US3623329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for liquid rocket
Assignee: RTX Corp
•
Filing: 1960-04-12
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Granted: 1971-11-30
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Expires: 1980-04-12
Abstract
Abstract 1. IN A FUEL SYSTEM FOR A ROCKET HAVING AN INJECTOR AND A WALL HAVING COOLING PASSAGES THEREIN, A SOURCE OF CRYOGENIC FUEL, A MULTISTAGE PUMP HAVING A LOW PRESSURE STAGE AND A HIGH PRESSURE STAGE FOR DELIVERING THE FUEL UNDER PRESSURE, A CONDUIT FROM THE LOW PRESSURE STAGE TO THE INJECTOR HEAD, A PRESSURE RESPONSIVE VALVE IN SAID CONDUIT, A CONDUIT FROM THE HIGH PRESSURE STAGE TO THE COOLING PASSAGES, A SHUTOFF VALVE IN SAID CONDUIT, A TURBINE DRIVING SAID PUMP STAGES AND A CONDUIT FROM THE COOLING PASSAGES TO THE TURBINE AND FROM THE TURBINE TO THE INJECTOR.
Inventors
- 👤 Robert N Abild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:13
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/44; F02K9/56; F02K9/46; F02K9/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |