Device for automatically cleaning electrical contact surfaces in photographic apparatus
Abstract
Abstract IN PHOTOGRAPHIC APPARATUS SUCH AS A STILL PICTURE OR MOVING PICTURE CAMERA, A DEVICE FOR AUTOMATICALLY CLEANING THE CONNECTED SURFACES OF AN INSTALLED ELECTRICAL CELL AND MATING CIRCUIT CONTACTS UTILIZES AN ACTUATING MEMBER THAT EXTENDS INTO THE CELL HOLDER FOR ENGAGEMENT WITH EITHER THE CELL ITSELF OR ONE OF THE MATING CONTACTS AND WHICH IS MOVABLE TO EFFECT RELATIVE MOVEMENT BETWEEN THE CELL AND AT LEAST ONE OF THE CONTACTS IN RESPONSE TO THE POSITIONING OF AN ASSOCIATED MEMBER, SUCH AS A FLASHBULB, FLASHCUBE, OR FILM MAGAZINE, IN OPERATIVE RELATION OF THE APPARATUS, OR IN RESPONSE TO THE PERFORMANCE OF SOME OTHER FUNCTION THAT IS A PREREQUISITE TO THE PROPER OPERATION OF SUCH APPARATUS.
Inventors
- 👤 Horst Simon
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 |