Patent US3795258A successfully refreshed from Google Patents.
US3795258A
Expired / Lapsed
US
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Apparatus for distributing gas under pressure
Assignee: Gurtner SA
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Filing: 1973-05-16
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Granted: 1974-03-05
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Expires: 1993-05-16
Abstract
Abstract Apparatus for distributing gas stored under pressure such as propane or butane. The apparatus comprising, a pressure-reducing valve mounted between the source of said stored gas and the distributing network, a draining device is provided downstream of said pressure-reducing valve in proximity of the seat of said valve in view to permit positive elimination of the deposits tending to be formed at this level in the pressure-reducing device.
Inventors
- 👤 J Jung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:31
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/04; F16; F16K; F16K25/00; F16K25/02; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0382; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7809; Y10T137/7812; Y10T137/7818; Y10T137/7819; Y10T137/7822; Y10T137/7823; Y10T137/7825; Y10T137/8593; Y10T137/87917
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
143 words
Apparatus for distributing gas stored under pressure, such as petroleum liquefied-gas, in particular of the type containing 3 or 4 carbon atoms in a molecule, comprising a pressure-reducing device constituted essentially by a pressure-reducing valve having a pressure-reducing chamber, a seat formed in said chamber, a valve rod with a head having a seal bearing against said seat, control means for controlling the extent of opening of said seal relative to said seat, an inlet conduit connecting the source of said stored gas to one side of said pressure-reducing valve and an outlet conduit connecting said chamber on the other side of said pressure-reducing valve to the distributing network, said apparatus furthermore comprising at least one draining device opening into said pressure-reducing chamber downstream of said seat of the pressure-reducing valve in proximity to the bearing surface of said seal on its seat.
Claim 2
Dependent Claim
143 words
Apparatus for distributing gas stored under pressure, such as petroleum liquefied-gas, in particular of the type containing 3 or 4 carbon atoms in a molecule, comprising a pressure-reducing device constituted essentially by a pressure-reducing valve having a pressure-reducing chamber, a seat formed in said chamber, a valve rod with a head having a seal bearing against said seat, control means for controlling the extent of opening of said seal relative to said seat, an inlet conduit connecting the source of said stored gas to one side of said pressure-reducing valve and an outlet conduit connecting said chamber on the other side of said pressure-reducing valve to the distributing network, said apparatus furthermore comprising at least one draining device opening into said pressure-reducing chamber downstream of said seat of the pressure-reducing valve in proximity to the bearing surface of said seal on its seat.
Claim 3
Dependent Claim
25 words
Apparatus according to claim 1, wherein the outlet conduit connecting the apparatus to the network includes a lower portion in which is provided a bleeder.
Claim 4
Dependent Claim
53 words
Apparatus according to claim 1, wherein said control means of said valve comprise a control rod provided, right above the seal of said valve, with protuberances such as ridges and the said pressure-reducing chamber is substantially in the shape of a truncated cone growing narrower starting from the seat of the pressure-reducing valve.
Claim 5
Dependent Claim
51 words
Apparatus according to claim 1, wherein said control means of said valve comprise a manometric control device comprising an atmospheric chamber provided with at least one orifice communicating with the atmosphere and which is formed at a low point substantially at the level of the membrane of the said manometric device.
Claim 6
Dependent Claim
84 words
Apparatus according to claim 4, wherein the atmospheric chamber of the manometric control device communicates with the atmosphere through at least one orifice formed in the wall of the body of the apparatus and opening into a groove made all around the said chamber by cutting off the last turn of the thread by which the cap of the manometric device is screwed on its body, the said groove communicating with at least one orifice formed in the said cap at the same level.
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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |