US3759294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure regulator
Assignee: Superior Valve Co
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Filing: 1972-06-07
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Granted: 1973-09-18
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Expires: 1992-06-07
Abstract
Abstract The specification discloses a pressure regulating valve device for regulating to a relatively low uniform delivery pressure a high-pressure supply of fluid, such as a gas. The valve device includes a release valve arrangement which effects the release of high-pressure fluid that is undesirably trapped in the valve device due to leakage past a seal, such as O-ring seals, associated with a valve stem. The release valve arrangement operates responsively to shut-off of the supply of pressure to vent the trapped fluid via the normal delivery passages of the valve device.
Inventors
- 👤 R Kongelka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:10
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0663; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7801; Y10T137/7822; Y10T137/7823; Y10T137/7826; Y10T137/8593; Y10T137/877; Y10T137/87829; Y10T137/87837; Y10T137/87861; Y10T137/87869
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
196 words
In a pressure regulating valve device having a casing embodying an inlet chamber and an outlet chamber, a nozzle member fixed in said casing and providing fluid communication from the said inlet chamber to said outlet chamber, a valve member disposed within the inlet chamber and cooperating with a seat on said nozzle member to open and close said fluid communication, and fluid pressure responsive means subject to the opposing forces of a spring means and the fluid pressure in said outlet chamber for controlling the position of said valve member with respect to the seat on said nozzle member, wherein the improvement comprises an annular retainer member guidably disposed in a portion of said inlet chamber and having a sleeve portion for guiding said valve member, an O-ring on said retainer member providing a seal with the floor of said inlet chamber, spring means interposed between said valve member and said retainer member and yieldable to permit movement of said retainer member toward said valve member to break the seal of the said Oring with the floor of said inlet chamber and permit release flow past said retainer of fluid pressure trapped by said retainer.
Claim 2
Dependent Claim
196 words
In a pressure regulating valve device having a casing embodying an inlet chamber and an outlet chamber, a nozzle member fixed in said casing and providing fluid communication from the said inlet chamber to said outlet chamber, a valve member disposed within the inlet chamber and cooperating with a seat on said nozzle member to open and close said fluid communication, and fluid pressure responsive means subject to the opposing forces of a spring means and the fluid pressure in said outlet chamber for controlling the position of said valve member with respect to the seat on said nozzle member, wherein the improvement comprises an annular retainer member guidably disposed in a portion of said inlet chamber and having a sleeve portion for guiding said valve member, an O-ring on said retainer member providing a seal with the floor of said inlet chamber, spring means interposed between said valve member and said retainer member and yieldable to permit movement of said retainer member toward said valve member to break the seal of the said Oring with the floor of said inlet chamber and permit release flow past said retainer of fluid pressure trapped by said retainer.
Claim 3
Dependent Claim
61 words
In a pressure regulating valve device according to claim 1, wherein said valve member has a stem disposed coaxially and in telescopic relation with respect to the sleeve portion of said retainer member and wherein a second O-ring is interposed in sealing relation between a portion of the stem of said valve member and the sleeve portion of said retainer member.
Claim 4
Dependent Claim
82 words
In a pressure regulating valve device according to claim 2, wherein said retainer member is subject opposingly to the fluid pressure in said inlet chamber and the accumulated fluid pressure leaking past said second O-ring along the stem of the valve member, and wherein said retainer is shifted toward said valve member to release accumulated fluid pressure leaking past said second O-ring by the fluid pressure differential acting thereon in consequence of reduction of the supply fluid pressure in said inlet chamber.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |