WO2005071295A1 - Half turn lever operated pinch valve - Google Patents

Half turn lever operated pinch valve Download PDF

Info

Publication number
WO2005071295A1
WO2005071295A1 PCT/AP2005/000001 AP2005000001W WO2005071295A1 WO 2005071295 A1 WO2005071295 A1 WO 2005071295A1 AP 2005000001 W AP2005000001 W AP 2005000001W WO 2005071295 A1 WO2005071295 A1 WO 2005071295A1
Authority
WO
WIPO (PCT)
Prior art keywords
die
sleeve
valve
closing
closed position
Prior art date
Application number
PCT/AP2005/000001
Other languages
French (fr)
Inventor
Barrett Morley Musgrave Payne
Original Assignee
Payne Barrett Morley M
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 Payne Barrett Morley M filed Critical Payne Barrett Morley M
Priority to AU2005206584A priority Critical patent/AU2005206584A1/en
Publication of WO2005071295A1 publication Critical patent/WO2005071295A1/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
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
    • F16K7/04—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force
    • F16K7/06—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force by means of a screw-spindle, cam, or other mechanical means
    • 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
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
    • F16K7/04—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force
    • F16K7/06—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force by means of a screw-spindle, cam, or other mechanical means
    • F16K7/063—Lever clamps

Definitions

  • This invention is concerned with valves known as pinch valves being those which are opened and closed by pinching or releasing a resiliently de-formable sleeve.
  • the sleeves are used in the control of abrasive and corrosive fluids. The sleeves are discarded when worn out allowing the valve to operate with repeated sleeve replacements.
  • the prime object of this invention is to replace the slow hand wheel operated pinch valve with a fast action half turn lever operated pinch valve.
  • a new type of pinch valve has been developed and is described as follows.
  • a valve body fabricated from standard tubes and flanges of different materials, into which the sleeve is inserted and locked by retaining rings.
  • the closing action is provided by a half turn lever operating tlirough a pivot and fulcrum movement producing progressively increasing closing forces into the locked closed position which can only be disengaged by a reverse movement to the hand lever.
  • the locked closed position occurs when the fulcrum has been pushed by the lever to the very bottom of it ' s 180 degree arc of ' travel and slightly beyond the valve's center line to the fulcrum ' s off center stop position. This is die closed position and the fulcrum is locked in by the up thrust of the elastic resilience of the clamped shut sleeve.
  • the fulcrum movement tlirough the bottom half of it ' s arc of travel produces high clamping forces to pinch the sleeve shut against pipe line fluid pressures.
  • the resiliently de-formable sleeve further provides elastic shock absorption areas in the clamped shut position. This shock dampening is most important as surge pressures and accompanying pipe line hammer is a product of the quick closing action.
  • the resiliently de-formable sleeve further provides abutments which are compressed into static seals between flanges when the valve is bolted to opposing pipe line flanges.
  • the quick acting lever operated closing assembly incorporates a double disc brake packed with sticky- viscous grease to slow the valve's opening action.
  • the elastic and pressured sleeve snaps out of the valve's closed and locked position when the hand lever is pushed to the valve's open position. It is essential to brake the lever whiplash.
  • the viscous grease also provides lubrication to the pivot and fulcrum and prevents ingress of dirt.
  • Two valves of this invention positioned side by side and with their closing assemblies back to back and dieir hand levers interconnected and flanges on one side interconnected to a common inlet will give lever selection of one of two pipe line outlets.
  • a gentle, safe diversion selection by half turn hand lever is achieved as both closing gates simultaneously open and close benefiting from a neutral pressure balanced mid position.
  • Fig. 1 represents the cross section, side view, valve closed.
  • Fig. 2 represents the cross section, end view, valve closed.
  • Fig. 3 represents the cross section of the body only, side view, valve open.
  • Fig. 4 represents the cross section, end view, valve open.
  • Fig. 5 shows the cross section of the sleeve and retaining rings.
  • Fig. 6 shows two valves interconnected, end view, one open, one closed.
  • Fig. 7 shows two valves interconnected, end view, both half open in neutral.
  • Fig. 1 shows the cross section of the side view of the valve in tlie fully closed position with the sleeve pinched shut and a pipe line flange bolted to one of the valve ' s flanges and the opposite valve flange is open.
  • Tlie cross section shows the valve body 19 with tlie bracket 18 and end flanges 20 and cross section of die resiliently de-formable sleeve 10 secured in it ' s central position within die valve body 19 by the retaining rings 1 1 situated widiin their valve body recess 15 with tlie sleeve 10 clamped shut producing elastic pressure absorption areas A and A.
  • the sleeve 10 is shown clamped shut at 23 between tlie bottom of the closing gate 14 and die bottom of the valve body 19 producing an elastic up thrust force at 23 and a locked closed position of tl e off center located fulcrum at 29.
  • valve ' s cross section shows pipe line flange 36 bolted to it ' s opposing valve flange 20 with tl e flexible abutment of the sleeve 10 compressed and contained into a static fluid seal 16 within recess 15.
  • the right side of the valve is shown open and not bolted to a pipe line flange and therefore it shows the flexible sleeves abutment 13 protruding beyond tlie face of the flange 20. It shows the sleeve 10 secured in a central position by the retaining ring 11 which is clipped into tlie sleeve's moulded grooves 12 and further clipped into tlie recess 15 within both valve flanges 20. It shows the retaining rings 11 solidly backed up against tlie step 22 at both machined ends of the steel tube body 19 which in turn is welded at 21 to die valve's flanges 20.
  • Tl e closing gate 14 is seen protruding tlirough tl e crosswise slot 17 situated between slot 26 of bracket 18.
  • the bracket 18 is in cross section and shows the milled 180 degree slot 31 containing tlie fulcrum 29 which is locked in it ' s down thrust valve closed position.
  • the guide slot 26 reveals one of the thrust arms 30 which is also in tlie down thrust position.
  • This view also shows the pivot 28 with it's grease dispersal channel 33 and tlie inside of tl e containing disc 32 tlirough slot 31 with tl e hand lever 25 attached on the far side.
  • Fig. 2 shows a cross section of tlie valve with sleeve 10 clamped shut between tlie rounded leading edge of d e closing gate 14 and tl e rounded bottom half of the valve body 19.
  • the sleeve 10 is pinched shut at 23 and has also been doubled in thickness at both folds 24 at each side of the closing gate.
  • Tl e closing gate 14 is fully extended to the valve's pinched shut position and it protrudes tlirough the crosswise slot 17 situated between bracket 18 and guides 26.
  • the sleeve's elastic pressure absorption areas A and A are shown and so is d e elastic up thrust at the sleeve's pinched shut position 23.
  • Grease dispersal nipple 34 and channel 33 and die interfacing greased areas between bracket 18 and discs 32 provide a brake action or drag to prevent die backlash of the hand lever 25.
  • Fig. 3 shows the cross section of the side view of the valve body 19 and it ' s flanges 20 with die resiliently de-formable sleeve 10 in die fully open full flow position.
  • Tlie valve closing gate 14 has been fully extended upwards by hand lever 25 ' allowing die resiliently de- formable sleeve 10 to push die closing gate assembly outwards and upwards and tlie resilient sleeve has returned to it's full flow open position.
  • the sleeve 10 is shown without pipline flanges bolted on and with it ' s flexible projecting abutments 13 uncontained and uncompressed.
  • Tlie sleeve 10 is shown centrally locked in position by retaining ring 11. This cross section shows the retaining ring 11 solidly backed up against the step 22 at both machined ends of the tube 19 which forms die valve ' s body 19 which in turn is welded to die valve ' s flanges 20 at weld 21.
  • the half turn lever 25 is welded at 35 to die outside of containing disc 32 which in turn is connected at fulcrum 29 by thrust arms 30 to connecting pin 27.
  • the closing gate 14 has been pulled up. sliding between parallel guides 26.
  • Fig. 4 shows a cross section of die valve with die sleeve 10 in die fully open position giving full flow of the pipe line fluid.
  • the hand lever 25 can be placed at any position and can be arranged to open and close die valve through any arc of 180 degree travel backwards or forwards or under or over.
  • Fig. 5 shows the cross section of the side view of the moulded resiliently de-formable sleeve 10 and at eidier end of die sleeve 10 are external circular grooves 12 moulded into the outside diameter of the sleeve.
  • the retaining rings 11 slip into these grooves 12 and also into die recess provided in die valve flanges 15.
  • the protruding flexible abutment of die sleeve 13 will on die bolting on of the opposing pipe line flanges compress into high pressure fluid seals 16 which contain die pressured fluid within d e valve ' s sleeves 10 and in die pipe line.
  • the sleeve has no internal or external reinforcement.
  • Fig. 6 shows two valves joined together by bracket 36 with their closing assemblies positioned back to back. Both valves have their closing levers 25 interconnected by sleeve 37 and locked by pins 38. Both hand levers 25 are positioned to face in die same direction throughout dieir half turn arc of travel. Tlierefore as one valve is locked into it's fully opened position tlie otlier valve is automatically locked into it ' s fully closed position. When die hand lever is reversed to tlie end of it ' s opposite half turn arc of travel both valves open and closed positions are again reversed.
  • Fig. 7 shows the two valves joined togedier as shown and described in Fig. 6.
  • the interconnected hand levers 25 are shown in their neutral position half ay between each valves fully open and fully closed position.
  • Both valves closing gates 14 and their resiliently de-formable sleeves 10 are respectively half open and half closed depending on die direction of movement of their hand levers 25.

Abstract

This invention has a flanged tubular valve body into which is inserted a replaceable resiliently de-formable sleeve (10). The sleeve (10) secured in position has protruding ends, which form into compression seals (16) between flanges (20). A slot (26) in the tubular valve body accommodates a sliding closing gate (44). A half turn hand lever (25) working through a pivot and fulcrum (28) gives positive valve closure against pressurised pipeline fluids. A gentle valve opening is controlled by grease packed brake discs. The sleeve (10) in the pinched shut position suppresses shock loads and pipeline hammer permitting quick valve closing. Two valves of this invention with interconnected closing levers (25) and interconnected pipe inlet gives a diverter selection of two outlets.

Description

HALF TURN LEVER OPERATED PINCH VALVE
This invention is concerned with valves known as pinch valves being those which are opened and closed by pinching or releasing a resiliently de-formable sleeve. The sleeves are used in the control of abrasive and corrosive fluids. The sleeves are discarded when worn out allowing the valve to operate with repeated sleeve replacements.
In the nature of presently known hand operated pinch valves the opening'and closing is accomplished by a threaded valve spindle rotated by a hand wheel. This requires many hand wheel rotations and is time consuming. It is known that most abrasive damage is done to these sleeves during this slow opening and closing.
The prime object of this invention is to replace the slow hand wheel operated pinch valve with a fast action half turn lever operated pinch valve. In order to accomplish this a new type of pinch valve has been developed and is described as follows.
A valve body fabricated from standard tubes and flanges of different materials, into which the sleeve is inserted and locked by retaining rings. The closing action is provided by a half turn lever operating tlirough a pivot and fulcrum movement producing progressively increasing closing forces into the locked closed position which can only be disengaged by a reverse movement to the hand lever. The locked closed position occurs when the fulcrum has been pushed by the lever to the very bottom of it's 180 degree arc of ' travel and slightly beyond the valve's center line to the fulcrum's off center stop position. This is die closed position and the fulcrum is locked in by the up thrust of the elastic resilience of the clamped shut sleeve. Most importantly the fulcrum movement tlirough the bottom half of it's arc of travel produces high clamping forces to pinch the sleeve shut against pipe line fluid pressures.
The resiliently de-formable sleeve further provides elastic shock absorption areas in the clamped shut position.. This shock dampening is most important as surge pressures and accompanying pipe line hammer is a product of the quick closing action. The resiliently de-formable sleeve further provides abutments which are compressed into static seals between flanges when the valve is bolted to opposing pipe line flanges.
The quick acting lever operated closing assembly incorporates a double disc brake packed with sticky- viscous grease to slow the valve's opening action. The elastic and pressured sleeve snaps out of the valve's closed and locked position when the hand lever is pushed to the valve's open position. It is essential to brake the lever whiplash. The viscous grease also provides lubrication to the pivot and fulcrum and prevents ingress of dirt.
Two valves of this invention positioned side by side and with their closing assemblies back to back and dieir hand levers interconnected and flanges on one side interconnected to a common inlet will give lever selection of one of two pipe line outlets. A gentle, safe diversion selection by half turn hand lever is achieved as both closing gates simultaneously open and close benefiting from a neutral pressure balanced mid position.
Fig. 1 represents the cross section, side view, valve closed.
Fig. 2 represents the cross section, end view, valve closed.
Fig. 3 represents the cross section of the body only, side view, valve open.
Fig. 4 represents the cross section, end view, valve open.
Fig. 5 shows the cross section of the sleeve and retaining rings.
Fig. 6 shows two valves interconnected, end view, one open, one closed.
Fig. 7 shows two valves interconnected, end view, both half open in neutral. Fig. 1 shows the cross section of the side view of the valve in tlie fully closed position with the sleeve pinched shut and a pipe line flange bolted to one of the valve's flanges and the opposite valve flange is open.
Tlie cross section shows the valve body 19 with tlie bracket 18 and end flanges 20 and cross section of die resiliently de-formable sleeve 10 secured in it's central position within die valve body 19 by the retaining rings 1 1 situated widiin their valve body recess 15 with tlie sleeve 10 clamped shut producing elastic pressure absorption areas A and A.
The sleeve 10 is shown clamped shut at 23 between tlie bottom of the closing gate 14 and die bottom of the valve body 19 producing an elastic up thrust force at 23 and a locked closed position of tl e off center located fulcrum at 29.
The left side of valve's cross section shows pipe line flange 36 bolted to it's opposing valve flange 20 with tl e flexible abutment of the sleeve 10 compressed and contained into a static fluid seal 16 within recess 15.
The right side of the valve is shown open and not bolted to a pipe line flange and therefore it shows the flexible sleeves abutment 13 protruding beyond tlie face of the flange 20. It shows the sleeve 10 secured in a central position by the retaining ring 11 which is clipped into tlie sleeve's moulded grooves 12 and further clipped into tlie recess 15 within both valve flanges 20. It shows the retaining rings 11 solidly backed up against tlie step 22 at both machined ends of the steel tube body 19 which in turn is welded at 21 to die valve's flanges 20.
Tl e closing gate 14 is seen protruding tlirough tl e crosswise slot 17 situated between slot 26 of bracket 18. The bracket 18 is in cross section and shows the milled 180 degree slot 31 containing tlie fulcrum 29 which is locked in it's down thrust valve closed position. The guide slot 26 reveals one of the thrust arms 30 which is also in tlie down thrust position. This view also shows the pivot 28 with it's grease dispersal channel 33 and tlie inside of tl e containing disc 32 tlirough slot 31 with tl e hand lever 25 attached on the far side.
Fig. 2 shows a cross section of tlie valve with sleeve 10 clamped shut between tlie rounded leading edge of d e closing gate 14 and tl e rounded bottom half of the valve body 19. The sleeve 10 is pinched shut at 23 and has also been doubled in thickness at both folds 24 at each side of the closing gate. Tl e closing gate 14 is fully extended to the valve's pinched shut position and it protrudes tlirough the crosswise slot 17 situated between bracket 18 and guides 26. The sleeve's elastic pressure absorption areas A and A are shown and so is d e elastic up thrust at the sleeve's pinched shut position 23.
Tlie relation of both containing discs 32 to tlie thrust arms 30 and fulcrum 29 pivot 28 and connecting pin 27 is shown.
Grease dispersal nipple 34 and channel 33 and die interfacing greased areas between bracket 18 and discs 32 provide a brake action or drag to prevent die backlash of the hand lever 25.
The hand lever 25 is shown welded at 35 to tlie outsides of the containing discs 32. Fig. 3 shows the cross section of the side view of the valve body 19 and it's flanges 20 with die resiliently de-formable sleeve 10 in die fully open full flow position.
Tlie valve closing gate 14 has been fully extended upwards by hand lever 25'allowing die resiliently de- formable sleeve 10 to push die closing gate assembly outwards and upwards and tlie resilient sleeve has returned to it's full flow open position. The sleeve 10 is shown without pipline flanges bolted on and with it's flexible projecting abutments 13 uncontained and uncompressed. Tlie sleeve 10 is shown centrally locked in position by retaining ring 11. This cross section shows the retaining ring 11 solidly backed up against the step 22 at both machined ends of the tube 19 which forms die valve's body 19 which in turn is welded to die valve's flanges 20 at weld 21.
The half turn lever 25 is welded at 35 to die outside of containing disc 32 which in turn is connected at fulcrum 29 by thrust arms 30 to connecting pin 27.
The closing gate 14 has been pulled up. sliding between parallel guides 26.
Fig. 4 shows a cross section of die valve with die sleeve 10 in die fully open position giving full flow of the pipe line fluid.
The hand lever 25 can be placed at any position and can be arranged to open and close die valve through any arc of 180 degree travel backwards or forwards or under or over.
Fig. 5 shows the cross section of the side view of the moulded resiliently de-formable sleeve 10 and at eidier end of die sleeve 10 are external circular grooves 12 moulded into the outside diameter of the sleeve.
The retaining rings 11 slip into these grooves 12 and also into die recess provided in die valve flanges 15. The protruding flexible abutment of die sleeve 13 will on die bolting on of the opposing pipe line flanges compress into high pressure fluid seals 16 which contain die pressured fluid within d e valve's sleeves 10 and in die pipe line. The sleeve has no internal or external reinforcement.
Fig. 6 shows two valves joined together by bracket 36 with their closing assemblies positioned back to back. Both valves have their closing levers 25 interconnected by sleeve 37 and locked by pins 38. Both hand levers 25 are positioned to face in die same direction throughout dieir half turn arc of travel. Tlierefore as one valve is locked into it's fully opened position tlie otlier valve is automatically locked into it's fully closed position. When die hand lever is reversed to tlie end of it's opposite half turn arc of travel both valves open and closed positions are again reversed.
Fig. 7 shows the two valves joined togedier as shown and described in Fig. 6. The interconnected hand levers 25 are shown in their neutral position half ay between each valves fully open and fully closed position. Both valves closing gates 14 and their resiliently de-formable sleeves 10 are respectively half open and half closed depending on die direction of movement of their hand levers 25.

Claims

CLAIM 1
A tubular valve body fabricated from standard tubes and flanges into which is inserted a resilientiy de- formable sleeve which is locked into place by two retaining rings which are backed against die shoulder of die tubular valve body within d e recess in die flange bore into which die sleeve abutments are compressed into static seals.
CLAIM 2
A tubular valve body according to Claim 1 with a crosswise slot to accommodate die sliding closing gate and to which is welded die bracket with it's vertical gate slot in alignment with die 180 degree off set half round fulcrum slot and central pivot location.
CLAIM 3
A half turn lever operated closing gate with a half round leading edge conforming to die contour of the valve's tubular body against which the sleeve is pinched shut by pushing the top half of the sleeve into it's bottom half giving an elastic up thrust force to lock the fulcrum into die valve closed position.
CLAIM 4
A half turn lever operated closing gate which slides within it's guide slots according to Claim 2 and is actuated by hand lever operating tlirough a half turn pivot and fulcrum action to produce a progressive increasing closing force until die sleeve is pinched tighd}' shut and die fulcrum is locked in die valve closed position.
CLAIM 5
A half turn hand lever closing assembly which actuates pivoting brake discs situated on both sides of the bracket into which viscous grease is pumped providing a brake effect to prevent hand lever backlash when die lever is moved out of the locked closed position.
CLAIM 6
A moulded resiliently de-formable sleeve according to Claim 1 having substantial wall diickness and no internal or external reinforcement with moulded grooves around tlie outside diameter providing outward projecting seal abutments.
CLAIM 7
A resiliently de-formable sleeve according to Claim 3 which in die pinched closed position gives an elastic up tiirust force locking tlie valve in it's closed position.
CLAIM 8
A resiliently de-formable sleeve which in die pinched closed position provides elastic shock absorption areas at both sides of the closed gate,
CLAIM 9
A combination of two valves of this invention locked together side by side with dieir closing and opening half turn levers interconnected providing a flow diverter selection of one of two pipe line outlets.
PCT/AP2005/000001 2004-01-27 2005-01-17 Half turn lever operated pinch valve WO2005071295A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2005206584A AU2005206584A1 (en) 2004-01-27 2005-01-17 Half turn lever operated pinch valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZW12004 2004-01-27
ZW01/2004 2004-01-27

Publications (1)

Publication Number Publication Date
WO2005071295A1 true WO2005071295A1 (en) 2005-08-04

Family

ID=33477339

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AP2005/000001 WO2005071295A1 (en) 2004-01-27 2005-01-17 Half turn lever operated pinch valve

Country Status (4)

Country Link
AU (1) AU2005206584A1 (en)
GB (1) GB2410538B (en)
NZ (1) NZ537464A (en)
WO (1) WO2005071295A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8215609B2 (en) 2007-05-16 2012-07-10 Hun Ki Kim Flow control valve assembly with low noise
CN103511659A (en) * 2013-09-29 2014-01-15 湖北三江航天红峰控制有限公司 Pipeline opening-closing mechanism
CN109357038A (en) * 2018-11-29 2019-02-19 珠海优特智厨科技有限公司 Clamp mechanism
US10371269B2 (en) 2016-05-18 2019-08-06 Proto Fusion Inc. Sleeve for use in a pinch valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4931636B2 (en) * 2007-02-24 2012-05-16 株式会社セイコーアイ・インフォテック Pinch valve, equipment

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US2660395A (en) * 1949-11-21 1953-11-24 Cement Gun Company Inc Compressible tube valve
DE1091388B (en) * 1956-12-13 1960-10-20 Schoenebecker Brunnenfilter Ge Shut-off device with, in particular, a replaceable hose piece made of elastic material in the housing and a flat slide as pressure piece
GB1039052A (en) * 1964-01-28 1966-08-17 Alessandro Perosino Improvements in or relating to fluid flow control valves
US3826461A (en) * 1972-11-24 1974-07-30 F Summerfield Valves
GB1423821A (en) * 1972-02-18 1976-02-04 Alvasum Aseptic Ltd Flexible tubular members and valves incorporating such members
US4303222A (en) * 1980-02-06 1981-12-01 Red Valve Company, Inc. Pinch valve
US4899783A (en) * 1988-09-30 1990-02-13 Whitey Co. Pinch valve
JPH09317906A (en) * 1996-05-24 1997-12-12 Taisei Ramick Kk Direction changeover valve

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RU2007649C1 (en) * 1991-11-04 1994-02-15 Научно-производственное внедренческое товарищество с ограниченной ответственностью "Фактор" Valve unit
GB2264550A (en) * 1992-02-25 1993-09-01 Merck & Co Inc Pinch valve
US6123099A (en) * 1997-06-19 2000-09-26 George S. Cole & Associates, Incorporated Pinch tube tank level control valve with snap-action shutoff
DE19821080B4 (en) * 1998-05-12 2004-07-08 Behr Gmbh & Co. Valve, in particular for a heat transfer medium circuit of a motor vehicle
FR2778959A1 (en) * 1998-05-19 1999-11-26 Paul Boudier Tap for distribution of drinks
DE19936959A1 (en) * 1999-08-05 2001-02-15 Wolf Gmbh Richard Pinch valve for medical instruments and devices

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2660395A (en) * 1949-11-21 1953-11-24 Cement Gun Company Inc Compressible tube valve
DE1091388B (en) * 1956-12-13 1960-10-20 Schoenebecker Brunnenfilter Ge Shut-off device with, in particular, a replaceable hose piece made of elastic material in the housing and a flat slide as pressure piece
GB1039052A (en) * 1964-01-28 1966-08-17 Alessandro Perosino Improvements in or relating to fluid flow control valves
GB1423821A (en) * 1972-02-18 1976-02-04 Alvasum Aseptic Ltd Flexible tubular members and valves incorporating such members
US3826461A (en) * 1972-11-24 1974-07-30 F Summerfield Valves
US4303222A (en) * 1980-02-06 1981-12-01 Red Valve Company, Inc. Pinch valve
US4899783A (en) * 1988-09-30 1990-02-13 Whitey Co. Pinch valve
JPH09317906A (en) * 1996-05-24 1997-12-12 Taisei Ramick Kk Direction changeover valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8215609B2 (en) 2007-05-16 2012-07-10 Hun Ki Kim Flow control valve assembly with low noise
DE112008001260B4 (en) * 2007-05-16 2015-08-06 Hun Ki Kim Flow control valve assembly with low noise
CN103511659A (en) * 2013-09-29 2014-01-15 湖北三江航天红峰控制有限公司 Pipeline opening-closing mechanism
US10371269B2 (en) 2016-05-18 2019-08-06 Proto Fusion Inc. Sleeve for use in a pinch valve
CN109357038A (en) * 2018-11-29 2019-02-19 珠海优特智厨科技有限公司 Clamp mechanism

Also Published As

Publication number Publication date
GB0423112D0 (en) 2004-11-17
GB2410538A (en) 2005-08-03
AU2005206584A1 (en) 2005-08-04
GB2410538B (en) 2006-06-28
NZ537464A (en) 2007-02-23

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