US3281176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door lock
Assignee: American Motors Corp
•
Filing: 1964-08-21
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Granted: 1966-10-25
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Expires: 1984-08-21
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Mckey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:42
CPC Classifications
E; E05; E05B; E05B85/00; E05B85/20; E05B85/24; E05B85/26; E05B77/00; E05B77/36; E05B77/38; E05B85/04; E05B85/045; Y; Y10; Y10S; Y10S292/00; Y10S292/41; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1044; Y10T292/1045; Y10T292/1047; Y10T292/68; Y10T292/688
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
195 words
A LOCKING MECHANISM FOR LOCKING A SWINGING DOOR RELATIVE TO A DOOR FRAME, SAID LOCKING MECHANISM COMPRISING: (A) A SHAFT MOUNTED ON THE DOOR; (B) A LATCHING ELEMENT CARRIED ON THE SHAFT AND BEING ROTATIVE ABOUT THE AXIS OF THE SHAFT; (C) AN ELASTICALLY MOUNTED BUMPER ON THE SHAFT; (D) A KEEPER SECURED TO THE DOOR FRAME AND PROJECTING INTO THE PATH OF THE LATCHING ELEMENT WHEN THE DOOR IS SWUNG TO CLOSED POSITION RELATIVE TO THE DOOR FRAME; (E) A HOUSING HAVING AN END WALL OVERHANGING THE LATCHING ELEMENT, SAID END WALL HAVING A THROAT FOR ACCOMMODATING THE KEEPER WHEN THE DOOR IS IN CLOSED POSITION RELATIVE TO THE DOOR FRAME; (F) A CAM SURFACE ON THE HOUSING END WALL; (G) SAID KEEPER INCLUDING AN ELASTICALLY CARRIED EXTERIOR SURFACE FOR ENGAGING THE LATCHING ELEMENT AND THE CAM SURFACE AT CIRCUMFERENTIALLY SPACED LOCATIONS AND SAID KEEPER HAVING A PORTION ENGAGING THE BUMPER AT A LOCATION CIRCUMFERENTIALLY SPACED FROM THE LOCATIONS OF ENGAGEMENT OF THE KEEPER WITH THE LATCHING ELEMENT AND THE CAM SURFACE; AND (H) MEANS FOR RELEASABLY HOLDING THE LATCHING ELEMENT NON-ROTATIVE WHEN THE DOOR IS IN CLOSED POSITION RELATIVE TO THE DOOR FRAME.
References Cited (Backward Citations)
US3123390A
Cited
US2458751A
Cited
GB799420A
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US2814193A
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US2987336A
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US3065013A
Cited
US3111339A
Cited
US3206240A
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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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |