US3404614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive device for cameras
Assignee: Ernst Leitz Wetzlar GmbH
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Filing: 1966-05-25
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Granted: 1968-10-08
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Expires: 1986-05-25
Abstract
No abstract record available.
Inventors
- 👤 Naumann Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:11
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/42; G03B17/425
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A DRIVE DEVICE FOR A CAMERA FOR RELEASING THE SHUTTER AND ADVANCING THE FILM TRANSPORT, COMPRISING, IN COMBINATION: AN ELECTRIC MOTOR FOR CONNECTION WITH A CAMERA TO COCK AND RELEASE ITS SHUTTER AND ADVANCE ITS FILM TRANSPORT; AN ELECTRIC CIRCUIT FOR ENERGIZING SAID MOTOR AND INCLUDING A SHUT-OFF SWITCH FOR DEENERGIZING SAID MOTOR WHEN A PRESELECTED NUMBER OF PICTURES HAVE BEEN TAKEN; A TRIGGER FOR ENERGIZING SAID CIRCUIT WHILE THE TRIGGER IS ACTUATED; A PICTURE COUNTING ASSEMBLY FOR OPERATING SAID SHUT-OFF SWITCH AFTER A PRESELECTED NUMBER OF PICTURES HAVE BEEN TAKEN; AND MEANS CONNECTED BETWEEN SAID RELEASE AND SAID COUNTING ASSEMBLY FOR CLOSING THE SHUT-OFF SWITCH AND THEREBY ENERGIZING THE MOTOR, AFTER SUCH SWITCH HAS BEEN OPENED BY SAID COUNTING UNIT, BY RELEASING SAID TRIGGER AND ACTUATING IT AGAIN.
Claim 2
Dependent Claim
129 words
A DRIVE DEVICE FOR A CAMERA FOR RELEASING THE SHUTTER AND ADVANCING THE FILM TRANSPORT, COMPRISING, IN COMBINATION: AN ELECTRIC MOTOR FOR CONNECTION WITH A CAMERA TO COCK AND RELEASE ITS SHUTTER AND ADVANCE ITS FILM TRANSPORT; AN ELECTRIC CIRCUIT FOR ENERGIZING SAID MOTOR AND INCLUDING A SHUT-OFF SWITCH FOR DEENERGIZING SAID MOTOR WHEN A PRESELECTED NUMBER OF PICTURES HAVE BEEN TAKEN; A TRIGGER FOR ENERGIZING SAID CIRCUIT WHILE THE TRIGGER IS ACTUATED; A PICTURE COUNTING ASSEMBLY FOR OPERATING SAID SHUT-OFF SWITCH AFTER A PRESELECTED NUMBER OF PICTURES HAVE BEEN TAKEN; AND MEANS CONNECTED BETWEEN SAID RELEASE AND SAID COUNTING ASSEMBLY FOR CLOSING THE SHUT-OFF SWITCH AND THEREBY ENERGIZING THE MOTOR, AFTER SUCH SWITCH HAS BEEN OPENED BY SAID COUNTING UNIT, BY RELEASING SAID TRIGGER AND ACTUATING IT AGAIN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |