WO1994013408A1 - Relief valve - Google Patents

Relief valve Download PDF

Info

Publication number
WO1994013408A1
WO1994013408A1 PCT/GB1993/002563 GB9302563W WO9413408A1 WO 1994013408 A1 WO1994013408 A1 WO 1994013408A1 GB 9302563 W GB9302563 W GB 9302563W WO 9413408 A1 WO9413408 A1 WO 9413408A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
valve member
container
support body
spigot
Prior art date
Application number
PCT/GB1993/002563
Other languages
French (fr)
Inventor
Robert Higginson
Toshiyuki Misaki
Original Assignee
Canyon Europe 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 Canyon Europe Ltd. filed Critical Canyon Europe Ltd.
Priority to AU57052/94A priority Critical patent/AU5705294A/en
Publication of WO1994013408A1 publication Critical patent/WO1994013408A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
    • F16K24/06—Devices, e.g. valves, for venting or aerating enclosures for aerating only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • B05B11/00442—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means the means being actuated by the difference between the atmospheric pressure and the pressure inside the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1009—Piston pumps actuated by a lever
    • B05B11/1011—Piston pumps actuated by a lever without substantial movement of the nozzle in the direction of the pressure stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1077—Springs characterised by a particular shape or material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means

Definitions

  • This invention relates to a valve member and is more particularly concerned with a valve member associated with a container for holding a fluid medium with a manually operated pump member forming part of the container and arranged to provide a means for ejecting the fluid from the container as a spray or jet.
  • a closure or cap member for a container which includes a manually operable pump means whereby fluid may be drawn from the container and ejected from a nozzle as a spray or jet, characterised in that the cap has a valve means with associated passageway whereby partial vacuum within the container is relieved.
  • a closure cap member for a container having a tube which, in use, extends into the container, a manually operated pump means with a trigger device which may be actuated to draw fluid up the tube from the container and to discharge same from a nozzle, characterised in that the cap has an externally opening passageway normally closed by a valve member and arranged to that any partial vacuum occurring within the container as liquid is drawn up the tube is relieved by ingress of air through said passageway through part of said valve member moving away from the passageway.
  • valve member for use with a fluid container having associated therewith a manually operable pump means serving to eject fluid from the container in the form of a jet or spray, characterised in that the valve member comprises an annular valve support body and a movable valve coaxial therewith and connected to said support body by a plurality of flexible webs whereby the valve is axial ly displaceable with respect to the support body.
  • valve member in a preferred construction of valve member the support body comprises a cylindrical housing coaxial ly embracing the valve which has an end thereof tapered which co-operates with a fixed valve seat located within
  • the webs may comprise a number of arms which extend in an outwardly and circumferential ly progressing direction from the valve member towards the valve support body.
  • the valve support body has at one end an inwardly directed formation to engage a complementary annular recess on a spigot including an axial orifice with a tapered mouth forming a fixed valve seat, the movable valve carried by the valve support body having a nose portion to correspond with the valve seat which nose portion sealingly engages said seat.
  • a closure cap for a container incorporating internally a valve means as hereinbefore referred to.
  • a manually operable pump unit for a fluid container said pump unit incorporating at least one valve means as hereinbefore referred to.
  • SUBSTITUTE SHEET device for use with a fluid container.
  • FIG. 1 shows a valve means in accordance with this invention in cross section on A-A of Figure 2,
  • Figure 2 shows the valve means of Figure 1 in plan view
  • Figure 3 shows a manually operable pump mechanism for use with a fluid container and incorporating the valve means
  • Figure 4 shows a modified pump mechanism
  • valve means having an annular and cylindrical valve support body 2 with an annular projecting rim 3 on the upper internal peripheral surface.
  • the rim 3 engages a corresponding annular recess in a spigot 4 which includes a central axial passageway 42 opening into in a tapered conical valve seat indicated in broken lines generally as 43.
  • the valve support body 2 embraces coaxial ly a movable valve member 5 which has an upper conical ly tapering seat 6 to engage the seat 43 on the spigot 4 thereby forming a valve closure of the passageway 42.
  • the valve member 5 is connected to the valve support body 2 by a plurality of thin flexible webs 7. As may
  • the webs 7 are in the nature of a "spider" construction and progress both radially and peripherally to form elongate connections between the valve member 5 and support body 2.
  • the webs 7 provide not only support and centralisation of the valve member but also provide the necessary spring force to urge the seat 6 against the seat 43 and into sealing engagement therewith.
  • the valve member 5 incorporates a hollow core 8 which increases the surface area and thus makes the valve more sensitive to a partial vacuum applied from this side.
  • FIGS. 3 and 4 of the drawings show a closure cap 30 for a container which carries a dip tube 31 communicating with a manually operable pump mechanism generally designated 32 whereby the fluid contents of a container coupled to the cap 30 may be discharged through a nozzle generally designated 33 as a jet or spray.
  • the pump unit has a manually operable lever 34 coupled with a piston 35 which operates in conjunction with cylinder 36.
  • a piston 35 which operates in conjunction with cylinder 36.
  • SUBSTITUTE SHEET 36 is ejected through passageway 38 and acts to seat valve 37 to thereby pass through passageway 39 lifting valve 40 and being ejected through nozzle 33.
  • the valves 40 and 37 can be of a construction as shown in Figures 1 and 2 if preferred and as shown in Figure 3.
  • closure cap 30 which incorporates a further valve means 41 which opens when a partial vacuum is present within the container to allow air to enter via passageway 42.
  • valve means 41 (and valve means 37, 40 of Figure 3) are secured to a spigot 4, the arrangement forming a particularly simple and easy to assemble construction.
  • vent valve 41 has the further advantage of allowing the container to be operated a limited number of times in the inverted position without leakage of liquid. Furthermore, the construction of valve according to this invention and as illustrated in Figures 1 and 2 allows venting at very low differential pressures by virtue of the light resilient spring forces which can be obtained through use of the webs 7 connecting the valve member 5 to the support body 2.
  • the valve member may be moulded in one piece from a resilient plastics or rubber material such as LDPE.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)

Abstract

A top fitting and closure cap (30) for a fluid container (not shown) includes a dip tube (31), pump (32), valves (37, 40) and discharge nozzle (33), whereby operation of trigger (34) draws fluid from the container up tube (31) and into cylinder (36) to be discharged from the nozzle (33) as a spray or jet. The closure cap (30) has a valve member comprising an outer cylindrical body (2) which is a force fit over spigot (4) and a valve (5) resiliently mounted within body (2) by means of thin flexible webs (7). The nose (6) of valve (5) closes against tapered seat (43). The valve (5) lifts from the seat at very low differential pressures to vent the container during discharge of the contents. The valve otherwise seals the container against fluid loss during carriage and particularly inversion.

Description

TITLE
RELIEF VALVE
This invention relates to a valve member and is more particularly concerned with a valve member associated with a container for holding a fluid medium with a manually operated pump member forming part of the container and arranged to provide a means for ejecting the fluid from the container as a spray or jet.
It is one of the objects of this invention to provide an improved container or cap or closure therefor with an associated pump mechanism serving to eject the contents as a spray.
It is a further object of this invention to provide a construction of valve means primarily but not essentially for use with the container as aforesaid.
In accordance with a first aspect of this invention, there is provided a closure or cap member for a container which includes a manually operable pump means whereby fluid may be drawn from the container and ejected from a nozzle as a spray or jet, characterised in that the cap has a valve means with associated passageway whereby partial vacuum within the container is relieved.
More particularly, and in accordance with this
SUBSTITUTE SHEET invention, there is provided a closure cap member for a container, the cap having a tube which, in use, extends into the container, a manually operated pump means with a trigger device which may be actuated to draw fluid up the tube from the container and to discharge same from a nozzle, characterised in that the cap has an externally opening passageway normally closed by a valve member and arranged to that any partial vacuum occurring within the container as liquid is drawn up the tube is relieved by ingress of air through said passageway through part of said valve member moving away from the passageway.
In accordance with a second aspect of this invention there is provided a valve member for use with a fluid container having associated therewith a manually operable pump means serving to eject fluid from the container in the form of a jet or spray, characterised in that the valve member comprises an annular valve support body and a movable valve coaxial therewith and connected to said support body by a plurality of flexible webs whereby the valve is axial ly displaceable with respect to the support body.
In a preferred construction of valve member the support body comprises a cylindrical housing coaxial ly embracing the valve which has an end thereof tapered which co-operates with a fixed valve seat located within
SUBSTITUTE SHEET a spigot to which the support body is secured.
The webs may comprise a number of arms which extend in an outwardly and circumferential ly progressing direction from the valve member towards the valve support body.
In one construction, and further according to this invention, the valve support body has at one end an inwardly directed formation to engage a complementary annular recess on a spigot including an axial orifice with a tapered mouth forming a fixed valve seat, the movable valve carried by the valve support body having a nose portion to correspond with the valve seat which nose portion sealingly engages said seat.
In a further aspect of this invention there is provided a closure cap for a container incorporating internally a valve means as hereinbefore referred to.
In another aspect of this invention, there is provided a manually operable pump unit for a fluid container said pump unit incorporating at least one valve means as hereinbefore referred to.
In order to enable the invention to be better understood, reference is now made to the accompanying drawings which show by way of example a valve means in accordance with this invention and in addition a valve means and closure cap with a manually operable pump
SUBSTITUTE SHEET device for use with a fluid container.
In the drawings:-
Figure 1 shows a valve means in accordance with this invention in cross section on A-A of Figure 2,
Figure 2 shows the valve means of Figure 1 in plan view,
Figure 3 shows a manually operable pump mechanism for use with a fluid container and incorporating the valve means, and
Figure 4 shows a modified pump mechanism.
Referring firstly to Figures 1 and 2 of the drawings, these show a valve means having an annular and cylindrical valve support body 2 with an annular projecting rim 3 on the upper internal peripheral surface. In use, the rim 3 engages a corresponding annular recess in a spigot 4 which includes a central axial passageway 42 opening into in a tapered conical valve seat indicated in broken lines generally as 43. The valve support body 2 embraces coaxial ly a movable valve member 5 which has an upper conical ly tapering seat 6 to engage the seat 43 on the spigot 4 thereby forming a valve closure of the passageway 42.
The valve member 5 is connected to the valve support body 2 by a plurality of thin flexible webs 7. As may
SUBSTITUTE SHEET be seen, the webs 7 are in the nature of a "spider" construction and progress both radially and peripherally to form elongate connections between the valve member 5 and support body 2. The webs 7 provide not only support and centralisation of the valve member but also provide the necessary spring force to urge the seat 6 against the seat 43 and into sealing engagement therewith. The valve member 5 incorporates a hollow core 8 which increases the surface area and thus makes the valve more sensitive to a partial vacuum applied from this side.
Referring now to Figures 3 and 4 of the drawings, these show a closure cap 30 for a container which carries a dip tube 31 communicating with a manually operable pump mechanism generally designated 32 whereby the fluid contents of a container coupled to the cap 30 may be discharged through a nozzle generally designated 33 as a jet or spray.
The pump unit has a manually operable lever 34 coupled with a piston 35 which operates in conjunction with cylinder 36. When the piston is on the intake stroke, that is to say moving towards the left as shown in the drawing, fluid is drawn up dip tube 31 and through one way valve 37 to fill the cylinder 36 via passageway 38. On the pressure stroke, that is to say when the piston 35 moves to the right, fluid within the cylinder
SUBSTITUTE SHEET 36 is ejected through passageway 38 and acts to seat valve 37 to thereby pass through passageway 39 lifting valve 40 and being ejected through nozzle 33. The valves 40 and 37 can be of a construction as shown in Figures 1 and 2 if preferred and as shown in Figure 3.
In the construction according to this invention the closure cap 30 which incorporates a further valve means 41 which opens when a partial vacuum is present within the container to allow air to enter via passageway 42.
As may be seen from Figures 3 and 4, the valve means 41 (and valve means 37, 40 of Figure 3) are secured to a spigot 4, the arrangement forming a particularly simple and easy to assemble construction.
Provision of the vent valve 41 has the further advantage of allowing the container to be operated a limited number of times in the inverted position without leakage of liquid. Furthermore, the construction of valve according to this invention and as illustrated in Figures 1 and 2 allows venting at very low differential pressures by virtue of the light resilient spring forces which can be obtained through use of the webs 7 connecting the valve member 5 to the support body 2. The valve member may be moulded in one piece from a resilient plastics or rubber material such as LDPE.
SUBSTITUTE SHEET

Claims

1. A closure cap member for a container, the cap having a tube which, in use, extends into the container, a manually operated pump means with a trigger device which may be actuated to draw fluid up the tube from the container and to discharge same from a nozzle, characterised in that the cap has an externally opening passageway normally closed by a valve member and arranged to that any partial vacuum occurring within the container as liquid is drawn up the tube is relieved by ingress of air through said passageway through part of said valve member moving away from the passageway.
2. A valve member for use with a fluid container having associated therewith a manually operable pump means serving to eject fluid from the container in the form of a jet or spray, characterised in that the valve member comprises an annular valve support body and a movable valve coaxial therewith and connected to said support body by a plurality of flexible webs whereby the valve is axially displaceable with respect to the support body.
3. A valve member according to Claim 2 and in combination with and forming the valve member of a
SUBSTITUTESHEET closure cap in accordance with Claim 1.
4. A valve member according to Claim 2 or 3 , wherein the valve support body is cylindrical, the valve being located coaxially within said body.
5. A valve member according to Claim 4, wherein the valve support body has a formation on an inner circumferential surface which is adapted to fit over and engage with a complementary formation on a spigot, the spigot having a central passageway defining a seating for the valve.
6. A valve member according to any preceding claim 2 to 5, wherein the support body comprises a cylindrical housing coaxially embracing the valve which has an end thereof tapered which co-operates with a fixed valve seat located within a spigot to which the support body is secured.
7. A valve member in accordance with Claim 5 or 6, wherein said spigot is incorporated into a closure cap or top fitting of a container.
8. A valve member according to any preceding Claim 2 to
SUBSTITUTESHEET 7, wherein the webs comprise a number of arms which extend in an outwardly and circumferential ly progressing direction from the valve member towards the valve support body.
9. A valve member according to Claim 8, wherein the webs have a generally spirally progressive planform.
10. A valve member according to any preceding Claim 2 to 9, wherein the valve support body has at one end an inwardly directed formation to engage a complementary annular recess on a spigot including an axial orifice with a tapered mouth forming a fixed valve seat, the movable valve carried by the valve support body having a nose portion to correspond with the valve seat which nose portion sealingly engages said seat.
11. A valve member constructed and arranged to function as described herein and exemplified with reference to the drawings .
12. A valve member in combination with a top fitting having a trigger operated pump adapted to discharge liquid from a container as described herein and exemplified with reference to the drawings.
SUBSTITUTE SHEET
PCT/GB1993/002563 1992-12-15 1993-12-15 Relief valve WO1994013408A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU57052/94A AU5705294A (en) 1992-12-15 1993-12-15 Relief valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929226140A GB9226140D0 (en) 1992-12-15 1992-12-15 A valve means
GB9226140.3 1992-12-15

Publications (1)

Publication Number Publication Date
WO1994013408A1 true WO1994013408A1 (en) 1994-06-23

Family

ID=10726648

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1993/002563 WO1994013408A1 (en) 1992-12-15 1993-12-15 Relief valve

Country Status (3)

Country Link
AU (1) AU5705294A (en)
GB (2) GB9226140D0 (en)
WO (1) WO1994013408A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5553752A (en) * 1990-10-25 1996-09-10 Contico International, Inc. Spring for trigger sprayer
US5697556A (en) * 1995-12-18 1997-12-16 Contico International, Inc. Liquid dispenser having discharge valve assembly
US5984149A (en) * 1994-11-11 1999-11-16 Spraysol Gmbh All plastic trigger pump

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000193006A (en) 1998-12-22 2000-07-14 Fukoku Co Ltd Flat spring-integrated core and its manufacture
ES2161198B1 (en) 2000-05-16 2002-07-01 Calmar Monturas Sa PUMP WITH DECOMPRESSION DEVICE.
JP6723093B2 (en) * 2016-06-24 2020-07-15 キャニヨン株式会社 Accumulator spray base body and accumulator spray with base body

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040852A1 (en) * 1980-05-27 1981-12-02 Specialty Packaging Products, Inc. Fluid dispensing device
DE8535472U1 (en) * 1984-12-28 1986-02-06 Spray Plast S.p.A., Romano d'Ezzelino, Vicenza Sprayer
DE9112697U1 (en) * 1991-10-11 1993-02-04 Frimec Fritz Meckenstock Gmbh & Co, 5600 Wuppertal, De

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910458A (en) * 1974-05-06 1975-10-07 Seaquist Valve Co Finger pump
AU507516B2 (en) * 1975-10-29 1980-02-21 The Afa Corporation Diaphragm pump dispenser
US4161288A (en) * 1976-10-05 1979-07-17 Creative Dispensing Systems, Inc. Fluid dispenser method and apparatus
US4168788A (en) * 1978-07-12 1979-09-25 The Afa Corporation Closure cap and dispenser body assembly
DE3245493C1 (en) * 1982-07-21 1984-02-09 Karlheinz 8902 Neusäß Kläger Ventilation valve for the liquid container of a hand-operated liquid atomizer
US4624413A (en) * 1985-01-23 1986-11-25 Corsette Douglas Frank Trigger type sprayer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040852A1 (en) * 1980-05-27 1981-12-02 Specialty Packaging Products, Inc. Fluid dispensing device
DE8535472U1 (en) * 1984-12-28 1986-02-06 Spray Plast S.p.A., Romano d'Ezzelino, Vicenza Sprayer
DE9112697U1 (en) * 1991-10-11 1993-02-04 Frimec Fritz Meckenstock Gmbh & Co, 5600 Wuppertal, De

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5553752A (en) * 1990-10-25 1996-09-10 Contico International, Inc. Spring for trigger sprayer
US5984149A (en) * 1994-11-11 1999-11-16 Spraysol Gmbh All plastic trigger pump
US5697556A (en) * 1995-12-18 1997-12-16 Contico International, Inc. Liquid dispenser having discharge valve assembly

Also Published As

Publication number Publication date
AU5705294A (en) 1994-07-04
GB9325656D0 (en) 1994-02-16
GB2273532A (en) 1994-06-22
GB9226140D0 (en) 1993-02-10

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