US3086434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exposure control
Assignee: Bulova Watch Co Inc
•
Filing: 1961-05-22
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Granted: 1963-04-23
•
Expires: 1981-05-22
Abstract
No abstract record available.
Inventors
- 👤 Edelstein Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:44
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/091; G03B7/097
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
IN A CAMERA HAVING A LENS AND CAMERA APERTURE, A SHUTTER CONTROL MECHANISM COMPRISING AN ADJUSTABLE SHUTTER BLADE, A DENSITY WEDGE COAXIAL WITH SAID ADJUSTABLE SHUTTER BLADE, MEANS TO MAINTAIN A CONSTANT ANGULAR RELATION BETWEEN SAID ADJUSTABLE SHUTTER BLADE AND SAID DENSITY WEDGE, A FIXED SHUTTER BLADE COAXIAL WITH AND LOCATED BETWEEN SAID DENSITY WEDGE AND SAID ADJUSTABLE SHUTTER BLADE, A LIGHT RESPONSIVE TRANSDUCER MOUNTED ON SAID FIXED SHUTTER BLADE AND FACING SAID DENSITY WEDGE TO PROVIDE A CONTROL SIGNAL, SAID ADJUSTABLE SHUTTER BLADE, SAID FIXED SHUTTER BLADE AND SAID DENSITY WEDGE BEING DEPLOYED BETWEEN SAID LENS AND SAID CAMERA APERTURE WITH SAID DENSITY WEDGE BEING CLOSEST TO SAID LENS, AND MEANS RESPONSIVE TO VARIATIONS IN SAID CONTROL SIGNAL AND OPERATIVELY COUPLED TO SAID DENSITY WEDGE TO VARY THE ANGULAR POSITION OF SAID DENSITY WEDGE AND THE ADJUSTABLE SHUTTER BLADE IN A DIRECTION AND TO AN EXTENT TENDING TO MAINTAIN SAID CONTROL SIGNAL CONSTANT WHEREBY THE RESULTANT ANGULAR DISPLACEMENT BETWEEN SAID FIXED AND ADJUSTABLE SHUTTER BLADES CONSTITUTES A SHUTTER OPENING, AND MEANS TO ROTATE SAID SHUTTER CONTROL MECHANISM AS A UNIT RELATIVE TO SAID CAMERA APERTURE TO PROVIDE AN EXPOSURE IN ACCORDANCE WITH SAID SHUTTER OPENING.
Claim 2
Dependent Claim
196 words
IN A CAMERA HAVING A LENS AND CAMERA APERTURE, A SHUTTER CONTROL MECHANISM COMPRISING AN ADJUSTABLE SHUTTER BLADE, A DENSITY WEDGE COAXIAL WITH SAID ADJUSTABLE SHUTTER BLADE, MEANS TO MAINTAIN A CONSTANT ANGULAR RELATION BETWEEN SAID ADJUSTABLE SHUTTER BLADE AND SAID DENSITY WEDGE, A FIXED SHUTTER BLADE COAXIAL WITH AND LOCATED BETWEEN SAID DENSITY WEDGE AND SAID ADJUSTABLE SHUTTER BLADE, A LIGHT RESPONSIVE TRANSDUCER MOUNTED ON SAID FIXED SHUTTER BLADE AND FACING SAID DENSITY WEDGE TO PROVIDE A CONTROL SIGNAL, SAID ADJUSTABLE SHUTTER BLADE, SAID FIXED SHUTTER BLADE AND SAID DENSITY WEDGE BEING DEPLOYED BETWEEN SAID LENS AND SAID CAMERA APERTURE WITH SAID DENSITY WEDGE BEING CLOSEST TO SAID LENS, AND MEANS RESPONSIVE TO VARIATIONS IN SAID CONTROL SIGNAL AND OPERATIVELY COUPLED TO SAID DENSITY WEDGE TO VARY THE ANGULAR POSITION OF SAID DENSITY WEDGE AND THE ADJUSTABLE SHUTTER BLADE IN A DIRECTION AND TO AN EXTENT TENDING TO MAINTAIN SAID CONTROL SIGNAL CONSTANT WHEREBY THE RESULTANT ANGULAR DISPLACEMENT BETWEEN SAID FIXED AND ADJUSTABLE SHUTTER BLADES CONSTITUTES A SHUTTER OPENING, AND MEANS TO ROTATE SAID SHUTTER CONTROL MECHANISM AS A UNIT RELATIVE TO SAID CAMERA APERTURE TO PROVIDE AN EXPOSURE IN ACCORDANCE WITH SAID SHUTTER OPENING.
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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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |