US3106935A - Automatic vacuum breaking sill cock - Google Patents

Automatic vacuum breaking sill cock Download PDF

Info

Publication number
US3106935A
US3106935A US104399A US10439961A US3106935A US 3106935 A US3106935 A US 3106935A US 104399 A US104399 A US 104399A US 10439961 A US10439961 A US 10439961A US 3106935 A US3106935 A US 3106935A
Authority
US
United States
Prior art keywords
valve
housing
cock
valve stem
disc
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.)
Expired - Lifetime
Application number
US104399A
Inventor
Gatzke Edward
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US104399A priority Critical patent/US3106935A/en
Application granted granted Critical
Publication of US3106935A publication Critical patent/US3106935A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F16K24/02—Devices, e.g. valves, for venting or aerating enclosures the enclosure being itself a valve, tap, or cock
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/09—Component parts or accessories
    • E03B7/10—Devices preventing bursting of pipes by freezing
    • E03B7/12—Devices preventing bursting of pipes by freezing by preventing freezing
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B9/00—Methods or installations for drawing-off water
    • E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
    • E03B9/025—Taps specially designed for outdoor use, e.g. wall hydrants, sill cocks
    • 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
    • Y10T137/3149—Back flow prevention by vacuum breaking [e.g., anti-siphon devices]
    • Y10T137/3185—Air vent in liquid flow line
    • Y10T137/3294—Valved
    • Y10T137/3331—With co-acting valve in liquid flow path
    • 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
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/6966—Static constructional installations
    • Y10T137/6969—Buildings
    • Y10T137/698—Wall

Definitions

  • This invention relates to a sill cock and more particularly to an anti-freeze type of sill cock wherein the operating handle is positioned on the exterior of a building and the shutoif valve is positioned on the interior thereof to prevent freezing of the valve.
  • the principal object of this invention is to provide automatic means for admitting air to the cock, when the valve is closed, so as to prevent the formation of a vacuum therein so that it will drain freely into a connected hose to eliminate freezing.
  • Another object of the invention is to provide a vacuum breaking attachment for anti-freeze sill cocks which can be quickly and easily installed in present conventional cosks without requiring any changes in the latter and without the use of special tools or equipment.
  • FIG. 1 is a side elevation of a conventional anti-freeze type sill cock partially broken away to show the interior construction and with the invention in place thereon;
  • FIG. 2 is an enlarged side elevation of the outer or external extremity of the cock of FIG. 1 partially broken away to show the position of the improved vacuum breaking attachment;
  • FIG. 3 is a still further fragmentary enlargement of the broken away portion of FIG. 2;
  • F168. 4, and 6 are cross-sections taken on the lines 44-, 5-5, and 6-6, FIG. 3, respectively.
  • elements of a conventional anti-freeze sill cock are illustrated on the drawing and designated by numeral as follows: wall tube 11 arranged to pass through the wall of a building; external cock housing 11, threaded or otherwise mounted on the outer extremity of the tube 11) and adapted to be positioned against the outside face of the wall; valve housing 12, threaded or otherwise mounted on the interior extremity of the wall tube for receiving a water supply pipe 13; and valve stem 14, extending axially through the tube 10 and the cock housing 11 and terminating at its outer extremity in a conventional hand wheel 15 having a wheel hub 36, and at its inner extremity in a shutoff valve 16 and provided with conventional valve actuating threads 17.
  • the housing 11 is usually provided with a wall flange 18 and a hose spout 19.
  • the hose spout 19 is threaded, as shown at 20, to receive a conventional hose coupling.
  • a valve stem bushing is threaded into the neck 3-7.
  • This bushing is not used with this invention and is not illustrated.
  • This invention is designed to automatically admit air to the housing 11 and break the vacuum therein so as to allow the residual water to drain directly into the connected hose.
  • the invention employs a circular ported disc 21 having a plurality of inner air ports 35, and an axial opening 22, for the passage of the valve stem 14.
  • the disc 21 has an outer diameter sufficient to pass closely within the valve stem neck 37 against an internal shoulder 23 therein, with which such housings are conventionally provided.
  • a body member 24 is threaded into the internal threads of the neck 37 and acts to fixedly clamp the ported disc 21 against its shoulder 23.
  • the body member 24 is provided with external threads 25, external wrench-receiving faces 26, a hand wheel hubreceiving cavity 27 in its outer face; a circular valve cavity 28 in its inner face; a plurality of air ports 34 and an axial bore 29 for the passage of the valve stem 14.
  • the body member 24 is sealed to the housing neck 37 by means of a suitable sealing gasket 39.
  • the valve cavity 28 is counterbored to a smaller diameter to form an annular shoulder or valve seat 31.
  • a relatively thin, fiat, circular [flap valve disc 32- is positioned about the valve stem 14 in the valve cavity 28.
  • the flap valve disc 32 is formed from exceedingly flexible resilient material such as rubber, neoprene, flexible plastic, nylon or the like and is molded with an annular hub 33 having a normal internal diameter slightly less than the external diameter of the valve stem 14 so that when forced over the latter, it will frictionally engage thereabout.
  • the conventional hand wheel 15 and the conventional valve stem bushing are removed from the housing 1-1.
  • the ported disc 21 is slipped over the valve stem 14 and pushed in place in the housing neck 37.
  • the hub 33 of the flap valve disc 32 is placed over the valve stem 14 followed by the body member 24, with its gasket 36 in place, and the body member 24 is threaded tightly into the housing 11 against the gasket 36.
  • the hand wheel 15 is now replaced and the cock is ready for use without any changes in its original construction.
  • a sill cock comprising: an external housing; an internal supply shutoff valve; a wall tube connecting said housing to said valve; a valve stem extending from said valve outwardly through said housing; a body member threaded into the outer extremity of said housing about said valve stem; an internal annular seat formed on said body member concentric of said valve stem; and a relatively flat, thin, flexible, circular flap valve disc mounted on said valve stem and means maintaining said valve disc in such relation to said seat that it may flex into contact with the latter and close said ports when the pressure in said housing exceeds atmospheric pressure and so that it may flex away from said seat when the pressure in said housing is sub-atmospheric.
  • a sill cock as described in claim 1 having a ported disc fixedly positioned in said housing in spaced relation to said seat, said flap valve disc being positioned bet-ween said body member and said ported disc so that said ported disc ⁇ will limit the movement of said valve disc away 4 from said valve seat, the ports in said ported disc allowing free flow to and from said valve disc at all times.
  • a sill cock comprising: a wall tube; a shut 01? valve on the inner extremity of said wall tube; an external hose cock housing mounted on the outer extremity, of said wall tube; a valve stem extending from said shut Off valve through said hose cock housing; a body member mounted in said housing about said stem; an air port extending through said body member in radial spaced relation to said stem and communicating with the interior of said cock housing; a circular valve seat formed on said body member concentric of said stem and of greater radius than the radial spacing of said air port; a flexible valve disc mounted on said stem interiorly of and in spaced relation to said valve seat so that pressure in said cock housing will flex said disc against said valve,
  • a ported disc fixed in said neck about said stem and spaced interiorly from said disc and positioned to be contacted by the latter to limit the movement of said disc away from said valve seat and to maintain an open flow to said valve disc at all times.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Description

Get. 15, 1963 E. GATZKE AUTOMATIC VACUUM BREAKING SILL COCK Filed April 20, 1961 INVENTOR. .fimw/m GATE/(f United States Patent 3,106,935 AUTDMATIC VACUUM BREAKING SILL CSCK Edward Gatzke, 11595 W. 32nd Ave., Wheat Ridge, Colo. Filed Apr. 20, 1961, Ser. No. 104,399 3 Claims. (Cl. 137-213) This invention relates to a sill cock and more particularly to an anti-freeze type of sill cock wherein the operating handle is positioned on the exterior of a building and the shutoif valve is positioned on the interior thereof to prevent freezing of the valve. It is intended that, when the valve is closed, the residual water will drain externally, from the cock to prevent freezing in the portion passing through the wall to the exterior. It is necessary, however, that air be enabled to enter the cock to replace the water draining therefrom and if the valve be closed a relatively long hose is connected to the cock, the water in the hose acts to prevent the flow of air so that a partial vacuum will be formed to retain the water in the cock. This residual water is subject to freezing with resulting damage to the cock and the conduit passing through the wall.
The principal object of this invention is to provide automatic means for admitting air to the cock, when the valve is closed, so as to prevent the formation of a vacuum therein so that it will drain freely into a connected hose to eliminate freezing.
Another object of the invention is to provide a vacuum breaking attachment for anti-freeze sill cocks which can be quickly and easily installed in present conventional cosks without requiring any changes in the latter and without the use of special tools or equipment.
Other objects and advantages reside in the detail construction of the invention, which is designed for simplicity, economy, and efficiency. These will become more apparent from the following description.
In the following detailed description of the invention, reference is had to the accompanying drawing which forms a part hereof. Like numerals refer to like parts in all views of the drawing and throughout the description.
In the drawing:
FIG. 1 is a side elevation of a conventional anti-freeze type sill cock partially broken away to show the interior construction and with the invention in place thereon;
FIG. 2 is an enlarged side elevation of the outer or external extremity of the cock of FIG. 1 partially broken away to show the position of the improved vacuum breaking attachment;
FIG. 3 is a still further fragmentary enlargement of the broken away portion of FIG. 2; and
F168. 4, and 6 are cross-sections taken on the lines 44-, 5-5, and 6-6, FIG. 3, respectively.
For the purposes of illustration and description, elements of a conventional anti-freeze sill cock are illustrated on the drawing and designated by numeral as follows: wall tube 11 arranged to pass through the wall of a building; external cock housing 11, threaded or otherwise mounted on the outer extremity of the tube 11) and adapted to be positioned against the outside face of the wall; valve housing 12, threaded or otherwise mounted on the interior extremity of the wall tube for receiving a water supply pipe 13; and valve stem 14, extending axially through the tube 10 and the cock housing 11 and terminating at its outer extremity in a conventional hand wheel 15 having a wheel hub 36, and at its inner extremity in a shutoff valve 16 and provided with conventional valve actuating threads 17. The housing 11 is usually provided with a wall flange 18 and a hose spout 19. The hose spout 19 is threaded, as shown at 20, to receive a conventional hose coupling. In the conventional cock, a valve stem bushing is threaded into the neck 3-7.
"ice
This bushing is not used with this invention and is not illustrated.
The above described elements are conventional in antifreeze sill cooks. When the hand wheel 15 is rotated, clockwise, the s-hutoif valve 16 is forced to a seat to shut 011 the supply pipe 13. \Vhen the valve is closed, the residual water in the tube 19 and the housing 11 is intended to drain from the hose spout 19. However, if a hose is connected to the spout 1-9, the water in the hose prevents air from entering the housing 11 and the tube 10 so that a vacuum is formed which acts to retain the water therein with resulting freezing damage.
This invention is designed to automatically admit air to the housing 11 and break the vacuum therein so as to allow the residual water to drain directly into the connected hose.
The invention employs a circular ported disc 21 having a plurality of inner air ports 35, and an axial opening 22, for the passage of the valve stem 14. The disc 21 has an outer diameter sufficient to pass closely within the valve stem neck 37 against an internal shoulder 23 therein, with which such housings are conventionally provided. A body member 24 is threaded into the internal threads of the neck 37 and acts to fixedly clamp the ported disc 21 against its shoulder 23.
The body member 24 is provided with external threads 25, external wrench-receiving faces 26, a hand wheel hubreceiving cavity 27 in its outer face; a circular valve cavity 28 in its inner face; a plurality of air ports 34 and an axial bore 29 for the passage of the valve stem 14. The body member 24 is sealed to the housing neck 37 by means of a suitable sealing gasket 39. The valve cavity 28 is counterbored to a smaller diameter to form an annular shoulder or valve seat 31.
A relatively thin, fiat, circular [flap valve disc 32- is positioned about the valve stem 14 in the valve cavity 28. The flap valve disc 32 is formed from exceedingly flexible resilient material such as rubber, neoprene, flexible plastic, nylon or the like and is molded with an annular hub 33 having a normal internal diameter slightly less than the external diameter of the valve stem 14 so that when forced over the latter, it will frictionally engage thereabout.
To install the invention in the housing 11, the conventional hand wheel 15 and the conventional valve stem bushing are removed from the housing 1-1. The ported disc 21 is slipped over the valve stem 14 and pushed in place in the housing neck 37. The hub 33 of the flap valve disc 32 is placed over the valve stem 14 followed by the body member 24, with its gasket 36 in place, and the body member 24 is threaded tightly into the housing 11 against the gasket 36. The hand wheel 15 is now replaced and the cock is ready for use without any changes in its original construction.
If the hand Wheel 15 be rotated counter-clockwise, to open the supply valve 16, water will rush under pressure through the tube 10 into the housing 11 and through the inner ports 34 and against the flap valve 32 so as to force the latter against the annular valve seat 31 to prevent the escape of water through the outer air ports 34. it will be noted that when the valve stem 14 moves outwardly to open the shutoff valve 16, the frictional engagement between the valve stem and the hub 33 of the flap valve 32 will move the hub outwardly against the body member 24 so as to seal the latter about the valve stem.
If the hand wheel 15 be now rotated clockwise to close the valve 15, the inward movement of the valve stem will carry the hub of the flap valve 32 toward and against the ported disc 21 and away from the body member 24 so that air may flow freely inward through the outer air ports 35, around the periphery of the flap valve, and through amaeas the inner ports 34 into the housing 11. Thus, preventing the formation of a vacuum therein should a hose be connected to the hose spout 19, so that the residual water may freely drain away.
While a specific form of the improvement has been 7 described and illustrated herein, it is to be understood that the same may be varied within the scope of the appended claims, Without departing from the spirit of the invention.
Having thus described the invention, what is claimed and desired to be secured by Letters Patent is:
1. A sill cock comprising: an external housing; an internal supply shutoff valve; a wall tube connecting said housing to said valve; a valve stem extending from said valve outwardly through said housing; a body member threaded into the outer extremity of said housing about said valve stem; an internal annular seat formed on said body member concentric of said valve stem; and a relatively flat, thin, flexible, circular flap valve disc mounted on said valve stem and means maintaining said valve disc in such relation to said seat that it may flex into contact with the latter and close said ports when the pressure in said housing exceeds atmospheric pressure and so that it may flex away from said seat when the pressure in said housing is sub-atmospheric.
2. A sill cock as described in claim 1 having a ported disc fixedly positioned in said housing in spaced relation to said seat, said flap valve disc being positioned bet-ween said body member and said ported disc so that said ported disc \will limit the movement of said valve disc away 4 from said valve seat, the ports in said ported disc allowing free flow to and from said valve disc at all times.
3. A sill cock comprising: a wall tube; a shut 01? valve on the inner extremity of said wall tube; an external hose cock housing mounted on the outer extremity, of said wall tube; a valve stem extending from said shut Off valve through said hose cock housing; a body member mounted in said housing about said stem; an air port extending through said body member in radial spaced relation to said stem and communicating with the interior of said cock housing; a circular valve seat formed on said body member concentric of said stem and of greater radius than the radial spacing of said air port; a flexible valve disc mounted on said stem interiorly of and in spaced relation to said valve seat so that pressure in said cock housing will flex said disc against said valve,
seat to close said port; and a ported disc fixed in said neck about said stem and spaced interiorly from said disc and positioned to be contacted by the latter to limit the movement of said disc away from said valve seat and to maintain an open flow to said valve disc at all times.
References Cited in the file of this patent UNITED STATES PATENTS 2,210,986 Martin Aug. 13,1940 2,270,910 Svirsky Jan. 27, 1942 2,607,364 Smith Aug. 19, 1952 2,730,117 Svirsky Ian. 10, 1956 2,802,481 Jahn Aug. 13, 1957 2,952,270 Fulton Sept. 13, 1960 3,025,870 Mackey Mar. 20, 1962

Claims (1)

1. A SILL COCK COMPRISING: A EXTERNAL HOUSING; AN INTERNAL SUPPLY SHUTOFF VALVE; A WALL TUBE CONNECTING SAID HOUSING TO SAID VALVE; A VALVE STEM EXTENDING FROM SAID VALVE OUTWARDLY THROUGH SAID HOUSING; A BODY MEMBER THREADED INTO THE OUTER EXTREMITY OF SAID HOUSING ABOUT SAID VALVE STEM; AN INTERNAL ANNULAR SEAT FORMED ON SAID BODY MEMBER CONCENTRIC OF SAID VALVE STEM; AND A RELATIVELY FLAT, THIN FLEXIBLE, CIRCULAR FLAP VALVE DISC MOUNTED ON SAID VALVE STEM AND MEANS MAINTAINING SAID VALVE DISC IN SUCH RELATION TO SAID SEAT THAT IT MAY FLEX INTO CONTACT WITH THE LATTER AND CLOSE SAID PORTS WHEN THE PRESSURE IN SAID HOUSING EXCEEDS ATMOSPHERIC PRESSURE AND SO THAT IT MAY FLEX AWAY FROM SAID SEAT WHEN THE PRESSURE IN SAID HOUSING IS SUB-ATMOSPHERIC.
US104399A 1961-04-20 1961-04-20 Automatic vacuum breaking sill cock Expired - Lifetime US3106935A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US104399A US3106935A (en) 1961-04-20 1961-04-20 Automatic vacuum breaking sill cock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US104399A US3106935A (en) 1961-04-20 1961-04-20 Automatic vacuum breaking sill cock

Publications (1)

Publication Number Publication Date
US3106935A true US3106935A (en) 1963-10-15

Family

ID=22300277

Family Applications (1)

Application Number Title Priority Date Filing Date
US104399A Expired - Lifetime US3106935A (en) 1961-04-20 1961-04-20 Automatic vacuum breaking sill cock

Country Status (1)

Country Link
US (1) US3106935A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416556A (en) * 1966-08-22 1968-12-17 Sloan Valve Co Combination sill-cock and vacuum breaker
US3424189A (en) * 1965-08-17 1969-01-28 Woodford Mfg Co Self-draining sill cock and vacuum breaker
US3494373A (en) * 1966-02-28 1970-02-10 Murdock Mfg & Supply Co The Frostproof hydrant
US3952770A (en) * 1973-12-17 1976-04-27 Botnick Irlin H Non-freeze wall hydrant with vacuum breaker
US4206777A (en) * 1975-12-15 1980-06-10 Hirsch Elder F Vacuum breaker valve and stem packing assembly
US4209033A (en) * 1975-12-15 1980-06-24 Hirsch Elder F Vacuum breaker valve
US4286616A (en) * 1976-02-03 1981-09-01 Botnick Irlin H Non-freeze wall hydrant
US4475570A (en) * 1981-10-16 1984-10-09 Prier Brass Manufacturing Co. Anti-syphon freezeless water hydrant
US4700732A (en) * 1986-09-04 1987-10-20 Francisco Robert D Faucet drain apparatus
US5029603A (en) * 1990-07-20 1991-07-09 Watts Regulator Company Anti-siphon frost-proof water hydrant
US5129416A (en) * 1990-07-20 1992-07-14 Watts Regulator Company Anti-siphon frost-proof water hydrant
US5372158A (en) * 1993-09-30 1994-12-13 Shop Vac Corporation Valve with backflow preventer
US5740831A (en) * 1996-12-31 1998-04-21 Nibco Inc. Frostproof hydrant seal
US20180202133A1 (en) * 2017-01-18 2018-07-19 Aquor Water Systems, Incorporated Anti-freezing water valve with optional anti-siphon assembly and water-valve accessories
US11186970B2 (en) 2017-03-29 2021-11-30 Aquor Water Systems, Incorporated Anti-freezing water valve configured for underground (buried) use and with optional anti-siphon assembly, and water-valve accessories
US11542689B2 (en) 2017-03-29 2023-01-03 Aquor Water Systems, Incorporated Fire-suppression water-intake valve, fire-suppression sprinkler head configured for rapid installation in, and rapid removal from, the water-intake valve without the need to interrupt the water supply, and related systems and methods

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2210986A (en) * 1939-11-30 1940-08-13 Stanley D Martin Wall hydrant
US2270910A (en) * 1940-01-15 1942-01-27 Sans Inc Water control for closet tanks
US2607364A (en) * 1949-07-27 1952-08-19 Mansfield Sanitary Pottery Inc Inlet valve for flush tanks
US2730117A (en) * 1952-08-05 1956-01-10 Free Gold Entpr Inc Antisiphoning structure for ball cocks
US2802481A (en) * 1954-12-16 1957-08-13 Leroy B Jahn Anti-siphoning valve
US2952270A (en) * 1958-08-06 1960-09-13 Mansfield Sanitary Inc Non-freezing ball cock valve
US3025870A (en) * 1960-02-09 1962-03-20 Scovill Manufacturing Co Anti-siphonic device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2210986A (en) * 1939-11-30 1940-08-13 Stanley D Martin Wall hydrant
US2270910A (en) * 1940-01-15 1942-01-27 Sans Inc Water control for closet tanks
US2607364A (en) * 1949-07-27 1952-08-19 Mansfield Sanitary Pottery Inc Inlet valve for flush tanks
US2730117A (en) * 1952-08-05 1956-01-10 Free Gold Entpr Inc Antisiphoning structure for ball cocks
US2802481A (en) * 1954-12-16 1957-08-13 Leroy B Jahn Anti-siphoning valve
US2952270A (en) * 1958-08-06 1960-09-13 Mansfield Sanitary Inc Non-freezing ball cock valve
US3025870A (en) * 1960-02-09 1962-03-20 Scovill Manufacturing Co Anti-siphonic device

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3424189A (en) * 1965-08-17 1969-01-28 Woodford Mfg Co Self-draining sill cock and vacuum breaker
US3494373A (en) * 1966-02-28 1970-02-10 Murdock Mfg & Supply Co The Frostproof hydrant
US3416556A (en) * 1966-08-22 1968-12-17 Sloan Valve Co Combination sill-cock and vacuum breaker
US3952770A (en) * 1973-12-17 1976-04-27 Botnick Irlin H Non-freeze wall hydrant with vacuum breaker
US4206777A (en) * 1975-12-15 1980-06-10 Hirsch Elder F Vacuum breaker valve and stem packing assembly
US4209033A (en) * 1975-12-15 1980-06-24 Hirsch Elder F Vacuum breaker valve
US4286616A (en) * 1976-02-03 1981-09-01 Botnick Irlin H Non-freeze wall hydrant
US4475570A (en) * 1981-10-16 1984-10-09 Prier Brass Manufacturing Co. Anti-syphon freezeless water hydrant
US4700732A (en) * 1986-09-04 1987-10-20 Francisco Robert D Faucet drain apparatus
US5029603A (en) * 1990-07-20 1991-07-09 Watts Regulator Company Anti-siphon frost-proof water hydrant
US5129416A (en) * 1990-07-20 1992-07-14 Watts Regulator Company Anti-siphon frost-proof water hydrant
US5372158A (en) * 1993-09-30 1994-12-13 Shop Vac Corporation Valve with backflow preventer
US5740831A (en) * 1996-12-31 1998-04-21 Nibco Inc. Frostproof hydrant seal
US20180202133A1 (en) * 2017-01-18 2018-07-19 Aquor Water Systems, Incorporated Anti-freezing water valve with optional anti-siphon assembly and water-valve accessories
US11242673B2 (en) * 2017-01-18 2022-02-08 Aquor Water Systems, Incorporated Anti-freezing water valve with optional anti-siphon assembly and water-valve accessories
US11186970B2 (en) 2017-03-29 2021-11-30 Aquor Water Systems, Incorporated Anti-freezing water valve configured for underground (buried) use and with optional anti-siphon assembly, and water-valve accessories
US11542689B2 (en) 2017-03-29 2023-01-03 Aquor Water Systems, Incorporated Fire-suppression water-intake valve, fire-suppression sprinkler head configured for rapid installation in, and rapid removal from, the water-intake valve without the need to interrupt the water supply, and related systems and methods

Similar Documents

Publication Publication Date Title
US3106935A (en) Automatic vacuum breaking sill cock
US2511435A (en) Vacuum breaker valve
US2516825A (en) Metering valve
US3384113A (en) Relief valve
US3060961A (en) Pivoted valve structure
US3180352A (en) Anti-siphon check valve
US3103947A (en) Drain attachment
US3491786A (en) Tire inflation and pressure control valve
US3844310A (en) Pressure relief valve unit
US2995337A (en) Valve
GB1039400A (en) Fluid flow control valve
AU2016202482B2 (en) Pneumatic pressure relief test plug
US3310277A (en) Valve and valve disc
US4209033A (en) Vacuum breaker valve
US2997054A (en) Vacuum breaker
US3724488A (en) Combination seal cap and valve
US2893418A (en) Vacuum breakers for water supply systems
US3960365A (en) Gladhand with shutoff cock
US3982561A (en) Combination surge relief and back flow prevention valve
GB900274A (en) Improvements in fluid flow fittings
US2630291A (en) Valve apparatus
US3276741A (en) Valve and valve disc
US2659570A (en) Valve
US3905386A (en) Valve
US2285221A (en) Valve