WO1996017191A1 - Automatic valves - Google Patents
Automatic valves Download PDFInfo
- Publication number
- WO1996017191A1 WO1996017191A1 PCT/GB1995/002792 GB9502792W WO9617191A1 WO 1996017191 A1 WO1996017191 A1 WO 1996017191A1 GB 9502792 W GB9502792 W GB 9502792W WO 9617191 A1 WO9617191 A1 WO 9617191A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- automatically
- operating valve
- operating
- valve member
- Prior art date
Links
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
- B67D7/06—Details or accessories
- B67D7/32—Arrangements of safety or warning devices; Means for preventing unauthorised delivery of liquid
- B67D7/3209—Arrangements of safety or warning devices; Means for preventing unauthorised delivery of liquid relating to spillage or leakage, e.g. spill containments, leak detection
-
- 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
- B67D7/06—Details or accessories
- B67D7/32—Arrangements of safety or warning devices; Means for preventing unauthorised delivery of liquid
- B67D7/3218—Arrangements of safety or warning devices; Means for preventing unauthorised delivery of liquid relating to emergency shut-off 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/363—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position the closure members being rotatable or pivoting
-
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
- F16K17/386—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature the closure members being rotatable or pivoting
-
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/1007—Couplings closed automatically when broken
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/1624—Destructible or deformable element controlled
- Y10T137/1632—Destructible element
- Y10T137/1639—Combined destructible and fusible element
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/1624—Destructible or deformable element controlled
- Y10T137/1632—Destructible element
- Y10T137/1654—Separable valve coupling or conduit
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8811—Frangible
Definitions
- This invention relates to an automatically- operating valve, intended to close off a flow passage through the valve in the event that the valve is subjected to a significant shear force.
- the invention is intended for use in connection with the mounting of a forecourt liquid fuel dispensing pump, on to a supporting base.
- Fuel pumps for dispensing petrol or diesel fuel into the tank of a motor vehicle generally comprise a self-contained unit mounted on a base or plinth on a garage forecourt, the pump being connected by way of a pipeline to an underground storage tank from which the fuel is drawn during operation of the pump.
- Some fuel pumps operate simply by suction, so that there is a sub-atmospheric pressure in the pipe from the underground tank to the pump, whenever the pump is in operation.
- Other systems employ a pressure-feed system where fuel in the pipeline from the tank to the pump is under pressure, to ensure a uniform delivery of fuel to the pump. This system may be employed when there is a relatively long pipeline from the underground tank to the pump.
- an automatically-operating valve comprising a body defining a flow passage and having a weakened zone around that passage, a valve member mounted within the passage for movement towards a closed position where the valve member closes the passage on one side of the weakened zone, spring means urging the valve member to said closed position, a brittle frangible link bridging the weakened zone, and a control mechanism bearing on the frangible link and controlling movement of the valve member under the action of the spring means.
- the shear valve of this invention will hereinafter further be described particularly with reference to its intended use with a forecourt petrol or diesel pump, though the valve may find uses in other industries - for example in a chemical manufacturing plant.
- the closing of the flow passage through the valve body is controlled by a brittle frangible link which bridges the weakened zone.
- the brittle frangible link inevitably will also break, so freeing the control mechanism to allow the valve member to move under the action of the spring means, thereby closing the flow passage. In this way, closing of the flow passage may be assured in the event that the valve body is subjected to a sufficient force to cause the valve body to shear at its weakened zone, even if there is no significant movement between the two parts of the sheared valve body.
- valve member could be arranged for linear sliding movement within the flow passage, it is preferred for the valve member to be pivotally mounted, for movement between an open position and said closed position, the valve member not significantly impeding flow through the flow passage when, in its open position.
- the valve member may be mounted on a shaft which projects externally of the body, in which case the control mechanism may include a crank arm mounted on the shaft.
- the crank arm may have an abutment at or adjacent the end thereof remote from the shaft, which abutment may bear directly on the frangible link. In this way, upon the frangible link breaking, the abutment is no longer restrained against movement by the frangible link so freeing the crank arm, and in turn allowing the valve member to move to its closed position.
- the frangible link preferably comprises a glass rod or tube.
- a link should be rigidly mounted on the valve body, to both sides of the weakened zone, whereby breakage of the link may be assured in the event that the valve body shears at that zone.
- a pair of lugs upstand from the valve body, one to each side of the weakened zone, each lug defining a respective slot for receiving an end portion of the frangible link and the frangible link being clamped or cemented in position, in the slots.
- the spring means is disposed externally of the body and acts on the shaft on which the valve member is mounted, or on the crank arm connected thereto.
- the control mechanism includes a fusible link which melts at a predetermined low temperature, thereby freeing the valve member to move to its closed position under the action of the spring means.
- the frangible link could be arranged to soften, burst or break should the temperature in the vicinity of the valve rise significantly, so freeing the valve member. Either arrangement may give added protection against fuel leakage, in the event of a fire in the vicinity of the valve.
- the part of the body defining a flow passage having a weakened zone may be formed as a separate unit removable from the remainder of the valve body, in order to allow easy repair in the event that the valve has been sheared by an external force.
- said unit may include a pair of external flanges disposed therearound, at each end of the unit, which flanges may register with corresponding flanges formed on the remainder of the valve body and the respective flanges being bolted together in a fluid-tight manner. Then, in the event that the valve shears, the bolts may be released and the sheared unit removed from the remainder of the body, for replacement by an unbroken unit.
- a float is provided in a catchment tank or tray provided below the pump, which float is coupled to a trip mechanism associated with the control means of the valve, whereby the valve will close in the event that any significant quantity of liquid accumulates in the tank or tray.
- the valve of this invention may act to close off the fuel supply to the pump.
- valve is used for a forecourt fuel pump
- a second automatically-operating valve within the shear valve body and arranged to close the flow passage through the valve body on the side of the line of weakness opposed to that side which is closed by the above-described automatically-operating valve.
- Such a second valve may comprise a simple non-return valve.
- that second automatically-operating valve may be of substantially the same configuration as the first-mentioned automatically-operating valve described above, the second automatically-operating valve also being controlled by the same frangible link.
- Figure 1 is a side view of a known construction of automatically-operating shear valve, such as is widely used for the pipeline feeding fuel to a forecourt fuel pump;
- Figure 2 is a diagrammatic sectional view through a first embodiment of automatically-operating valve constructed and arranged in accordance with the present invention
- Figure 3 is a detail view on a part of the valve of Figure 2, taken in the direction of arrow B marked on Figure 2;
- Figure 4 is a sectional view through a second embodiment of automatically-operating valve of this invention;
- Figure 5 shows a valve similar to that of Figure 2, but including a removable unit to facilitate repair.
- a known design of shear valve for use in connecting the inlet pipe 10 of a forecourt fuel pump to a pipeline 11 leading to the pump from an underground storage tank.
- the shear valve is intended to be installed at substantially the same level as the bottom of the fuel pump, where that pump is mounted on to a base or plinth.
- the shear valve comprises a body 12 which is internally threaded at its lower end 13 and is directly screwed on to the end of the pipeline 11 from the tank.
- the upper end of the body 12 carries a hexagonal boss
- valve body 12 machined into the body 12, thereby defining a weakened zone around the body.
- shearing of the body may be assured across that groove 15.
- a shaft 16 extends through the valve body 12, below the groove 15, and supports internally of the body a valve member (not shown) which may move to a position where the valve member closes the flow passage through the valve body, below the groove 15, upon rotation of the shaft from the position shown.
- Crank 17 projects radially from the shaft and carries a pin 18 at its free end, which pin is normally received in a slot 19 at the free end of an arm 20, pivoted to the body 12 above the groove 15.
- a coil spring (not shown) is provided around the shaft 16, to urge the shaft to rotate in the direction of arrow A, and so to move the valve member to its flow passage closing position.
- FIG. 2 is a diagrammatic cross-section through a first embodiment of shear valve of the present invention and insofar as is approriate, like parts with those of Figure 1 are given like reference characters.
- annular valve seat 25 below the groove 15, and a second annular valve seat 26 above the groove 15.
- an arm 28 is rigidly connected to the shaft 16, the arm 28 carrying a circular valve member 29, movable upon rotation of the shaft 16 to the position shown in broken lines where the valve member seals against the valve seat 25 and so closes the flow passage 27.
- a non-return valve comprising a valve member 30 directly urged by a spring 31 is arranged above the groove 15, to cooperate with the second valve seat 26.
- a pair of lugs 32 upstand from the valve body 12, one to each side of the groove 15. Each lug defines a slot in which is received a brittle glass rod 33, the rod being cemented at its two ends into the slots in the two lugs, respectively.
- the shaft 16 Externally of the body 12, the shaft 16 carries a crank 34, the free end of that crank supporting a peg 35 which bears against the glass rod 33.
- a spring (not shown) is arranged to urge the shaft 16 to rotate in the direction of arrow A.
- the spring may comprise a coil spring wound round the shaft 16 and having one end anchored to the body 12 and its other end connected to the crank 34.
- the crank 34 may be formed in two overlying parts 36 and 37, the arm parts being linked together by means of a low melting point adhesive whereby the arm parts will separate upon the temperature rising to some predetermined value.
- the glass rod 33 may be replaced by a brittle plastics material rod, which loses its rigidity and strength when the temperature rises above some predetermined value, so allowing shaft 16 to rotate.
- valve member 29 During normal operation of the valve, the valve member 29 is in the position shown in solid lines in Figure 2 and is constrained there by the peg 35 of the crank 34 bearing on the glass rod 33, notwithstanding the force of the spring acting on shaft 16. Should the valve body be subjected to a shock sufficient to shear the valve body across groove 15, the glass rod 33 inevitably will break so freeing crank 34 and allowing the valve member 29 to move to the position shown in broken lines, in Figure 2. This action will occur even should there be only a very small displacement of the two parts of the valve body, upon fracture of the body. Equally, should there be a fire resulting in a temperature rise, the two arm parts 36 and 37 will separate and allow valve member 29 to move to a position where the flow passage 27 through the valve body is closed.
- FIG 4 shows a modification of the valve assembly of Figures 2 and 3 and again like reference characters are used to indicate like parts.
- the non-return valve comprised by valve member 30 and spring 31 is replaced by a second automatic valve described with reference to Figure 2.
- this second valve comprises shaft 116, arm 128, valve member 129 and crank 134, the peg 135 of crank 134 bearing on the same glass rod 33 as does peg 35 of crank 34 of the first valve.
- the function of this second valve assembly is precisely the same as that of the first-mentioned assembly and will not be described in detail again here.
- Figure 5 shows a valve essentially similar to that of Figure 2, but modified in order to facilitate the repair of the valve in the event that the valve is subjected to a sufficient force to shear the valve across the weakened zone.
- like reference characters are used to denote like parts with those of Figure 2.
- the weakened zone 40 is formed in a separate unit 41, having at each end a respective external flange 42.
- the parts 43 and 44 of the valve body to each side of the unit 41 are formed with corresponding flanges 45 and 46, nuts and bolts 47 being used through registering holes in the flanges to secure the unit in position.
- Pin 35 which acts against the link 33, is preferably made removable from arm 34, in order to facilitate servicing of the valve without breaking the link.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Mechanically-Actuated Valves (AREA)
- Check Valves (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU39873/95A AU715787B2 (en) | 1994-12-01 | 1995-11-29 | Automatic valves |
EP95938503A EP0795098B1 (en) | 1994-12-01 | 1995-11-29 | Automatic valves |
US08/849,997 US5765587A (en) | 1994-12-01 | 1995-11-29 | Automatic valves |
JP51843396A JP3738852B2 (en) | 1994-12-01 | 1995-11-29 | Automatic valve |
DE69512270T DE69512270T2 (en) | 1994-12-01 | 1995-11-29 | AUTOMATIC VALVES |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9424294A GB9424294D0 (en) | 1994-12-01 | 1994-12-01 | Automatic valves |
GB9424294.8 | 1994-12-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996017191A1 true WO1996017191A1 (en) | 1996-06-06 |
Family
ID=10765294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1995/002792 WO1996017191A1 (en) | 1994-12-01 | 1995-11-29 | Automatic valves |
Country Status (7)
Country | Link |
---|---|
US (1) | US5765587A (en) |
EP (1) | EP0795098B1 (en) |
JP (1) | JP3738852B2 (en) |
AU (1) | AU715787B2 (en) |
DE (1) | DE69512270T2 (en) |
GB (1) | GB9424294D0 (en) |
WO (1) | WO1996017191A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002012762A1 (en) | 2000-08-03 | 2002-02-14 | Osborne, Graham, William | Excess-flow valve |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002340208A (en) * | 2001-05-14 | 2002-11-27 | Ito Koki Kk | Gas external blowoff preventive valve |
US7188638B1 (en) | 2001-06-19 | 2007-03-13 | Peach/Wheeler Associates, Inc. | Damage resistant valve assembly |
US6571818B2 (en) | 2001-06-19 | 2003-06-03 | Peach/Wheeler Associates, Llc | Damage resistant break away valve stem |
US6692034B2 (en) * | 2001-10-29 | 2004-02-17 | Chart Inc. | Breakaway device for fueling stations |
US20060027262A1 (en) * | 2003-06-09 | 2006-02-09 | Rademacher John L | Dual stop valve assembly for use in cargo tank vehicles |
WO2005001327A1 (en) * | 2003-06-09 | 2005-01-06 | Brenner Tank, Llc. | Dual stop valve assembly for use in cargo tank vehicles |
US8020576B2 (en) * | 2006-10-26 | 2011-09-20 | Delaware Capital Formation, Inc. | Emergency shutoff valve for use in a fuel dispensing system |
US7578308B2 (en) * | 2006-10-26 | 2009-08-25 | Delaware Capital Formation, Inc. | Emergency shutoff valve for use in a fuel dispensing system |
US20110259436A1 (en) * | 2010-04-27 | 2011-10-27 | Donald Keith Fritts | Shear-pin relief valve |
US8336570B2 (en) * | 2011-03-15 | 2012-12-25 | Zena Associates, Llc | High-pressure fluid conduit |
AU2013314990A1 (en) * | 2012-09-17 | 2015-04-09 | Barry Graeme Holfeld | A valve for use with a hydraulically activated device |
US9625074B2 (en) | 2013-06-20 | 2017-04-18 | Zena Associates, Llc | High-pressure fluid conduit |
US9121536B2 (en) | 2013-06-20 | 2015-09-01 | Zena Associates, Llc | High-pressure fluid conduit |
EP2873900A1 (en) * | 2013-11-18 | 2015-05-20 | Ridart S.r.l. | High security double closing member valve, in particular for fuel delivery systems |
WO2015077787A1 (en) * | 2013-11-25 | 2015-05-28 | Chart Inc. | Multimode gas delivery for rail tender |
US8991415B1 (en) * | 2013-12-19 | 2015-03-31 | Francesco Luppino | Fire hydrant break off valve |
GB2524969A (en) * | 2014-04-07 | 2015-10-14 | Shand Engineering Ltd | Pipeline breakaway coupling assembly |
US10221984B2 (en) | 2016-05-10 | 2019-03-05 | Zena Associates, Llc | High-pressure cryogenic fluid conduit |
CN108758048A (en) * | 2018-08-26 | 2018-11-06 | 杭州龙颜激光技术有限公司 | Automatic-closing valve device and gas-fired equipment |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3489160A (en) * | 1966-09-12 | 1970-01-13 | Dover Corp | Emergency shut-off valve assembly |
US3860024A (en) * | 1972-07-10 | 1975-01-14 | James F Turley | Frost heave-protected sleeve-connected shut-off valve |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1044347A (en) * | 1912-06-29 | 1912-11-12 | Frank W Carlson | Closet connection. |
US2965116A (en) * | 1955-12-06 | 1960-12-20 | Opw Corp | Emergency shut-off valve for remote pump pedestal units |
US2906280A (en) * | 1955-12-12 | 1959-09-29 | Sun Oil Co | Break-away coupling |
US2962035A (en) * | 1958-05-07 | 1960-11-29 | Tokheim Corp | Impact and temperature responsive valve |
US3860025A (en) * | 1972-08-03 | 1975-01-14 | Brass Works Enterprise | Shut-off valve assembly with frangible body section |
FR2636734B1 (en) * | 1988-09-16 | 1990-11-30 | Cahors App Elec | DEVICE FOR ATTACHING A WATER METER TO A BASE AND RELATED METHOD |
US5193569A (en) * | 1990-02-09 | 1993-03-16 | Dover Corporation | Emergency shut-off valves |
US5244006A (en) * | 1992-03-17 | 1993-09-14 | Universal Valve Company, Inc. | Double poppet valve with removable shear fitting |
-
1994
- 1994-12-01 GB GB9424294A patent/GB9424294D0/en active Pending
-
1995
- 1995-11-29 AU AU39873/95A patent/AU715787B2/en not_active Ceased
- 1995-11-29 US US08/849,997 patent/US5765587A/en not_active Expired - Fee Related
- 1995-11-29 WO PCT/GB1995/002792 patent/WO1996017191A1/en active IP Right Grant
- 1995-11-29 JP JP51843396A patent/JP3738852B2/en not_active Expired - Fee Related
- 1995-11-29 DE DE69512270T patent/DE69512270T2/en not_active Expired - Fee Related
- 1995-11-29 EP EP95938503A patent/EP0795098B1/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3489160A (en) * | 1966-09-12 | 1970-01-13 | Dover Corp | Emergency shut-off valve assembly |
US3860024A (en) * | 1972-07-10 | 1975-01-14 | James F Turley | Frost heave-protected sleeve-connected shut-off valve |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002012762A1 (en) | 2000-08-03 | 2002-02-14 | Osborne, Graham, William | Excess-flow valve |
US6789561B2 (en) * | 2000-08-03 | 2004-09-14 | Graham William Osborne | Excess-flow valve |
Also Published As
Publication number | Publication date |
---|---|
US5765587A (en) | 1998-06-16 |
DE69512270D1 (en) | 1999-10-21 |
JPH11501385A (en) | 1999-02-02 |
JP3738852B2 (en) | 2006-01-25 |
DE69512270T2 (en) | 2000-05-11 |
AU715787B2 (en) | 2000-02-10 |
EP0795098B1 (en) | 1999-09-15 |
AU3987395A (en) | 1996-06-19 |
GB9424294D0 (en) | 1995-01-18 |
EP0795098A1 (en) | 1997-09-17 |
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