US3136527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric landing gear
Assignee: Individual
•
Filing: 1961-09-12
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Granted: 1964-06-09
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Expires: 1981-09-12
Abstract
No abstract record available.
Inventors
- 👤 Griffis Leroy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:55
CPC Classifications
B; B60; B60S; B60S9/00; B60S9/14; B60S9/16; B60S9/18; B60D; B60D1/00; B60D1/58; B60D1/66; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/1914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
FOR USE ON AND IN COMBINATION WITH A TRAILER INCLUDING AN UNDERFRAME HAVING A LONGITUDINAL CENTER BEAM, A TRANSVERSE CROSS BEAM SPACED REARWARDLY FROM THE REAR END OF SAID CENTER BEAM, AND A RETRACTIBLE LANDING GEAR ON THE UNDERFRAME INCLUDING A PAIR OF AXIALLY SPACED, ALIGNED TRANSVERSE OPERATING SHAFTS, AN ELECTRIC POWER UNIT FOR THE LANDING GEAR MOUNTED ON THE UNDERFRAME BETWEEN SAID OPERATING SHAFTS AND INCLUDING A FRAME STRUCTURE COMPRISING A LONGITUDINAL MEMBER EXTENDING BETWEEN THE REAR END OF SAID CENTER BEAM AND SAID CROSS BEAM, AN UPSTANDING PLATE AFFIXED TO ONE SIDE OF SAID LONGITUDINAL MEMBER, A TRANSVERSE POWER UNIT SHAFT DISPOSED BETWEEN SAID OPERATING SHAFTS AND JOURNALED AT AN INTERMEDIATE POINT THROUGH SAID PLATE, MEANS OPERATIVELY CONNECTING THE OPPOSITE ENDS OF SAID POWER UNIT SHAFT TO THE ADJACENT ENDS OF SAID OPERATING SHAFTS, A PAIR OF SELECTIVELY OPERABLE ELECTRIC MOTORS MOUNTED ON ONE SIDE OF THE PLATE, AND MEANS DRIVINGLY CONNECTING SAID MOTOR TO SAID POWER UNIT SHAFT.
Claim 2
Dependent Claim
161 words
FOR USE ON AND IN COMBINATION WITH A TRAILER INCLUDING AN UNDERFRAME HAVING A LONGITUDINAL CENTER BEAM, A TRANSVERSE CROSS BEAM SPACED REARWARDLY FROM THE REAR END OF SAID CENTER BEAM, AND A RETRACTIBLE LANDING GEAR ON THE UNDERFRAME INCLUDING A PAIR OF AXIALLY SPACED, ALIGNED TRANSVERSE OPERATING SHAFTS, AN ELECTRIC POWER UNIT FOR THE LANDING GEAR MOUNTED ON THE UNDERFRAME BETWEEN SAID OPERATING SHAFTS AND INCLUDING A FRAME STRUCTURE COMPRISING A LONGITUDINAL MEMBER EXTENDING BETWEEN THE REAR END OF SAID CENTER BEAM AND SAID CROSS BEAM, AN UPSTANDING PLATE AFFIXED TO ONE SIDE OF SAID LONGITUDINAL MEMBER, A TRANSVERSE POWER UNIT SHAFT DISPOSED BETWEEN SAID OPERATING SHAFTS AND JOURNALED AT AN INTERMEDIATE POINT THROUGH SAID PLATE, MEANS OPERATIVELY CONNECTING THE OPPOSITE ENDS OF SAID POWER UNIT SHAFT TO THE ADJACENT ENDS OF SAID OPERATING SHAFTS, A PAIR OF SELECTIVELY OPERABLE ELECTRIC MOTORS MOUNTED ON ONE SIDE OF THE PLATE, AND MEANS DRIVINGLY CONNECTING SAID MOTOR TO SAID POWER UNIT SHAFT.
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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |