Patent US3084889A successfully refreshed from Google Patents.
US3084889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic propeller drive systems
Assignee: Bombardier Inc
•
Filing: 1960-12-01
•
Granted: 1963-04-09
•
Expires: 1980-12-01
Abstract
No abstract record available.
Inventors
- 👤 Irbitis Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:16
CPC Classifications
B; B64; B64C; B64C11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN AIRCRAFT HAVING MULTIPLE TURBO TIP JET PROPELLER THRUST SYSTEMS, EACH OF SAID THRUST SYSTEMS INCLUDING A BLADED PROPELLER, TURBO TIP JET NOZZLES IN EACH OF THE BLADES OF SAID PROPELLER, A GAS PRODUCER LOCATED AHEAD OF THE SAID PROPELLER, MEANS TO FEED A FLOW OF GAS FROM SAID GAS PRODUCER THROUGH SAID BLADES TO THE SAID TIP JET NOZZLES, A COMMON DUCT INTERCONNECTING THE GAS PRODUCERS OF EACH OF SAID THRUST SYSTEMS, THE SAID COMMON DUCT FORMING A GAS ENERGY RESERVOIR COMMON TO ALL OF SAID THRUST SYSTEMS, AND MEANS TO ISOLATE EACH OF THE SAID THRUST SYSTEMS FROM THE SAID RESERVOIR WHILE THE SAID GAS PRODUCERS ARE OPERATING AND TO CONNECT ANY ONE OF THE SAID THRUST SYSTEMS TO THE SAID RESERVOIR WHEN ITS INDIVIDUAL GAS PRODUCER CEASES TO OPERATE.
Claim 2
Dependent Claim
132 words
IN AIRCRAFT HAVING MULTIPLE TURBO TIP JET PROPELLER THRUST SYSTEMS, EACH OF SAID THRUST SYSTEMS INCLUDING A BLADED PROPELLER, TURBO TIP JET NOZZLES IN EACH OF THE BLADES OF SAID PROPELLER, A GAS PRODUCER LOCATED AHEAD OF THE SAID PROPELLER, MEANS TO FEED A FLOW OF GAS FROM SAID GAS PRODUCER THROUGH SAID BLADES TO THE SAID TIP JET NOZZLES, A COMMON DUCT INTERCONNECTING THE GAS PRODUCERS OF EACH OF SAID THRUST SYSTEMS, THE SAID COMMON DUCT FORMING A GAS ENERGY RESERVOIR COMMON TO ALL OF SAID THRUST SYSTEMS, AND MEANS TO ISOLATE EACH OF THE SAID THRUST SYSTEMS FROM THE SAID RESERVOIR WHILE THE SAID GAS PRODUCERS ARE OPERATING AND TO CONNECT ANY ONE OF THE SAID THRUST SYSTEMS TO THE SAID RESERVOIR WHEN ITS INDIVIDUAL GAS PRODUCER CEASES TO OPERATE.
References Cited (Backward Citations)
US2501078A
Cited
US2780423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |