US3874630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety manual release solenoid valve
Assignee: Individual
•
Filing: 1973-01-26
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Granted: 1975-04-01
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Expires: 1993-01-26
Abstract
Abstract A safety valve for shutting off the flow of liquid petroleum gas carried by a motor vehicle has a normally unseated valve element retained by a temporary detent against tension of a spring which is biased in a direction urging the valve element to closed position. A solenoid when energized by closing the starter switch on the motor vehicle acts upon the metal valve stem to disengage the temporary detent and draw the valve element to closed position. The valve element is returned to open position by hand.
Inventors
- 👤 Richard T Novey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:52
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/07; F16K17/00; F16K17/02; F16K17/04; F16K17/0446; F16K17/0453; F16K41/00; F16K41/10; F16K41/103
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
290 words
A semiautomatic valve device for a liquid line comprising a housing having a valve chamber therein, an inlet port and an outlet port in communication between the valve chamber and the exteRior, a valve seat located between the chamber and the outlet port, a valve element reciprocatably mounted in said chamber for movement between open and closed positions, a stem on said valve element slidably mounted in said housing and accessible from the exterior, a solenoid mounted in said housing having a bore therethrough adapted to reciprocatably receive said valve stem acting as a plunger, and a temporary detent in said housing in releasable engagement with the valve stem when the valve element is in open position, and an electric circuit having a primary switch therein operable when said primary switch is closed to energize said solenoid and effect release of said temporary detent and closing of said valve device, a seal member of flexible material in the chamber separating said valve element from said valve seat, said seal comprising a transverse portion located clear of both said valve seat and said valve element in open position of the valve element and being in engagement simultaneously with said valve seat and said valve element in closed position of the valve, said seal having a resilient side wall structure adapted to elongate and contract with movement of said valve element, said housing comprising a first section in which said solenoid and said valve stem are located and a second section having a releasable engagement with the first section, said second section having a portion of said chamber therein, said seal being anchored in sealing engagement at the perimeter thereof with one only of said sections at the wall of said chamber.
Claim 2
Dependent Claim
290 words
A semiautomatic valve device for a liquid line comprising a housing having a valve chamber therein, an inlet port and an outlet port in communication between the valve chamber and the exteRior, a valve seat located between the chamber and the outlet port, a valve element reciprocatably mounted in said chamber for movement between open and closed positions, a stem on said valve element slidably mounted in said housing and accessible from the exterior, a solenoid mounted in said housing having a bore therethrough adapted to reciprocatably receive said valve stem acting as a plunger, and a temporary detent in said housing in releasable engagement with the valve stem when the valve element is in open position, and an electric circuit having a primary switch therein operable when said primary switch is closed to energize said solenoid and effect release of said temporary detent and closing of said valve device, a seal member of flexible material in the chamber separating said valve element from said valve seat, said seal comprising a transverse portion located clear of both said valve seat and said valve element in open position of the valve element and being in engagement simultaneously with said valve seat and said valve element in closed position of the valve, said seal having a resilient side wall structure adapted to elongate and contract with movement of said valve element, said housing comprising a first section in which said solenoid and said valve stem are located and a second section having a releasable engagement with the first section, said second section having a portion of said chamber therein, said seal being anchored in sealing engagement at the perimeter thereof with one only of said sections at the wall of said chamber.
Claim 3
Dependent Claim
23 words
A semiautomatic valve device as in claim 1 wherein the seal is anchored in sealing engagement with the first section of the housing.
Claim 4
Dependent Claim
212 words
A semiautomatic valve device for a liquid line comprising a housing having a valve chamber therein, an inlet port and an outlet port in communication between the valve chamber and the exterior, a valve seat located between the chamber and the outlet port, a valve element reciprocatably mounted in said chamber for movement between open and closed positions, a stem on said valve element slidably mounted in said housing and accessible from the exterior, a solenoid mounted in said housing having a bore therethrough adapted to reciprocatably receive said valve stem acting as a plunger, and a temporary detent in said housing in releasable engagement with the valve stem when the valve element is in open position, and an electric circuit having a primary switch therein operable when said primary switch is closed to energize said solenoid and effect release of said temporary detent and closing of said valve device, said detent comprising a permanent magnet in said housing in fixed position relative to said valve seat, a metal portion on the valve stem adapted to be located adjacent the magnet when the valve element is in open position and a non-magnetic portion of the valve stem adapted to be located adjacent the magnet when the valve element is in closed position.
Claim 5
Dependent Claim
212 words
A semiautomatic valve device for a liquid line comprising a housing having a valve chamber therein, an inlet port and an outlet port in communication between the valve chamber and the exterior, a valve seat located between the chamber and the outlet port, a valve element reciprocatably mounted in said chamber for movement between open and closed positions, a stem on said valve element slidably mounted in said housing and accessible from the exterior, a solenoid mounted in said housing having a bore therethrough adapted to reciprocatably receive said valve stem acting as a plunger, and a temporary detent in said housing in releasable engagement with the valve stem when the valve element is in open position, and an electric circuit having a primary switch therein operable when said primary switch is closed to energize said solenoid and effect release of said temporary detent and closing of said valve device, said detent comprising a permanent magnet in said housing in fixed position relative to said valve seat, a metal portion on the valve stem adapted to be located adjacent the magnet when the valve element is in open position and a non-magnetic portion of the valve stem adapted to be located adjacent the magnet when the valve element is in closed position.
Claim 6
Dependent Claim
32 words
A semiautomatic valve device as in claim 3 wherein there is an elongated bore in said housing in which said valve stem has a smooth sliding guided relationship throughout all positions thereof.
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) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |