Wedge-slide latch
Abstract
Abstract A LATCH HAVING A LATCHING CAM PIVOTALLY MOUNTED ON A PIVOT PIN TRANSVERSE TO AN ELONGATED LATCH HOUSING, THE CAM HAVING A CONFIGURATION SUCH THAT IT IS ROTATABLY DRIVEN INTO LOCKED POSITION WHEN A CLOSURE ARE PORTION ENGAGES A CATCH. THE LATCH HOUSING CONTAINS AN INTERNALLY MOVABLE SLIDE, WHICH SLIDE IS RESILIENTLY URGED INTO ENGAGEMENT WITH THE INTERNAL PART OF SAID CAM, BUT IS RETRACTABLE THEREFROM BY THE LATCH HANDLE. THE CAM-ENGAGING FACE OF SAID SLIDE IS A SURFACE WHICH IS SHAPED TO WEDGE UNDER A PART OF THE CAM, WHEN THE LATTER IS COUNTER ROTATED INTO LOCKING POSI- TION, AGAINST A TORSION SPRING TENDING TO ROTATE THE CAM INTO OPEN POSITION. ONLY WHEN THE SLIDE IS LONGITUDINALLY RETRACTED WITHIN THE HOUSING, BY OPERATION OF THE LATCH HANDLE, DOES THE CAM AGAIN ROTATE INTO UNLOCKED POSITION, PERMITTING THE LATCH TO BE OPENED.
Inventors
- 👤 Andre J Varrin
- 👤 William L Mccarter
- 👤 Henry O Geisler
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |