US3363420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion seal
Assignee: RTX Corp
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Filing: 1965-01-11
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Granted: 1968-01-16
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Expires: 1985-01-11
Abstract
No abstract record available.
Inventors
- 👤 David L Bogue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:11
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/08; F04D29/10; F04D29/106
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN COMBINATION IN AN ENGINE HAVING A COMBUSTION CHAMBER, AN OXIDIZER SUPPLY FOR BURNING IN SAID CHAMBER, A FUEL SUPPLY FOR BURNING IN SAID CHAMBER, A PUMP FOR ONE OF SAID FLUIDS HAVING AN INLET AND OUTLET, A TURBINE FOR DRIVING SAID PUMP, DRIVE MEANS INTERCONNECTING SAID TURBINE AND PUMP, SEAL MEANS LOCATED BETWEEN SAID PUMP AND TURBINE, SAID SEAL MEANS HAVING A PREDETERMINED LEAKAGE, A MIXING CHAMBER FOR BURNING SAID LEAKAGE, MEANS FOR DIRECTING SAID LEAKAGE INTO SAID MIXING CHAMBER, MEANS FOR DIRECTING SAID OTHER FLUID INTO SAID MIXING CHAMBER, SAID LEAKAGE BEING BURNED IN SAID CHAMBER, SAID MIXING CHAMBER BEING CONNECTED TO SAID TURBINE SO THAT THE FLOW PATH THROUGH SAID TURBINE AND MIXING CHAMBER ARE IN SERIES.
Claim 2
Dependent Claim
120 words
IN COMBINATION IN AN ENGINE HAVING A COMBUSTION CHAMBER, AN OXIDIZER SUPPLY FOR BURNING IN SAID CHAMBER, A FUEL SUPPLY FOR BURNING IN SAID CHAMBER, A PUMP FOR ONE OF SAID FLUIDS HAVING AN INLET AND OUTLET, A TURBINE FOR DRIVING SAID PUMP, DRIVE MEANS INTERCONNECTING SAID TURBINE AND PUMP, SEAL MEANS LOCATED BETWEEN SAID PUMP AND TURBINE, SAID SEAL MEANS HAVING A PREDETERMINED LEAKAGE, A MIXING CHAMBER FOR BURNING SAID LEAKAGE, MEANS FOR DIRECTING SAID LEAKAGE INTO SAID MIXING CHAMBER, MEANS FOR DIRECTING SAID OTHER FLUID INTO SAID MIXING CHAMBER, SAID LEAKAGE BEING BURNED IN SAID CHAMBER, SAID MIXING CHAMBER BEING CONNECTED TO SAID TURBINE SO THAT THE FLOW PATH THROUGH SAID TURBINE AND MIXING CHAMBER ARE IN SERIES.
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) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |