Locking device for gymnastic apparatus or the like
Abstract
Abstract A LOCKING DEVICE FOR GYMNASTIC APPARATUS OR THE LIKE ADAPTED TO SELECTIVELY LOCK TELESCOPING MEMBERS IN VARIOUS POSITIONS OF THEIR SLIDABLE MOVEMENT. ONE OF THE TELESCOPING MEMBERS IS A HOLLOW TUBULAR MEMBER WHICH SLIDABLY RECEIVES A CYLINDRICAL MEMBER HAVING A PLURALITY OF SPACED APART SHOULDERS FORMED THEREIN. THE TUBULAR MEMBER HAS AN OPENING FORMED IN ITS WALL PORTION AND HAS A BORED SUPPORT RIGIDLY SECURED THERETO WHICH REGISTERS WITH THE OPENING. A BUSHING IS THREADABLY SECURED TO THE BORED SUPPORT AND HAS AN ELONGATED SHAFT MOVABLY EXTENDING THERETHROUGH, THE INNER END OF WHICH IS ADAPTED TO ENGAGE ONE OF THE SHOULDERS TO LIMIT THE RELATIVE MOVEMENT OF THE TELESCOPING MEMBERS. THE SHAFT MAY BE COMPLETELY REMOVED FROM THE APPARATUS BY THREADABLY REMOVING THE BUSHING FROM THE BORED SUPPORT.
Inventors
- 👤 Bill W Sorenson
Bibliographic Details
Claims Analysis
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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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |