Method for handling and positioning film
Abstract
Abstract A FILM HANDLING ARRANGEMENT WHICH REPEATEDLY POSITIONS FILM FOR SELECTIVE EXPOSURE IN A PHOTOCOMPOSITION PROCESS. A FILM FEED USES PULSE MOTOR DRIVEN PINCH ROLLS TO WITHDRAW A PRECISE FILM LENGTH FROM A SUPPLY. A ROTARY KNIFE CROSSES AND SERVES THE FILM, APPLYING FORCES ONLY PERPENDICULAR TO THE FILM TO AVOID DAMAGING THE FILM. MOVABLE IN MUTUALLY PERPENDICULAR X AND Y DIRECTIONS, A VACUUM PLATEN SEIZES THE LENGTH OF FILM JUST BEFORE IT IS SEVERED AND, FOLLOWING CUTTING, PRECISELY POSITIONS THE FILM FOR EXPOSURE BY A CATHODE RAY TUBE. FOR EACH EXPOSURE, THE PLATEN IS POSITIONED BY MUTUALLY PERPENDICULAR PRECISION LEAD SCREWS DRIVEN BY X AND Y POSITIONING PULSE MOTORS. WHEN ALL DESIRED INFORMATION HAS BEEN RECORDED BY REPEATED EXPOSURES, THE PLATEN MOVES DIRECTLY BENEATH A FILM EXPORT DEVICE. A PAIR OF FILM EXPORT PINCH ROLLS CLOSES UPON A FREE FILM EDGE AND WITHDRAWS THE FILM FOR STORAGE OR FURTHER PROCESSING.
Inventors
- 👤 Brian M Chapman
Bibliographic Details
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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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |