Patent US3945203A successfully refreshed from Google Patents.
US3945203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid-fueled rocket
Assignee: Individual
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Filing: 1973-10-04
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Granted: 1976-03-23
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Expires: 1993-10-04
Abstract
Abstract A liquid-fueled rocket has a storage tank for the fuel components of a liquid fuel and the storage tank is able to communicate with the combustion chambers of the rocket via normally closed valves. The storage tank is enclosed and the fuel components only in part fill the latter. A body of gas is confined in the storage tank and has a pressure exceeding that in the combustion chambers. Thus, when the valves are opened, the fuel components are caused to flow from the storage tank to the combustion chambers by virtue of the difference between the pressure of the gas and the pressure in the combustion chambers.
Inventors
- 👤 Lutz Tilo Kayser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:13
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/44; F02K9/50
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
172 words
In a liquid-fueled rocket, a combination comprising propulsion means including a combustion chamber; enclosed container means for accommodating the fuel components of a liquid fuel and including two container portions; a membrane separating said portions; normally closed valve means interposed between said combustion chamber and said container means; fuel components of a liquid fuel in said container means and only in part filling the same, one of said fuel components being accommodated in one of said container portions and another of said fuel components being accommodated in the other of said container portions; and a body of gas confined in said container means in one of said container portions only and having a pressure in excess of the pressure in said combustion chamber so that when said valve means is opened the pressure differential due to the difference between the pressure of said gas and the pressure in said combustion chamber causes tearing of said membrane and flow of the fuel components from both of said container portions into said combustion chamber.
Claim 2
Dependent Claim
172 words
In a liquid-fueled rocket, a combination comprising propulsion means including a combustion chamber; enclosed container means for accommodating the fuel components of a liquid fuel and including two container portions; a membrane separating said portions; normally closed valve means interposed between said combustion chamber and said container means; fuel components of a liquid fuel in said container means and only in part filling the same, one of said fuel components being accommodated in one of said container portions and another of said fuel components being accommodated in the other of said container portions; and a body of gas confined in said container means in one of said container portions only and having a pressure in excess of the pressure in said combustion chamber so that when said valve means is opened the pressure differential due to the difference between the pressure of said gas and the pressure in said combustion chamber causes tearing of said membrane and flow of the fuel components from both of said container portions into said combustion chamber.
Claim 3
Dependent Claim
22 words
In a rocket as defined in claim 1, wherein the gas confined in said container means comprising a single body of gas.
Claim 4
Dependent Claim
24 words
In a rocket as defined in claim 1, wherein said gas comprises a gas selected from the group consisting of nitrogen, helium and air.
Claim 5
Dependent Claim
21 words
In a rocket as defined in claim 1, wherein said pressure of said gas is between substantially 20 and 40 bars.
Claim 6
Dependent Claim
18 words
In a rocket as defined in claim 4, wherein said pressure of said gas is about 30 bars.
Claim 7
Dependent Claim
32 words
In a rocket as defined in claim 1, said container means having a predetermined volume; and wherein the volume of said gas amounts to substantially 20 to 50% of said predetermined volume.
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) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |