US3120274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic propeller drives
Assignee: Bombardier Inc
•
Filing: 1960-12-01
•
Granted: 1964-02-04
•
Expires: 1980-12-01
Abstract
No abstract record available.
Inventors
- 👤 Irbitis Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:14
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/04; B64C27/12; B64C27/16; B64C27/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A THRUST SYSTEM FOR AIRCRAFT COMPRISING A FIXED AIRCRAFT STRUCTURE AND A ROTATABLE PROPELLER HUB STRUCTURE MOUNTED ON SAID FIXED STRUCTURE, A SERIES OF HOLLOW BLADES MOUNTED ON SAID HUB STRUCTURE AND ROTATABLE THEREON ABOUT THEIR AXIS FOR BLADE PITCH ADJUSTMENT, SAID BLADES HAVING TIP JET NOZZLES, AN AIR COMPRESSOR AXIALLY MOUNTED ON SAID HUB STRUCTURE, THE SAID AIR COMPRESSOR HAVING STATOR AND ROTOR BLADE ELEMENTS, THE SAID STATOR BLADE ELEMENTS ROTATING WITH AND AT THE SAME SPEED AS SAID HUB STRUCTURE, A TURBO JET ENGINE MOUNTED IN SAID HUB STRUCTURE AND DRIVABLY CONNECTED TO SAID ROTOR BLADE ELEMENTS OF SAID AIR COMPRESSOR, MEANS TO PASS THE COMPRESSED AIR FROM SAID AIR COMPRESSOR AND THE PRODUCTS OF COMBUSTION FROM SAID TURBOJET ENGINE THROUGH SAID HOLLOW BLADES AND TO SAID TIP JET NOZZLES TO INDUCE A THRUST THEREAT EFFECTING ROTATION OF SAID HUB STRUCTURE, AND MEANS TO MODULATE THE EFFLUX OF GASES FROM SAID TIP JET NOZZLES, SAID LATTER MEANS COMPRIS-
Claim 2
Dependent Claim
160 words
A THRUST SYSTEM FOR AIRCRAFT COMPRISING A FIXED AIRCRAFT STRUCTURE AND A ROTATABLE PROPELLER HUB STRUCTURE MOUNTED ON SAID FIXED STRUCTURE, A SERIES OF HOLLOW BLADES MOUNTED ON SAID HUB STRUCTURE AND ROTATABLE THEREON ABOUT THEIR AXIS FOR BLADE PITCH ADJUSTMENT, SAID BLADES HAVING TIP JET NOZZLES, AN AIR COMPRESSOR AXIALLY MOUNTED ON SAID HUB STRUCTURE, THE SAID AIR COMPRESSOR HAVING STATOR AND ROTOR BLADE ELEMENTS, THE SAID STATOR BLADE ELEMENTS ROTATING WITH AND AT THE SAME SPEED AS SAID HUB STRUCTURE, A TURBO JET ENGINE MOUNTED IN SAID HUB STRUCTURE AND DRIVABLY CONNECTED TO SAID ROTOR BLADE ELEMENTS OF SAID AIR COMPRESSOR, MEANS TO PASS THE COMPRESSED AIR FROM SAID AIR COMPRESSOR AND THE PRODUCTS OF COMBUSTION FROM SAID TURBOJET ENGINE THROUGH SAID HOLLOW BLADES AND TO SAID TIP JET NOZZLES TO INDUCE A THRUST THEREAT EFFECTING ROTATION OF SAID HUB STRUCTURE, AND MEANS TO MODULATE THE EFFLUX OF GASES FROM SAID TIP JET NOZZLES, SAID LATTER MEANS COMPRIS-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-03 | 1967-08-05 | 1968-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-03 | 1971-08-05 | 1972-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-03 | 1975-08-05 | 1976-02-04 | $7700.00 | Window Closed / Lapsed |