US3890102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic action gas generator
Assignee: Erno Raumfahrttechnik GmbH
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Filing: 1972-12-13
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Granted: 1975-06-17
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Expires: 1992-12-13
Abstract
Abstract A catalytic action gas generator has a pressure vessel storing liquid to be decomposed by a catalyst. The latter is contained in a container inside of the vessel. The container has a destructible bottom and an outlet tube at the other end. The catalyst has consistency to define a tortuous flow path into which the liquid is driven by high pressure that develops shortly after contact between catalyst and decomposing liquid is permitted through the destroyed container bottom.
Inventors
- 👤 Dietrich Gathmann
- 👤 Walter Mayland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:26
CPC Classifications
B; B01; B01J; B01J7/00; B01J7/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
277 words
APPARATUS FOR GENERATING GAS BY CATALYTIC DECOMPOSITION OF A LIQUID, COMPRISING: A PRESURE VESSEL WITH A COMPLETELY CLOSED INTERIOR CONTAINING THE LIQUID, THE LIQUID HAVING A PARTICULAR SURFACE LEVEL IN THE VESSEL, A CONTAINER DISPOSED INSIDE OF THE VESSEL AND HAVING AN INLET DISPOSED NEAR THE BOTTOM OF THE VESSEL, BELOW SAID LEVEL, THE CONTAINER FURTHER HAVING OUTLET AND CONTAINING A CATALYTIC SUBSTANCE DEFINING A TORTUOUS PATH BETWEEN THE INLET AND THE OUTLET, AND HAVING SUBSTANTIAL RESISTANCE TO FLOW OF GAS THERETHROUGH, WHEREBY SIGNIFICANT PRESSURE IS NEEDED TO DRIVE THE LIQUID INTO AND THROUGH THE CATALYST, THE INLET BEING NORMALLY COVERED BY A BREAKABLE SEPARATING THE INTERIOR OF THE CONTAINER FROM ITS OUTSIDE, WHICH IS THE INTERIOR OF THE VESSEL, THE PARTITION BEING DESTRUCTIBLE, MEANS INCLUDED IN THE PRESSURE VESSEL AND BEING ACCESSIBLE FROM THE OUTSIDE OF THE VESSEL FOR EFFECTING DESTRUCTION OF SAID PARTITION FROM THE OUTSIDE OF THE VESSEL AND WITHOUT HAVING TO OPEN THE VESSEL SO THAT UPON DESTRUCTION OF THE PARTITION THE CATALYST IS EXPOSED TO THE LIQUID AS ENTERING THE CONTAINER THROUGH THE INLET AND CONTACTING THE CATALYST SO THAT GAS DEF DEVELOPS ADJACENT THE INLET, AND ACCUMULATES ABOVE SAID SURFACE LEVEL IN THE VESSEL, AND PRESSURIZES THE INTERIOR OF THE VESSEL, AND AN OUTLET DUCT FOR THE CONTAINER CONNECTED TO THE OUTLET THEREOF AND LEADING ALSO OUT OF THE VESSEL, SO THAT GAS DEVELOPED O CONTACT OF THE LIQUID WITH THE CATALYST AND HAVING PASSED THROUGH SAID TORTUOUS PATH MAY DISCHARGE, THE ACCUMULATED GAS INSIDE OF THE VESSEL ACTING AS PROPELLANT FOR DRIVING LIQUID INTO THE CATALYST TO SUSTAIN DEVELOPMENT OF GAS AND DISCHARGE OF SUCH GAS THROUGH THE OUTLET DUCT.
Claim 2
Dependent Claim
277 words
APPARATUS FOR GENERATING GAS BY CATALYTIC DECOMPOSITION OF A LIQUID, COMPRISING: A PRESURE VESSEL WITH A COMPLETELY CLOSED INTERIOR CONTAINING THE LIQUID, THE LIQUID HAVING A PARTICULAR SURFACE LEVEL IN THE VESSEL, A CONTAINER DISPOSED INSIDE OF THE VESSEL AND HAVING AN INLET DISPOSED NEAR THE BOTTOM OF THE VESSEL, BELOW SAID LEVEL, THE CONTAINER FURTHER HAVING OUTLET AND CONTAINING A CATALYTIC SUBSTANCE DEFINING A TORTUOUS PATH BETWEEN THE INLET AND THE OUTLET, AND HAVING SUBSTANTIAL RESISTANCE TO FLOW OF GAS THERETHROUGH, WHEREBY SIGNIFICANT PRESSURE IS NEEDED TO DRIVE THE LIQUID INTO AND THROUGH THE CATALYST, THE INLET BEING NORMALLY COVERED BY A BREAKABLE SEPARATING THE INTERIOR OF THE CONTAINER FROM ITS OUTSIDE, WHICH IS THE INTERIOR OF THE VESSEL, THE PARTITION BEING DESTRUCTIBLE, MEANS INCLUDED IN THE PRESSURE VESSEL AND BEING ACCESSIBLE FROM THE OUTSIDE OF THE VESSEL FOR EFFECTING DESTRUCTION OF SAID PARTITION FROM THE OUTSIDE OF THE VESSEL AND WITHOUT HAVING TO OPEN THE VESSEL SO THAT UPON DESTRUCTION OF THE PARTITION THE CATALYST IS EXPOSED TO THE LIQUID AS ENTERING THE CONTAINER THROUGH THE INLET AND CONTACTING THE CATALYST SO THAT GAS DEF DEVELOPS ADJACENT THE INLET, AND ACCUMULATES ABOVE SAID SURFACE LEVEL IN THE VESSEL, AND PRESSURIZES THE INTERIOR OF THE VESSEL, AND AN OUTLET DUCT FOR THE CONTAINER CONNECTED TO THE OUTLET THEREOF AND LEADING ALSO OUT OF THE VESSEL, SO THAT GAS DEVELOPED O CONTACT OF THE LIQUID WITH THE CATALYST AND HAVING PASSED THROUGH SAID TORTUOUS PATH MAY DISCHARGE, THE ACCUMULATED GAS INSIDE OF THE VESSEL ACTING AS PROPELLANT FOR DRIVING LIQUID INTO THE CATALYST TO SUSTAIN DEVELOPMENT OF GAS AND DISCHARGE OF SUCH GAS THROUGH THE OUTLET DUCT.
Claim 3
Dependent Claim
68 words
Apparatus as in claim 1, the partition and inlet being in the bottom of the container, said bottom having position close to or on the bottom of the vessel, said duct being flexible and the bottom of the vessel being curved to accommodate changes in orientation of the container in the vessel, the bottom of the container being covered by liquid for any orientation of the pressure vessel.
Claim 4
Dependent Claim
12 words
Apparatus as in claim 1, wherein the catalyst is sintered or granular.
References Cited (Backward Citations)
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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) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |