Patent CA567991A successfully refreshed from Google Patents.
US3089401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic shutter
Assignee: Compur Werk GmbH and Co
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Filing: 1960-04-18
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Granted: 1963-05-14
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Expires: 1980-04-18
Abstract
No abstract record available.
Inventors
- 👤 Gebele Kurt
- 👤 Singer Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:32
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A PHOTOGRAPHIC SHUTTER COMPRISING A SHUTTER HOUSING HAVING A BASEPLATE AND A LENS MOUNT EXTENDING FORWARDLY THEREFROM, A ROTATABLE MASTER MEMBER MOUNTED ON SAID BASEPLATE FOR RUNNING DOWN MOVEMENT FROM A TENSIONED POSITION TO A REST POSITION, GEAR RETARDING MECHANISM INCLUDING A FLYWHEEL AND A RESTORING SPRING MOUNTED ON SAID BASEPLATE FOR RETARDING SAID MASTER MEMBER DURING ITS RUNNING DOWN MOVEMENT FOR AN ADJUSTABLY VARIABLE LENGTH OF TIME, LEVER MEANS ARRANGED TO TRANSMIT THE DRIVING FORCE OF SAID MASTER MEMBER TO AN INPUT GEAR OF SAID GEAR RETARDING MECHANISM, SAID LEVER MEANS COMPRISING A PLURALITY OF INTERCONNECTED LEVERS INCLUDING A FIRST LEVER HAVING AN INPUT LUG WHICH PROJECTS INTO THE PATH OF MOVEMENT OF SAID MASTER MEMBER TO BE DISPLACED BY THE RUNNING DOWN MOVEMENT OF SAID MASTER MEMBER, SAID FIRST LEVER BEING FULCRUMED ON A TIMING LEVER WHICH IS ROTATABLE ABOUT A FIXED PIVOT ON SAID BASEPLATE AND A THIRD ONE OF SAID LEVERS HAVING AN ARCUATE RACK IN MESHING ENGAGEMENT WITH THE INPUT GEAR OF SAID GEAR RETARDING MECHANISM, A
Claim 2
Dependent Claim
172 words
A PHOTOGRAPHIC SHUTTER COMPRISING A SHUTTER HOUSING HAVING A BASEPLATE AND A LENS MOUNT EXTENDING FORWARDLY THEREFROM, A ROTATABLE MASTER MEMBER MOUNTED ON SAID BASEPLATE FOR RUNNING DOWN MOVEMENT FROM A TENSIONED POSITION TO A REST POSITION, GEAR RETARDING MECHANISM INCLUDING A FLYWHEEL AND A RESTORING SPRING MOUNTED ON SAID BASEPLATE FOR RETARDING SAID MASTER MEMBER DURING ITS RUNNING DOWN MOVEMENT FOR AN ADJUSTABLY VARIABLE LENGTH OF TIME, LEVER MEANS ARRANGED TO TRANSMIT THE DRIVING FORCE OF SAID MASTER MEMBER TO AN INPUT GEAR OF SAID GEAR RETARDING MECHANISM, SAID LEVER MEANS COMPRISING A PLURALITY OF INTERCONNECTED LEVERS INCLUDING A FIRST LEVER HAVING AN INPUT LUG WHICH PROJECTS INTO THE PATH OF MOVEMENT OF SAID MASTER MEMBER TO BE DISPLACED BY THE RUNNING DOWN MOVEMENT OF SAID MASTER MEMBER, SAID FIRST LEVER BEING FULCRUMED ON A TIMING LEVER WHICH IS ROTATABLE ABOUT A FIXED PIVOT ON SAID BASEPLATE AND A THIRD ONE OF SAID LEVERS HAVING AN ARCUATE RACK IN MESHING ENGAGEMENT WITH THE INPUT GEAR OF SAID GEAR RETARDING MECHANISM, A
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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |