urged by a compression spring (40) against an orifice (41).
  • the chamber is also provided with an outlet nozzle (43) through which the liquid soap is to be dispensed.
  • valve (36) is replaced by an alternative valve (57).
  • This valve comprises a channel member (59) inside which is an axial channel (61) connecting an outlet nozzle (63), through which the soap is expelled, and a radial channel (65) which has an inlet (67).
  • a collar (69) overlies the alternative valve at its upper end, and the tip of the flexible tube (33) constitutes a collar (69) of the valve, which in Fig.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Eye Examination Apparatus (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP88202300A 1987-10-26 1988-10-14 Pompe Withdrawn EP0314233A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8725030 1987-10-26
GB878725030A GB8725030D0 (en) 1987-10-26 1987-10-26 Pump

Publications (1)

Publication Number Publication Date
EP0314233A1 true EP0314233A1 (fr) 1989-05-03

Family

ID=10625887

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88202300A Withdrawn EP0314233A1 (fr) 1987-10-26 1988-10-14 Pompe

Country Status (5)

Country Link
EP (1) EP0314233A1 (fr)
GB (1) GB8725030D0 (fr)
NO (1) NO884746L (fr)
NZ (1) NZ226627A (fr)
ZA (1) ZA888022B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993005693A1 (fr) * 1991-09-13 1993-04-01 Appor Limited Reservoir pour distributeur
US8814005B2 (en) 2012-04-27 2014-08-26 Pibed Limited Foam dispenser

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1547874A (fr) * 1966-12-30 1968-11-29 Horton Cleaning Products Ltd Distributeur de produits liquides ou semi-liquides
EP0045830A2 (fr) * 1980-08-11 1982-02-17 Sani-Fresh International, Inc. Appareil pour la distribution de matériaux liquides ou granulaires ainsi qu'emballage pour matériaux granulaires destiné à être utilisé avec un tel appareil
EP0110686A1 (fr) * 1982-12-03 1984-06-13 Kimberly-Clark Limited Distributeur de savon liquide
US4667854A (en) * 1985-04-19 1987-05-26 Ecolab Inc. Liquid dispenser
EP0242253A1 (fr) * 1986-04-16 1987-10-21 Alpha Systemes Pompe distributrice jetable pour des produits liquides ou pâteux

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1547874A (fr) * 1966-12-30 1968-11-29 Horton Cleaning Products Ltd Distributeur de produits liquides ou semi-liquides
EP0045830A2 (fr) * 1980-08-11 1982-02-17 Sani-Fresh International, Inc. Appareil pour la distribution de matériaux liquides ou granulaires ainsi qu'emballage pour matériaux granulaires destiné à être utilisé avec un tel appareil
EP0110686A1 (fr) * 1982-12-03 1984-06-13 Kimberly-Clark Limited Distributeur de savon liquide
US4667854A (en) * 1985-04-19 1987-05-26 Ecolab Inc. Liquid dispenser
EP0242253A1 (fr) * 1986-04-16 1987-10-21 Alpha Systemes Pompe distributrice jetable pour des produits liquides ou pâteux

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993005693A1 (fr) * 1991-09-13 1993-04-01 Appor Limited Reservoir pour distributeur
US8814005B2 (en) 2012-04-27 2014-08-26 Pibed Limited Foam dispenser

Also Published As

Publication number Publication date
NO884746D0 (no) 1988-10-25
ZA888022B (en) 1990-06-27
NZ226627A (en) 1990-05-28
NO884746L (no) 1989-04-27
GB8725030D0 (en) 1987-12-02

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19890314

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17Q First examination report despatched

Effective date: 19910123

18W Application withdrawn

Withdrawal date: 19910115

R18W Application withdrawn (corrected)

Effective date: 19910115