US3238713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compound engines for motive power
Assignee: Individual
•
Filing: 1963-10-16
•
Granted: 1966-03-08
•
Expires: 1983-10-16
Abstract
No abstract record available.
Inventors
- 👤 Wallace Frank Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:41
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/36; F02B; F02B37/00; F02B37/04; F02B37/10; F02B37/105; F02B37/12; F02B37/16; F02B37/164; F02B39/00; F02B39/02; F02B39/04; F16; F16H; F16H37/00; F16H2700/00; F16H2700/02; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A PROPULSION UNIT COMPRISING, IN COMBINATION, AN INTERNAL COMBUSTION ENGINE, A DIFFERENTIAL GEAR DRIVINGLY CONNECTED TO SAID ENGINE AND HAVING TWO OUTPUTS, AN OUTPUT SHAFT COUPLED TO ONE OF SAID OUTPUTS, A COMPRESSOR COUPLED TO THE OTHER OF SAID OUTPUTS, A TURBINE DESIGNED FOR EFFICIENT ENERGY CONVERSION UNDER STALL CONDITIONS DRIVINGLY CONNECTED TO SAID OUTPUT SHAFT, AND MEANS FOR DIRECTING THE GAS OUTPUT OF SAID COMPRESSOR TO BOTH SAID ENGINE AND SAID TURBINE, SAID MEANS BEING CLOSED TO THE
Claim 2
Dependent Claim
79 words
A PROPULSION UNIT COMPRISING, IN COMBINATION, AN INTERNAL COMBUSTION ENGINE, A DIFFERENTIAL GEAR DRIVINGLY CONNECTED TO SAID ENGINE AND HAVING TWO OUTPUTS, AN OUTPUT SHAFT COUPLED TO ONE OF SAID OUTPUTS, A COMPRESSOR COUPLED TO THE OTHER OF SAID OUTPUTS, A TURBINE DESIGNED FOR EFFICIENT ENERGY CONVERSION UNDER STALL CONDITIONS DRIVINGLY CONNECTED TO SAID OUTPUT SHAFT, AND MEANS FOR DIRECTING THE GAS OUTPUT OF SAID COMPRESSOR TO BOTH SAID ENGINE AND SAID TURBINE, SAID MEANS BEING CLOSED TO THE
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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |