US3116898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vto inlet
Assignee: General Electric Co
•
Filing: 1962-03-23
•
Granted: 1964-01-07
•
Expires: 1982-03-23
Abstract
No abstract record available.
Inventors
- 👤 Donald E Clark
- 👤 Marvin R Simonson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:33
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/04; B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0016; B64C29/0025
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
147 words
IN A VERTICAL TAKE OFF AIRCRAFT HAVING, A BELLMOUTH FAN INLET DUCT THERETHROUGH FOR A LIFT FAN, A BULLETNOSE DISPOSED CENTRALLY OF SAID DUCT FOR SUPPORT OF SAID FAN, AN AIRFOIL VANE CONCENTRIC WITH AND DISPOSED IN SAID BELLMOUTH ABOVE SAID FAN AND SUBSTANTIALLY PARALLEL TO AND CONTIGUOUS WITH THE BELLMOUTH SURFACE AND SPACED THEREFROM FORMING A PASSAGE, SAID VANE EXTENDING AT LEAST THE FULL LENGTH OF THE BELLMOUTH SURFACE, A PLURALITY OF FIXED SPACED AIRFOIL VANES IN SAID DUCT ABOVE SAID FAN DISPOSED TRANSVERSE TO THE DIRECTION OF HORIZONTAL FLIGHT AND SECURED TO SAID CONCENTRIC VANE, A PLURALITY OF MOVABLE TRANSVERSE VANES ABOVE SAID FIXED VANES AND HINGED TO SAID FIXED VANES AND EXTENDING OVER SAID DUCT, SAID MOVABLE VANES EXTENDING BEYOND THE ENDS OF SAID FIXED VANES AND ANGLING OUTWARDLY AT THE ENDS THEREOF, AND MEANS TO MOVE SAID MOVABLE VANES TO CLOSE SAID DUCT.
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) | 1967-01-06 | 1967-07-08 | 1968-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-06 | 1971-07-08 | 1972-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-06 | 1975-07-08 | 1976-01-07 | $7700.00 | Window Closed / Lapsed |