US3099197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Central photographic shutter
Assignee: Agfa Gevaert NV
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Filing: 1960-10-11
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Granted: 1963-07-30
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Expires: 1980-10-11
Abstract
No abstract record available.
Inventors
- 👤 Kiper Gerd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:15
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/08; G03B9/10; G03B9/18; G03B9/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A PHOTOGRAPHIC SHUTTER OF THE CENTRAL TYPE COMPRISING A PAIR OF ROTATABLY MOUNTED CONCENTRIC SECTOR-OPERATING RINGS, A NUMBER OF SHUTTER SECTORS, EACH OF SAID SECTORS BEING MOVABLY CONNECTED TO BOTH OF SAID RINGS TO CAUSE THEM TO OPEN AND CLOSE SAID SECTORS WHEN THE ANGULAR PHASE BETWEEN SAID RINGS VARIES FROM A NORMAL CONDITION AND RETURNS TO IT, DRIVING MEANS CONNECTED TO EACH OF SAID RINGS FOR IMPARTING SEPARATE DRIVING FORCES TO THEM, TENSIONING AND RELEASING MEANS CONNECTED TO SAID RINGS FOR CAUSING SAID RINGS TO SIMULTANEOUSLY COMMENCE THEIR DRIVEN MOVEMENT AND A RETARDING DEVICE BEING OPERATIVELY CONNECTED TO ONE OF SAID RINGS FOR SELECTIVELY DELAYING THE SPEED OF ITS ROTATION RELATIVE TO THE OTHER FOR MOMENTARILY VARYING SAID ANGULAR PHASE TO CAUSE SAID SECTORS TO OPEN AND CLOSE AN AMOUNT WHICH IS A FUNCTION OF SAID DELAY, AND A CONTROL ELEMENT OPERATIVELY ENGAGED WITH SAID RETARDING DEVICE TO PERMIT THE SHUTTER OPENING TIME AND PATTERN TO BE SELECTIVELY ADJUSTED.
Claim 2
Dependent Claim
160 words
A PHOTOGRAPHIC SHUTTER OF THE CENTRAL TYPE COMPRISING A PAIR OF ROTATABLY MOUNTED CONCENTRIC SECTOR-OPERATING RINGS, A NUMBER OF SHUTTER SECTORS, EACH OF SAID SECTORS BEING MOVABLY CONNECTED TO BOTH OF SAID RINGS TO CAUSE THEM TO OPEN AND CLOSE SAID SECTORS WHEN THE ANGULAR PHASE BETWEEN SAID RINGS VARIES FROM A NORMAL CONDITION AND RETURNS TO IT, DRIVING MEANS CONNECTED TO EACH OF SAID RINGS FOR IMPARTING SEPARATE DRIVING FORCES TO THEM, TENSIONING AND RELEASING MEANS CONNECTED TO SAID RINGS FOR CAUSING SAID RINGS TO SIMULTANEOUSLY COMMENCE THEIR DRIVEN MOVEMENT AND A RETARDING DEVICE BEING OPERATIVELY CONNECTED TO ONE OF SAID RINGS FOR SELECTIVELY DELAYING THE SPEED OF ITS ROTATION RELATIVE TO THE OTHER FOR MOMENTARILY VARYING SAID ANGULAR PHASE TO CAUSE SAID SECTORS TO OPEN AND CLOSE AN AMOUNT WHICH IS A FUNCTION OF SAID DELAY, AND A CONTROL ELEMENT OPERATIVELY ENGAGED WITH SAID RETARDING DEVICE TO PERMIT THE SHUTTER OPENING TIME AND PATTERN TO BE SELECTIVELY ADJUSTED.
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) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |