Rotatable turnstile construction
Abstract
Abstract A ROTATABLE TURNSTILE CONSTRUCTION ADAPTED FOR USE IN SUPERMARKETS, THEATERS, AUDITORIUMS AND THE LIKE AND INCLUDING A COMPACT LIGHT WEIGHT READILY ASSEMBLED MOUNTING MEANS SEPARABLE FROM A POST AND HAVING ROTATABLE ARM MEANS ASSOCIATED THEREWITH AND PROVIDED WITH CAM MEANS FOR LOCATING AND CENTERING TURNSTILE ARMS TRANSVERSE TO THE PASSAGEWAY. RELEASABLE LOCK MEANS ARE PROVIDED TO SECURE EACH ARM IN PASSAGEWAY CLOSING POSITION, THE LOCK MEANS INCLUDING A TWO-POSITION LATCHABLE MEANS, ONE POSITION BEING LOCKED POSITION AND THE OTHER POSITION BEING A HOLD OPEN POSITION. THE CONSTRUCTION ALSO INCLUDES A NOVEL ARRANGEMENT FOR CAM FOLLOWER BIASING MEANS WHICH FACILITATES ASSEMBLY OF THE CONSTRUCTION.
Inventors
- 👤 William T Alvarado
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |