Patent US3207053A successfully refreshed from Google Patents.
US3207053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic shutter assembly
Assignee: Compur Werk GmbH and Co
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Filing: 1963-05-07
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Granted: 1965-09-21
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Expires: 1983-05-07
Abstract
No abstract record available.
Inventors
- 👤 Singer Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:47
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/08; G03B9/10; G03B9/18; G03B9/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
A PHOTOGRAPHIC SHUTTER COMPRISING, IN COMBINATION, A SHUTTER HOUSING, A FIRST SHUTTER BLADE DRIVING RING ROTATABLE IN SAID HOUSING, A PLURALITY OF SHUTTER BLADES PIVOTALLY MOUNTED ON SAID FIRST RING, A SECOND SHUTTER BLADE RING CONCENTRIC WITH SAID FIRST RING AND ROTATABLE IN SAID HOUSING, PINS ON SAID SECOND RING ENGAGEABLE WITHIN SLOTS IN SAID SHUTTER BLADES, A MAIN OPERATING MEMBER ROTATABLE IN SAID HOUSING, SPRING MEANS URGING SAID MEMBER TO AN UNCOCKED POSITION, SHUTTER TRIP MEANS RETAINING SAID MEMBER IN A COCKED POSITION, A CRANK CONNECTING SAID MAIN OPERATING MEMBER WITH SAID SECOND BLADE RING WHEREBY UPON RELEASE OF SAID MAIN OPERATING MEMBER BY SAID SHUTTER TRIP LEVER, THE BLADE RING IS ROTATED TO OPEN AND CLOSE THE SHUTTER BLADES, AN OPENING LEVER PIVOTED ON SAID HOUSING, SAID OPENING LEVER HAVING A PAIR OF DRIVING ARMS SEPARATED BY A RECESS, A PIN ON SAID FIRST BLADE RING, SAID PIN BEING ENGAGED WITH AN END PORTION OF ONE OF SAID DRIVING ARMS TO PREVENT ROTATION OF SAID BLADE RING WHEN
Claim 2
Dependent Claim
170 words
A PHOTOGRAPHIC SHUTTER COMPRISING, IN COMBINATION, A SHUTTER HOUSING, A FIRST SHUTTER BLADE DRIVING RING ROTATABLE IN SAID HOUSING, A PLURALITY OF SHUTTER BLADES PIVOTALLY MOUNTED ON SAID FIRST RING, A SECOND SHUTTER BLADE RING CONCENTRIC WITH SAID FIRST RING AND ROTATABLE IN SAID HOUSING, PINS ON SAID SECOND RING ENGAGEABLE WITHIN SLOTS IN SAID SHUTTER BLADES, A MAIN OPERATING MEMBER ROTATABLE IN SAID HOUSING, SPRING MEANS URGING SAID MEMBER TO AN UNCOCKED POSITION, SHUTTER TRIP MEANS RETAINING SAID MEMBER IN A COCKED POSITION, A CRANK CONNECTING SAID MAIN OPERATING MEMBER WITH SAID SECOND BLADE RING WHEREBY UPON RELEASE OF SAID MAIN OPERATING MEMBER BY SAID SHUTTER TRIP LEVER, THE BLADE RING IS ROTATED TO OPEN AND CLOSE THE SHUTTER BLADES, AN OPENING LEVER PIVOTED ON SAID HOUSING, SAID OPENING LEVER HAVING A PAIR OF DRIVING ARMS SEPARATED BY A RECESS, A PIN ON SAID FIRST BLADE RING, SAID PIN BEING ENGAGED WITH AN END PORTION OF ONE OF SAID DRIVING ARMS TO PREVENT ROTATION OF SAID BLADE RING WHEN
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |