Film feed mechanism
Abstract
Abstract A FILM FEED MECHANISM FOR INTERMITTENTLY ADVANCING A STRIP OF PERFORATED FILM BY A PLURALITY OF CLAWS ARRANGED IN THE PERFORATION PLANES OF THE FILM. EACH OF THE PLURALITY OF CLAWS DEFINES A PLURALITY OF CAM SLOTS, A PLURALITY OF HEART CAMS ARE POSITIONED IN THE CAM SLOTS AND ARE MOUNTED ON A PLURALITY OF SHAFTS. THE CLAWS ARE GUIDED AND DRIVEN BY HEART CAMS MOUNTED ON TWO SHAFTS ARRANGED ONE BEHIND THE OTHER AND DRIVEN IN THE SAME DIRECTION WITH THE CAMS TRAVELING IN PHASE EFFECT TO INSERT THE CLAWS INTO THE FILM PERFORMATIONS BY MOVING THE CLAWS IN THEIR RESPECTIVE PERFORATION PLANES IN SYNCHRONOUS MOVEMENT TO ENGAGE THE FILM SIMULTANEOUSLY IN THE PERFORATIONS ON BOTH SIDES OF THE FILM.
Inventors
- 👤 Joachim Gerb
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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |