Key ejector locks
Abstract
Abstract A KEY EJECTOR LOCK IN WHICH NOVEL SPRING ACTUATING MEANS IS USED FOR AUTIMATICALLY EJECTING THE KEY FROM THE LOCK AS SOON AS THE TUMBLER BARREL IN THE LOCK IS RETURNED TO ITS NORMAL STARTING POSITION. IN A MODIFIED FORM OF THE INVENTION THE KEY EJECTING MEANS INCLUDES A TORSIONAL SPRING THAT IS COMPRESSED WHEN THE KEY IS INSERTED INTO THE LOCK AND THE SPRING IS GIVEN A TORSIONAL WHEN THE KEY IS ROTATED IN ONE DIRECTION IN THE LOCK FOR OPENING THE LOCK. THE TORSIONAL FORCE OF THE SPRING AIDS IN ROTATING THE TUMBLER BARREL AND THE KEY IN THE REVERSE DIRECTION WHEN THE KEY IS FREED SO THAT THE KEY IS RETURNED TO ITS INITIAL POSITION AND THEN THE EXPANDING FORCE OF THE COMPRESSED SPRING IS SUFFICIENT TO EJECT THE KEY FROM THE LOCK.
Inventors
- 👤 Alfred A Kleebauer
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |