US3735772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water valve apparatus
Assignee: TORO Manufacturing CORP
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Filing: 1971-05-20
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Granted: 1973-05-29
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Expires: 1991-05-20
Abstract
Abstract The water valve apparatus has a subassembly of molded plastic valve actuator parts provided within a brass valve housing including a body having inlet and outlet chamber divided by a ported partition, a threaded cap including electrically or hydraulically operated internal pressure controlling means and a flow control stem assembly mounted on the cap. The apparatus subassembly of internal parts includes a one-piece molded cylindrical insert means having an upper threaded neck portion for removable connection into the cap and a depending cylindrical skirt positioned within the valve body inlet chamber upon assembly of the cap to the valve body. Piston means, including nested inner and outer cup-like members clamping a ring seal means between flanges thereof, are provided within the cylinder with a valve closure member fastened to the underside of the piston means and a control rod slidably mounted within a web of the cylinder insert means seated within the inner cup-like member of the piston means and biasing it via associated spring means into a valve closure position. In the first exemplary embodiment, port means are provided through the piston means to allow inlet water pressure to operate the piston means within the associated insert cylinder means to a valve closed position subject to selective venting thereof via an electrically operated valve in the valve housing. In an alternative embodiment, a hydraulic line is associated with the valve housing for selectively applying pressure within the cylinder insert means to force the piston means into a valve closed position or allow it to move to an open valve position under the urging of inlet water pressure.
Inventors
- 👤 E Hunter
- 👤 J Walto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:50
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/40; F16K31/406; A; A01; A01G; A01G25/00; A01G25/16; A01G25/162; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0402; Y10T137/0491; Y10T137/0497
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
211 words
In a water valve apparatus including a body having inlet and outlet chambers divided by a valve port, a port closure member for closing said port to the passage of water therethrough, and a cover means on said base having water passage means for venting water flow therethrough, the improvement comprising the provision of: cylinder insert means for insertion within said inlet chamber to receive a piston means therein, said cylinder insert means including an upper portion releasably connected into said cover means with the interior thereof in communication with said water passage means in said cover, said cylinder insert means upper portion being provided with a threaded marginal end portion to be turned into an interiorly threaded bore in said cover means, and wherein said cylinder insert includes a depending cylindrical skirt having a hollow interior to receive said piston means, and a ported web is formed between and integrally of said upper portion and said depending skirt portion; piston means associated with said port closure member; and means for positioning said piston means within said cylinder insert means with one side thereof facing into said interior of said cylinder insert means and an opposite side thereof exposed to the interior of said inlet chamber and any water pressure therein.
Claim 2
Dependent Claim
211 words
In a water valve apparatus including a body having inlet and outlet chambers divided by a valve port, a port closure member for closing said port to the passage of water therethrough, and a cover means on said base having water passage means for venting water flow therethrough, the improvement comprising the provision of: cylinder insert means for insertion within said inlet chamber to receive a piston means therein, said cylinder insert means including an upper portion releasably connected into said cover means with the interior thereof in communication with said water passage means in said cover, said cylinder insert means upper portion being provided with a threaded marginal end portion to be turned into an interiorly threaded bore in said cover means, and wherein said cylinder insert includes a depending cylindrical skirt having a hollow interior to receive said piston means, and a ported web is formed between and integrally of said upper portion and said depending skirt portion; piston means associated with said port closure member; and means for positioning said piston means within said cylinder insert means with one side thereof facing into said interior of said cylinder insert means and an opposite side thereof exposed to the interior of said inlet chamber and any water pressure therein.
Claim 3
Dependent Claim
43 words
The improvement in water valve apparatus of claim 1 wherein said means for positioning said piston means within said cylinder comprises: a control rod associated with said piston means within said depending skirt and extending upwardly through a port in said ported web.
Claim 4
Dependent Claim
48 words
The improvement in water valve apparatus of claim 2 wherein: spring biasing means are provided about said control rod between an underside of said web and a flange provided on said control rod to bias said rod and associated piston means and closure member toward said valve port.
Claim 5
Dependent Claim
72 words
The improvement in water valve apparatus of claim 2 wherein said means for positioning said piston means within said cylinder also comprises: seal retainer means underlying said piston means for retaining said port closure member thereunder and includes depending guide means extending through said valve port in lateral engagement therewith for aligning said closure means to said port and aligning said piston means within said cylinder in cooperation with said control rod.
Claim 6
Dependent Claim
228 words
In a water valve apparatus including a body having inlet and outlet chambers divided by a valve port, a port closure member for closing said port to the passage of water therethrough, and a cover means on said base having water passage means for venting water flow therethrough, the improvement comprising the provision of: cylinder insert means for insertion within said inlet chamber to receive a piston means therein, said cylinder insert means including an upper portion releasably connected into said cover means with the interior of said cylinder in communication with said water passage means in said cover; piston means associated with said port closure member wherein said piston means comprises an inner cup member, said inner cup member being provided with at least one port through a sidewall thereof; and an outer cup member positioned coaxially and partially about said inner cup member, said outer cup member having a sidewall formed with a plurality of openings smaller than said one port to form a screen around said inner cup through which inlet water must pass to enter said inner cup through said one port; and means for positioning said piston means within said cylinder insert means with one side thereof facing into said interior of cylinder insert means and an opposite side thereof exposed to the interior of said inlet chamber and any water pressure therein.
Claim 7
Dependent Claim
228 words
In a water valve apparatus including a body having inlet and outlet chambers divided by a valve port, a port closure member for closing said port to the passage of water therethrough, and a cover means on said base having water passage means for venting water flow therethrough, the improvement comprising the provision of: cylinder insert means for insertion within said inlet chamber to receive a piston means therein, said cylinder insert means including an upper portion releasably connected into said cover means with the interior of said cylinder in communication with said water passage means in said cover; piston means associated with said port closure member wherein said piston means comprises an inner cup member, said inner cup member being provided with at least one port through a sidewall thereof; and an outer cup member positioned coaxially and partially about said inner cup member, said outer cup member having a sidewall formed with a plurality of openings smaller than said one port to form a screen around said inner cup through which inlet water must pass to enter said inner cup through said one port; and means for positioning said piston means within said cylinder insert means with one side thereof facing into said interior of cylinder insert means and an opposite side thereof exposed to the interior of said inlet chamber and any water pressure therein.
Claim 8
Dependent Claim
43 words
The improvement in water valve apparatus of claim 5 wherein: said inner cup member one port is provided with a diameter no larger than approximately one half of the narrowest diameter of said water passage means venting water pressure from within said cylinder.
Claim 9
Dependent Claim
45 words
The water valve apparatus subassembly of claim 6 wherein: said piston means first and second parts comprise a pair of nested inner and outer members and said outer of said members has a multiported sidewall providing a filtering screen about said inner of said members.
Claim 10
Dependent Claim
231 words
A water valve apparatus subassembly of plastic parts adapted to be assembled into a brass valve body and cap, said subassembly comprising: cylinder means for providing a cylinder within said valve body to receive a water pressure actuated piston means, said cylinder means including an upper connector portion for connection into said brass valve cap and a depending skirt portion forming said cylinder; piston means for receiving water pressure on opposite sides thereof and including first and second assembled parts clamping a ring seal therebetween, said seal extending radially outwardly of said piston parts, said first assembled part comprising an inner cup member provided with at least one port through a sidewall thereof and said second assembled part comprising an outer cup member having a sidewall formed with a plurality of openings smaller than said one port to form a screen around said inner cup through which inlet water must pass to enter said inner cup through said one port; a valve stopper means for closing a valve port in said brass valve body; means for connecting said piston means and said stopper means for concurrent movement; and mEans for mounting said connected piston means and stopper means within said cylinder skirt portion for opening and closing said valve port in response to differential pressures within said valve apparatus between the interior of said cylinder above and below said piston means.
Claim 11
Dependent Claim
231 words
A water valve apparatus subassembly of plastic parts adapted to be assembled into a brass valve body and cap, said subassembly comprising: cylinder means for providing a cylinder within said valve body to receive a water pressure actuated piston means, said cylinder means including an upper connector portion for connection into said brass valve cap and a depending skirt portion forming said cylinder; piston means for receiving water pressure on opposite sides thereof and including first and second assembled parts clamping a ring seal therebetween, said seal extending radially outwardly of said piston parts, said first assembled part comprising an inner cup member provided with at least one port through a sidewall thereof and said second assembled part comprising an outer cup member having a sidewall formed with a plurality of openings smaller than said one port to form a screen around said inner cup through which inlet water must pass to enter said inner cup through said one port; a valve stopper means for closing a valve port in said brass valve body; means for connecting said piston means and said stopper means for concurrent movement; and mEans for mounting said connected piston means and stopper means within said cylinder skirt portion for opening and closing said valve port in response to differential pressures within said valve apparatus between the interior of said cylinder above and below said piston means.
Claim 12
Dependent Claim
248 words
A water valve apparatus subassembly of plastic parts adapted to be assembled into a brass valve body and cap, said subassembly comprising: cylinder means for providing a cylinder within said valve body to receive a water pressure actuated piston means, said cylinder means including an upper connector portion for connection into said brass valve cap and a depending skirt portion forming said cylinder; piston means for receiving water pressure on opposite sides thereof; a valve stopper means for closing a valve port in said brass valve body; means for connecting said piston means and said stopper means for concurrent movement; and means for mounting said connected piston means and stopper means within said cylinder skirt portion for opening and closing said valve port in response to differential pressures within said valve apparatus between the interior of said cylinder above and below said piston means, wherein said means for mounting said piston means within said cylinder skirt portion comprises: a control rod seated on one side of said piston means and slidably received through a port in said cylinder means aligned to said depending skirt portion; means for biasing said rod away from said cylinder and toward said piston means; and guide means provided on an opposite side of said piston means for extending through the valve port, said piston means being thereby guided for axial movement within said cylinder means relative to said valve port by the combined action of said control rod and port associated guide means.
Claim 13
Dependent Claim
248 words
A water valve apparatus subassembly of plastic parts adapted to be assembled into a brass valve body and cap, said subassembly comprising: cylinder means for providing a cylinder within said valve body to receive a water pressure actuated piston means, said cylinder means including an upper connector portion for connection into said brass valve cap and a depending skirt portion forming said cylinder; piston means for receiving water pressure on opposite sides thereof; a valve stopper means for closing a valve port in said brass valve body; means for connecting said piston means and said stopper means for concurrent movement; and means for mounting said connected piston means and stopper means within said cylinder skirt portion for opening and closing said valve port in response to differential pressures within said valve apparatus between the interior of said cylinder above and below said piston means, wherein said means for mounting said piston means within said cylinder skirt portion comprises: a control rod seated on one side of said piston means and slidably received through a port in said cylinder means aligned to said depending skirt portion; means for biasing said rod away from said cylinder and toward said piston means; and guide means provided on an opposite side of said piston means for extending through the valve port, said piston means being thereby guided for axial movement within said cylinder means relative to said valve port by the combined action of said control rod and port associated guide means.
Claim 14
Independent Claim
230 words
A method of assembling a water valve apparatus, including a valve body having inlet and outlet chambers divided by a partition in which a valve port is located and an upwardly opening internally threaded bore into which a cover is mountable, said cover having an internally threaded coupling member, comprising the steps of: assembling a pair of nested cup-like piston members together with a ring seal means disposed between flange means provided on each, a seal retainer having guide means depending therefrom to the underside of said members with a port closure means therebetween and holding all of the same in such assembled relation by a fastening means; positioning said assembled members, seal and closure means and retainer in said valve body with said retainer guide means passing through the valve body valve port; loosely positioning a control rod with a spring means thereabout in said valve body seated by a lower flange within said cup-like piston members; mounting a cylinder insert means by an externally threaded neck portion to said cover internally threaded coupling member with a cylindrical skirt portion of said insert means depending from said cover; locating said cylinder skirt portion over said control rod and moving it coaxially of and over said control rod and piston means to place all of the same in assembled relation upon turning of said cover down upon said valve body.
Claim 15
Independent Claim
230 words
A method of assembling a water valve apparatus, including a valve body having inlet and outlet chambers divided by a partition in which a valve port is located and an upwardly opening internally threaded bore into which a cover is mountable, said cover having an internally threaded coupling member, comprising the steps of: assembling a pair of nested cup-like piston members together with a ring seal means disposed between flange means provided on each, a seal retainer having guide means depending therefrom to the underside of said members with a port closure means therebetween and holding all of the same in such assembled relation by a fastening means; positioning said assembled members, seal and closure means and retainer in said valve body with said retainer guide means passing through the valve body valve port; loosely positioning a control rod with a spring means thereabout in said valve body seated by a lower flange within said cup-like piston members; mounting a cylinder insert means by an externally threaded neck portion to said cover internally threaded coupling member with a cylindrical skirt portion of said insert means depending from said cover; locating said cylinder skirt portion over said control rod and moving it coaxially of and over said control rod and piston means to place all of the same in assembled relation upon turning of said cover down upon said valve body.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |