Patent US3917461A successfully refreshed from Google Patents.
US3917461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for production of gaseous products
Assignee: Siemens AG
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Filing: 1973-02-15
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Granted: 1975-11-04
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Expires: 1993-02-15
Abstract
Abstract Apparatus for producing a gas from a liquid decomposable into the gas, comprising first and second fluid-tight chambers, a gravity supply source of the liquid, and connected to the first chamber for gravity flow thereto through a check valve preventing reverse flow, the first chamber being connected for gravity liquid flow to the second chamber through a check valve preventing reverse flow, means for enclosing fluid-tightly and decomposing the liquid to the gas under pressure and connected to receive a gravity liquid flow from the second chamber through a pressure-responsive flow control valve and having a gas output conduit for serving a consumer, a branch conduit connected to this output conduit and to the second chamber and to said flow control valve to render the latter responsive to the branch line''s pressure, and means responsive to the liquid level in the first chamber for controlling the gravity flow thereto from said source to maintain a predetermined liquid level in this first chamber.
Inventors
- 👤 Dieter Kuhl
- 👤 Manfredo Marchetto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:29
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/06; H01M8/0606; B; B01; B01J; B01J7/00; B01J7/02; C; C01; C01B; C01B13/00; C01B13/02; C01B13/0203; C01B13/0211; C01B13/0214; C01B3/00; C01B3/02; C01B3/04; C01B3/06; C01B3/061; C01B3/08; C01B3/10; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/36; Y02E60/50; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
163 words
APPARATUS FOR PRODUCING A GAS FROM A LIQUID DECOMPOSABLE INTO THE GAS, COMPRISING FRIST AND SECOND FLUID-TIGHT CHAMBERS, A GRAVITY SUPPLY SOURCE OF THE LIQUID SAID GRAVITY SUPPLY SOURCE BEING CONNECTED TO THE FRIST CHAMBER FOR GRAVITY FLOW THERETO THROUGH A CHECK VALVE PREVENTING REVERSE FLOW, THE FRIST CHAMBER BEING CONNECTED FOR GRAVITY LIQUID FLOW TO THE SECOND CHAMBER THROUGH A CHECK-VALVE PREVENTING REVERSE FLOW, MEANS FOR ENCLOSING FLUID-THIGHTLY AND DECOMPOSING THE LIQUID TO THE GAS UNDER PRESSURE AND CONNECTED TO RECEIVE A GRAVITY LIQUID FLOW FROM THE SECOND CHAMBER THROUGH A PRESSURE-RESPONSIVE FLOW CONTROL VALVE AND HAVING A GAS OUTPUT CONDUIT FOR SERVING A CONSUMER, A BRANCH CONDUIT CONNECTED TO THE OUTPUT CONDUIT AND TO THE FRIST AND THE SECOND CHAMBER AND TO SAID FLOW CONTROL VALVE AND MEANS RESPONSIVE TO THE LIQUID LEVEL IN THE FRIST CHAMBER WHICH VENTS SAID FRIST CHAMBER TO CONTROL THE GRAVITY FLOW THERETO FROM SAID SOURCE TO MAINTAIN A PREDETERMINED LIQUID LEVEL IN THE FRIST CHAMBER.
Claim 2
Dependent Claim
163 words
APPARATUS FOR PRODUCING A GAS FROM A LIQUID DECOMPOSABLE INTO THE GAS, COMPRISING FRIST AND SECOND FLUID-TIGHT CHAMBERS, A GRAVITY SUPPLY SOURCE OF THE LIQUID SAID GRAVITY SUPPLY SOURCE BEING CONNECTED TO THE FRIST CHAMBER FOR GRAVITY FLOW THERETO THROUGH A CHECK VALVE PREVENTING REVERSE FLOW, THE FRIST CHAMBER BEING CONNECTED FOR GRAVITY LIQUID FLOW TO THE SECOND CHAMBER THROUGH A CHECK-VALVE PREVENTING REVERSE FLOW, MEANS FOR ENCLOSING FLUID-THIGHTLY AND DECOMPOSING THE LIQUID TO THE GAS UNDER PRESSURE AND CONNECTED TO RECEIVE A GRAVITY LIQUID FLOW FROM THE SECOND CHAMBER THROUGH A PRESSURE-RESPONSIVE FLOW CONTROL VALVE AND HAVING A GAS OUTPUT CONDUIT FOR SERVING A CONSUMER, A BRANCH CONDUIT CONNECTED TO THE OUTPUT CONDUIT AND TO THE FRIST AND THE SECOND CHAMBER AND TO SAID FLOW CONTROL VALVE AND MEANS RESPONSIVE TO THE LIQUID LEVEL IN THE FRIST CHAMBER WHICH VENTS SAID FRIST CHAMBER TO CONTROL THE GRAVITY FLOW THERETO FROM SAID SOURCE TO MAINTAIN A PREDETERMINED LIQUID LEVEL IN THE FRIST CHAMBER.
Claim 3
Dependent Claim
55 words
The apparatus of claim 1 in which the first chamber is connected for gas flow therefrom to the second chamber above the predetermined liquid levels therein through a check valve preventing reverse flow, and said branch conduit connects with the second chamber via the first chamber and the last-named check valve above said liquid level.
Claim 4
Dependent Claim
27 words
The apparatus of claim 1 in which said pressure responsive valve connects with said decomposing means through a check valve preventing reverse flow from the decomposing means.
Claim 5
Dependent Claim
16 words
The apparatus of claim 1 in which said branch conduit connects directly with the second chamber.
Claim 6
Dependent Claim
29 words
The apparatus of claim 1 having additionally shut-off valves in the flow connection between said source and the first chamber and between the second chamber and said decomposing mEans.
Claim 7
Dependent Claim
23 words
The apparatus of claim 1 in which said branch conduit connects with said output conduit through a vapor condenser and a water separator.
Claim 8
Dependent Claim
32 words
The apparatus of claim 1 in which said branch conduit has means for preventing a flow of liquid from the second chamber back to the decomposing means via the gas output conduit.
Claim 9
Dependent Claim
34 words
The apparatus of claim 1 wherein said liquid level responsive means is a three way valve arranged in said branch line ahead of the point where said branch line opens into said first chamber.
Claim 10
Dependent Claim
19 words
The apparatus of claim 8 further comprising a float situated in said first chamber to operate said three-way valve.
Claim 11
Dependent Claim
29 words
The apparatus of claim 1 further comprising an overpressure valve arranged at least in one of said first chamber, said second chamber and said means for decomposing the liquid.
Claim 12
Dependent Claim
30 words
The apparatus of claim 1 further comprising a pressure-reducing device in said output conduit, said device being located after the connection with the branch conduit and prior to the consumer.
Claim 13
Dependent Claim
13 words
The apparatus of claim 1 further comprising a filter in said branch line.
Claim 14
Dependent Claim
14 words
The apparatus of claim 1 further comprising a gas reservoir in said branch line.
Claim 15
Dependent Claim
59 words
The apparatus of claim 1 wherein said means for decomposing includes at least one column of catalyst carriers, said carriers being arranged on top of each other with each carrier containing catalytic material, means for spacing said carriers apart from each other, a line connected to each column for feeding in liquid and an outlet for receiving decomposition products.
Claim 16
Dependent Claim
20 words
The apparatus of claim 14 wherein said carriers are porous sintered blocks and said means for spacing are insulating beads.
Claim 17
Dependent Claim
22 words
The apparatus of claim 15 wherein said sintered blocks are provided with passage openings running through said blocks parallel to one another.
Claim 18
Dependent Claim
21 words
The apparatus of claim 15 wherein at least one of said sintered blocks and said insulating beads consist of ceramic material.
Claim 19
Dependent Claim
21 words
The apparatus of claim 14 further comprising a tank of asbestos cement enclosing said means for enclosing and decomposing the liquid.
Claim 20
Dependent Claim
178 words
The apparatus of claim 1 wherein said flow control valve includes a housing having three chambers, a first of said chambers being adapted for receiving a controlling medium, a second of said chambers being adapted for receiving a medium to be controlled, and a third of said chambers situated between said first and second of said chambers, movable diaphragms hermetically separating said third chamber from said first and second of said chambers, the effective area of a first diaphragm closing off said first chamber for the controlling medium being larger than the effective area of a second diaphragm closing off said second chamber for the medium to be controlled, said two diaphragms being rigidly connected with each other for force transmission therebetween, said first chamber having an opening for feeding in the controlling medium; at least two further openings being provided for passing the medium to be controlled through said second chamber whereby a change in position of said second movable diaphragm varies the clear flow cross section of the medium to be controlled in said second chamber.
Claim 21
Dependent Claim
27 words
The apparatus of claim 19 further comprising a post connecting said two diaphragms with each other and a return spring biasing said post towards said first chamber.
Claim 22
Dependent Claim
46 words
The apparatus of claim 20 wherein said return spring is a helical spring arranged in the third chamber and wherein said flow control valve has a housing including a projection abutting one end of said spring with the opposite end of said spring abutting said post.
Claim 23
Dependent Claim
20 words
The apparatus of claim 20 wherein said spring is adjustable by means of an adjustment ring connected to said post.
Claim 24
Dependent Claim
39 words
The apparatus of claim 19 wherein at least one of said two apertures opening into said second chamber forms a valve seat and wherein a valve cone for seating in said valve seat is secured to said seconD diaphragm.
Claim 25
Dependent Claim
13 words
The apparatus of claim 19 wherein each said diaphragm is made of polytetrafluorethylene.
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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) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |