Patent US3858841A successfully refreshed from Google Patents.
US3858841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Individual
•
Filing: 1973-03-08
•
Granted: 1975-01-07
•
Expires: 1993-03-08
Abstract
Abstract Solenoid operated pilot controlled, pressure operated piston valve. The valve is in the form of a cartridge adjustable in the body to adjust the valve stroke. The valve member is of a piston type guided internally and externally with respect to the cartridge which is cylindrical. The cartridge carries the pilot valve and solenoid controlling the actuation pressure for the piston valve.
Inventors
- 👤 Larry E Haynes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:56
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/40; F16K31/406
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
151 words
A valve construction comprising a valve body having a valve seat therein, a valve cartridge adjustably and sealingly mounted in the body and adjustable toward and away from said seat, said valve cartridge carrying a valve member movable with respect to the valve seat for opening and closing the valve and means for actuating the valve member, said valve cartridge comprising a stem having the valve member carried thereby with a pressure chamber formed between the said stem and the valve member and means for controlling the pressure within said chamber for actuating the valve member, said last means including pilot valve means, said valve member being in the form of a piston having sliding relationship with said cartridge stem so as to be guided thereby, said valve member including a guide part fitting within a bore within the cartridge stem and a sleeve part into which the cartridge stem fits.
Claim 2
Dependent Claim
151 words
A valve construction comprising a valve body having a valve seat therein, a valve cartridge adjustably and sealingly mounted in the body and adjustable toward and away from said seat, said valve cartridge carrying a valve member movable with respect to the valve seat for opening and closing the valve and means for actuating the valve member, said valve cartridge comprising a stem having the valve member carried thereby with a pressure chamber formed between the said stem and the valve member and means for controlling the pressure within said chamber for actuating the valve member, said last means including pilot valve means, said valve member being in the form of a piston having sliding relationship with said cartridge stem so as to be guided thereby, said valve member including a guide part fitting within a bore within the cartridge stem and a sleeve part into which the cartridge stem fits.
Claim 3
Dependent Claim
18 words
A valve as in claim 1 wherein the said valve member has passageway means therethrough into said chamber.
Claim 4
Dependent Claim
87 words
In the valve construction in combination, a valve body having an inlet port and a valve seat, a cylindrical stem member in said body, a valve member including a part slidably and sealingly carried by said stem member and movable to open and close said valve seat, said member and said valve member, having mutually engageable guide means including the stem having a bore and said valve member having a part slidably engaged in the bore, said valve member having a sleeve part slidably engaging the stem.
Claim 5
Dependent Claim
87 words
In the valve construction in combination, a valve body having an inlet port and a valve seat, a cylindrical stem member in said body, a valve member including a part slidably and sealingly carried by said stem member and movable to open and close said valve seat, said member and said valve member, having mutually engageable guide means including the stem having a bore and said valve member having a part slidably engaged in the bore, said valve member having a sleeve part slidably engaging the stem.
Claim 6
Dependent Claim
34 words
A valve structure as in claim 3, including a washer member carried by said valve member, said seat and the washer member having mutually interfitting configurations whereby to effect centering of the valve member.
References Cited (Backward Citations)
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Cited
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US3410518A
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US3588039A
Cited
US3588039B1
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |