EP0291251A2 - Flüssigkeitsspender - Google Patents

Flüssigkeitsspender Download PDF

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Publication number
EP0291251A2
EP0291251A2 EP88304156A EP88304156A EP0291251A2 EP 0291251 A2 EP0291251 A2 EP 0291251A2 EP 88304156 A EP88304156 A EP 88304156A EP 88304156 A EP88304156 A EP 88304156A EP 0291251 A2 EP0291251 A2 EP 0291251A2
Authority
EP
European Patent Office
Prior art keywords
liquid
valve
bore
chamber
inlet
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.)
Granted
Application number
EP88304156A
Other languages
English (en)
French (fr)
Other versions
EP0291251B1 (de
EP0291251A3 (en
Inventor
Kenneth John Wallace
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.)
Gaskell and Chambers Ltd
Original Assignee
Gaskell and Chambers Ltd
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 Gaskell and Chambers Ltd filed Critical Gaskell and Chambers Ltd
Priority to AT88304156T priority Critical patent/ATE80360T1/de
Publication of EP0291251A2 publication Critical patent/EP0291251A2/de
Publication of EP0291251A3 publication Critical patent/EP0291251A3/en
Application granted granted Critical
Publication of EP0291251B1 publication Critical patent/EP0291251B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B67D3/00—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes
    • B67D3/02—Liquid-dispensing valves having operating members arranged to be pressed upwards, e.g. by the rims of receptacles held below the delivery orifice

Definitions

  • This invention relates to a liquid dispenser and, more particularly, to a liquid dispenser for dispensing metered quantities of a liquid from an inverted bottle containing a said liquid.
  • Such liquid dispensers are well known and a popular range of such dispensers is available under the British Registered Trade Mark 'OPTIC' (No.470,373).
  • a liquid dispenser for dispensing metered aliquots of a liquid
  • which dispenser comprises a chamber having an inlet bore for liquid and an outlet bore for liquid, a valve in the chamber for controlling dispense of liquid from the dispenser, and valve operating means, characterised in that said valve has first and second valve stems for reception respectively within said inlet bore and within said outlet bore, said first valve stem being provided with sealing means for sealing said inlet bore, and first, second and third resilient sealing means are provided for sealing said outlet bore, the arrangement being such that during movement of the valve from a position in which it entirely seals the outlet bore to a position in which liquid within the chamber is free to flow through the outlet bore, the inlet bore is sealed before a said flow of liquid can occur.
  • the said valve is resiliently biassed into said position in which it entirely seals the outlet bore.
  • valve operating means is secured to, or is integral with, said valve and includes an internal bore communicating with said outlet bore of said chamber via a transverse bore in said valve for dispense of a said liquid.
  • sealing means on said first valve stem comprise primary resilient sealing means for sealing said inlet bore and with auxiliary resilient sealing means for sealing said inlet bore.
  • said first and second resilient sealing means are arranged to seal the outlet bore upstream of said transverse bore in said valve, said third resilient sealing means preventing outflow of liquid through the outlet bore other than through said transverse bore.
  • the liquid dispenser of the present invention will include an air inlet valve for permitting air to enter the chamber as liquid flows from the chamber.
  • said air inlet valve is actuated by a radially extending flange provided on said valve.
  • said chamber is made from any suitable transparent material, such as polystyrene.
  • Further components of the liquid dispenser of the present invention are preferably made from plastics mouldings, e.g. said valve may be made from acetal resin.
  • a liquid dispenser 1 comprises a chamber 2 for holding liquid, a valve 3 within the chamber for selectively admitting liquid into and releasing liquid from said chamber, and valve operating means 4.
  • the dispenser 1 is provided with a liquid inlet 5 adapted to be received within the neck of an inverted bottle (not shown) and sealed therewithin by means of an annular cork (Fig. 1).
  • the liquid inlet 5, which is longitudinally divided by a partition 6 to facilitate the admission of air into the bottle and to help prevent the formation in the bottle of a partial vacuum, is in communication with an inlet bore 7 of chamber 2.
  • the chamber 2 also includes an outlet bore 8.
  • Valve 3 is provided at its upper and lower ends with valve stems 9, 10 respectively cooperating with inlet bore 7 and with outlet bore 8 of the chamber 2.
  • Valve operating means 4 includes a pair of laterally extending members 11, 12 to which axial pressure can be applied, by direct manual pressure or via a glass held beneath the dispenser 1 and an axially extending outflow passage 13. Adjacent the inner end 14, of valve operating means 4 there is provided a transverse bore 15 communicating with outflow passage 13 and located so as to communicate also with outlet bore 8 of chamber 2. Said inner end 14 of valve operating means is secured to the valve stem 10 of valve 3 so that valve 3 moves unitarily with valve operating means 4.
  • valve stem 9 of valve 3 is provided with primary sealing means in the form an elastomeric silicone polymer O-ring 16 adapted to seal the inlet bore 7 of chamber 2 to prevent ingress of liquid into chamber 2, when valve stem 9 is moved into inlet bore 7.
  • Valve stem 9 is also provided with auxiliary sealing means in the form of a radially extending flange 17 having a radially extending planar sealing surface 18, for sealing with a flat annulus 19 provided on the ceiling or upper surface 19 a of chamber 2.
  • An air inlet valve 20 is provided in said surface 19 a , biassed to a closed state, at a position such that it can be opened by said radially extending flange 17 to admit air into chamber 2 to replace liquid passing from chamber 2 through bore 15 and outflow passage 13 of valve operating means 4.
  • Valve stem 10 is provided with a groove 21 in which is seated an elastomeric silicone polymer O-ring 22 for sealing outlet bore 8 of chamber 2.
  • the inner end 14 of valve operating means is provided with a pair of spaced elastomeric silicone polymer 0-rings 23, 24 located one on each side of transverse bore 15 of valve operating means 4 to seal with outlet bore 8 of chamber 2.
  • valve 3 and valve operating means 4 is biassed into a position in which outlet 8 of chamber 2 is closed, by means of a coil spring 25.
  • inlet bore 7 of chamber 2 is open and liquid can flow into chamber 2 and outlet bore 8 is closed.
  • valve 3 moves within chamber 2 and primary O-ring seal 16 seals inlet bore 7.
  • O-ring seal 23 is formed by sealing surface 18 sealing with annulus 19 of chamber 2 and liquid is prevented from leaving chamber 2 other than via bore 15 by means of O-ring 24.
  • Flange 17 acts upon air inlet valve 20 to allow ingress of air into chamber 2.
  • An inlet for admitting liquid into a chamber of a liquid measure and for permitting egress of air from within a said chamber is provided with two generally semi-circular or D-section conduits, said conduits being of substantially the same area and a said area being selected such that liquid flowing through a said conduit into a said chamber does not cause the formation of air bubbles in any liquid already within the chamber.
  • a suitable cross-sectional area for a said generally D-shaped conduit is 15 ⁇ 1.5 mm2.
  • FIG. 1 details of an embodiment of such an inlet are shown, said inlet comprising a circular cross-section tube of inside diameter 7mm, divided in half axially by a central partition of width 1.2mm.
  • Such an inlet has been found to be extremely effective in producing an air space-free liquid-filled volume within a said chamber of a liquid dispenser.
  • the liquid dispenser of the present invention provides a reliable, accurate and convenient means of dispensing metered aliquots of liquid. Run through of liquid is substantially prevented, whilst the dispenser is able to cope satisfactorily with pressure exerted upon the valve operating means off its central axis of movement.
  • the liquid chamber may be entirely transparent to allow for inspection of substantially the whole of the chamber contents.
  • a coil spring used to bias the valve into a rest position within the chamber can be kept out of contact with the liquid within the chamber, due to the presence of said third sealing means.
  • the inlet may be arranged to provide for the effective expulsion of air from within the chamber in a simple and satisfactory manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
EP88304156A 1987-05-12 1988-05-06 Flüssigkeitsspender Expired - Lifetime EP0291251B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88304156T ATE80360T1 (de) 1987-05-12 1988-05-06 Fluessigkeitsspender.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8711181 1987-05-12
GB8711181A GB2204854B (en) 1987-05-12 1987-05-12 Liquid dispenser

Publications (3)

Publication Number Publication Date
EP0291251A2 true EP0291251A2 (de) 1988-11-17
EP0291251A3 EP0291251A3 (en) 1989-06-07
EP0291251B1 EP0291251B1 (de) 1992-09-09

Family

ID=10617192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88304156A Expired - Lifetime EP0291251B1 (de) 1987-05-12 1988-05-06 Flüssigkeitsspender

Country Status (4)

Country Link
EP (1) EP0291251B1 (de)
AT (1) ATE80360T1 (de)
DE (1) DE3874409T2 (de)
GB (1) GB2204854B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002030808A1 (en) * 2000-10-10 2002-04-18 Rieke Corporation Fluid dispensing closure
GB2402926A (en) * 2003-06-06 2004-12-22 Mitchell & Cooper Ltd Improved bottle top pourer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB725784A (en) * 1953-04-01 1955-03-09 James Garrick Sutherland Irons Improved dispensing device
FR2406811A1 (fr) * 1977-10-21 1979-05-18 Moate David Appareil pour distribuer des doses de liquide
GB2173477A (en) * 1985-03-26 1986-10-15 Salesprint Temple Group Limite Inverted bottle liquid dispenser actuated by lost-motion coupling
GB2175279A (en) * 1985-05-09 1986-11-26 John Augustus Gibbs Improvements in or relating to liquid dispensing devices

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1577908A (en) * 1975-10-24 1980-10-29 Donaldson P Liquid dispensing apparatus
GB1577909A (en) * 1977-01-19 1980-10-29 Donaldson P Liquid dispensing apparatus
GB1577910A (en) * 1977-01-19 1980-10-29 Donaldson P Liquid dispensing apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB725784A (en) * 1953-04-01 1955-03-09 James Garrick Sutherland Irons Improved dispensing device
FR2406811A1 (fr) * 1977-10-21 1979-05-18 Moate David Appareil pour distribuer des doses de liquide
GB2173477A (en) * 1985-03-26 1986-10-15 Salesprint Temple Group Limite Inverted bottle liquid dispenser actuated by lost-motion coupling
GB2175279A (en) * 1985-05-09 1986-11-26 John Augustus Gibbs Improvements in or relating to liquid dispensing devices

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002030808A1 (en) * 2000-10-10 2002-04-18 Rieke Corporation Fluid dispensing closure
GB2402926A (en) * 2003-06-06 2004-12-22 Mitchell & Cooper Ltd Improved bottle top pourer
GB2402926B (en) * 2003-06-06 2006-02-08 Mitchell & Cooper Ltd Improved bottle top pourer

Also Published As

Publication number Publication date
GB8711181D0 (en) 1987-06-17
GB2204854B (en) 1991-02-13
GB2204854A (en) 1988-11-23
EP0291251B1 (de) 1992-09-09
EP0291251A3 (en) 1989-06-07
ATE80360T1 (de) 1992-09-15
DE3874409T2 (de) 1993-04-01
DE3874409D1 (de) 1992-10-15

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