Patent US902170A successfully refreshed from Google Patents.
US3267753A
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US
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Landing gear control
Assignee: Acme Machine Works Inc
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Filing: 1963-08-02
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Granted: 1966-08-23
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Expires: 1983-08-02
Abstract
No abstract record available.
Inventors
- 👤 Jay A Harper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:42
CPC Classifications
B; B64; B64C; B64C25/00; B64C25/02; B64C25/08; B64C25/10; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/1892; Y10T74/1896; Y10T74/18976; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/20648; Y10T74/20666; Y10T74/20672; Y10T74/20678
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
107 words
IN A SYSTEM FOR CONTROLLING THE LANDING GEAR OF AN AIRCRAFT WHEREIN THE LANDING GEAR OPERATES IN RESPONSE TO A PLURALITY OF SWITCHES, A MANUALLY OPERABLE CONTROL MECHANISM, COMPRISING: A CONTROL LEVER MOVABLE FROM A LOWER POSITION TO LOWER THE LANDING GEAR TO AN UPPER POSITION TO RAISE THE LANDING GEAR; MEANS TO YIELDINGLY RESIST THE MOVEMENT OF THE LEVER AWAY FROM EITHER OF ITS TWO POSITIONS AND TO BOOST THE MOVEMENT OF THE LEVER AS IT APPROACHES EITHER OF ITS TWO POSITIONS; CAM MEANS TO OPERATE SAID SWITCHES; AND MEANS INCLUDING A RACK AND PINION OPERATIVELY CONNECTING SAID LEVER WITH SAID CAM MEANS FOR ACTUATION THEREOF.
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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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |