US3885589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cock and pressure-reducer unit for liquefied-gas reservoirs
Assignee: Gurtner SA
•
Filing: 1973-05-16
•
Granted: 1975-05-27
•
Expires: 1993-05-16
Abstract
Abstract Cock and pressure-reducer unit for connecting a source of liquefied gas under pressure to a gas distribution network after reducing the pressure of the said gas, the said unit comprising notably a flow-limiting device, a stop cock and a pressurereducing device, said components being so arranged that the gas proceeding from the reservoir and supplied to the network passes successively through the flow-limiting device, the stop cock and the pressure-reducing device, said flow-limiting device and the said stop cock being mounted on a first body and the pressurereducing device being mounted on a second body sealingly fitted into said first body.
Inventors
- 👤 Jacques Iung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:25
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/30; F16K1/304; F16K1/306; F16K1/307; F17; F17C; F17C13/00; F17C13/04; 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; Y10T137/7837; Y10T137/7869; Y10T137/8593; Y10T137/87917
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
210 words
Cock and pressure-reducer unit for connecting a source of liquefied gas under pressure to a gas distribution network after reducing the pressure of the gas, said cock and pressure-reducer unit comprising first and second bodies, a flow-limiting device, a stop cock having a closed position preventing flow and an open position permitting flow, a pressure-reducing device having a pressure-reducing chamber, a seat in the latter chamber and valve means acting with said seat, said valve means being controlled by a manometric control chamber acted upon by the pressure of the gas at the inlet into the distribution network, and a maximum level gauge, wherein the aforesaid components are so arranged with respect to one another that gas proceeding from the source and supplied to a network passes successively through the flowlimiting device, the stop cock and the pressure-reducing device, said flow-limiting device and said stop cock being mounted on said first body, and the pressure-reducing device and its control chamber being mounted on said second body, said sEcond body being fitted sealingly into said first body and being removably connected thereto, whereby said stop cock may be placed in its closed position to permit said second body to be removed, as required, without flow of gas beyond said stop cock.
Claim 2
Dependent Claim
210 words
Cock and pressure-reducer unit for connecting a source of liquefied gas under pressure to a gas distribution network after reducing the pressure of the gas, said cock and pressure-reducer unit comprising first and second bodies, a flow-limiting device, a stop cock having a closed position preventing flow and an open position permitting flow, a pressure-reducing device having a pressure-reducing chamber, a seat in the latter chamber and valve means acting with said seat, said valve means being controlled by a manometric control chamber acted upon by the pressure of the gas at the inlet into the distribution network, and a maximum level gauge, wherein the aforesaid components are so arranged with respect to one another that gas proceeding from the source and supplied to a network passes successively through the flowlimiting device, the stop cock and the pressure-reducing device, said flow-limiting device and said stop cock being mounted on said first body, and the pressure-reducing device and its control chamber being mounted on said second body, said sEcond body being fitted sealingly into said first body and being removably connected thereto, whereby said stop cock may be placed in its closed position to permit said second body to be removed, as required, without flow of gas beyond said stop cock.
Claim 3
Dependent Claim
72 words
Cock and pressure-reducer unit according to claim 1, wherein a connecting orifice is provided in a wall of said pressure-reducing chamber opening into the latter chamber of the cock and pressure-reducer unit downstream of the stop cock and upstream of the pressure-reducing device, and a plug removably closing said connecting orifice, whereby in an emergency the latter plug may be removed and an emergency supply may be connected to said connecting orifice.
Claim 4
Dependent Claim
18 words
Cock and pressure-reducer unit according to claim 2, wherein said connecting orifice is provided in said first body.
Claim 5
Dependent Claim
93 words
Cock and pressure-reducer unit according to claim 1, wherein said second body ends at its base with a lower sleeve, said first body ends at its upper edge with an upper collar, said lower sleeve of said second body is fitted into said upper collar, the latter having a diameter which is equivalent to that of said sleeve, said sleeve being adapted to freely turn in said collar sealing means being provided between said sleeve and said collar, and axial retaining means ensuring the axial maintenance, each against the other, of said bodies.
Claim 6
Dependent Claim
63 words
Cock and pressure-reducer unit according to claim 1, wherein said first body and said second body have substantially vertical axes and are formed with ducts and chambers through which the gas passes and which are so arranged as to enable any condensate or liquid entrained into the cock and pressure-reducer unit to flow freely by gravity into a chamber or duct located upstream.
Claim 7
Dependent Claim
36 words
Cock and pressure-reducer unit according to claim 1, wherein said first and second bodies respectively have substantially central axes, and the axis of said first body being shifted with respect to that of the second body.
Claim 8
Dependent Claim
35 words
Cock and pressure-reducer unit according to claim 1, comprising a draining orifice closed by needle screw means substantially at the level of the seat of the pressure-reducing device and downstream with respect to said seat.
Claim 9
Dependent Claim
55 words
Cock and pressure-reducer unit according to claim 1, wherein above the seat of the pressure-reducing device, the chamber of the cock and pressure-reducing unit has a section which diminishes progressively, and a control rod connecting said valve means to said control manometric chamber above said seat, said rod being provided with protuberances in said section.
Claim 10
Dependent Claim
36 words
Cock and pressure-reducer unit according to claim 1, wherein an outlet duct of the cock and pressure-reducer unit leading to a distribution network is downwardly inclined from the cock and pressure-reducer unit to the distribution network.
Claim 11
Dependent Claim
64 words
Cock and pressure-reducer unit according to claim 1, wherein an atmospheric chamber of a control device of the pressure-reducing device communicates with the atmosphere through at least one orifice provided substantially at the height of a membrane of said control device and opening into a groove provided all around the said chamber said groove communicating with said atmospheric chamber through at least one orifice.
Claim 12
Dependent Claim
66 words
Cock and pressure-reducer unit according to claim 1, wherein above the seat of the pressure-reducing device a chamber of the cock and pressure-reducer unit has a section which diminishes progressively in an upward direction so that upon displacement of said valve means downwardly away from said seat any matter which tends to accumulate in said section will move downwardly out of said section to prevent blocking.
References Cited (Backward Citations)
US2119473A
Cited
US2103576A
Cited
US2307309A
Cited
US2362352A
Cited
US2405998A
Cited
US2854991A
Cited
US3386458A
Cited
US3521669A
Cited
US3561477A
Cited
US3547143A
Cited
US3604445A
Cited
US3693652A
Cited
US3795258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |