US3122980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hautmann
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:29
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/081; G03B7/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN AN AUTOMATIC DIAPHRAGM ARRANGEMENT FOR PHOTOGRAPHIC CAMERAS WHEREIN TWO MOUNTED DIAPHRAGM VANES ARE OPERATED BY A PHOTOELECTRICALLY CONTROLLED MEASURING INSTRUMENT INCLUDING A ROTARY COIL, AND WHEREIN TWO ADJACENT PORTIONS OF THE VANES ARE SHAPED TO FORM THE EXPOSURE APERTURE PROPER; THE IMPROVEMENT CONSTITUTED BY OTHER PORTIONS OF THE TWO DIAPHRAGM VANES OVERLYING EACH OTHER AND HAVING RESPECTIVE CONTROL SLOTS OF SIMILAR SHAPE WHICH ARE SO ARRANGED THAT THEY INTERSECT IN EVERY POSITION THEREOF, TWO SEPARATE LATERALLY SPACED PIVOTS FOR MOUNTING SAID DIAPHRAGM VANES, A LEVER ARM EXTENDING FROM THE ROTARY COIL OF THE MEASURING INSTRUMENT, AND A SINGLE CONTROL PIN FIXED TO SAID LEVER ARM AND EXTENDING THROUGH SAID SLOTS AT THE POINT OF INTERSECTION OF SAID SLOTS FOR MOVING SAID VANES.
Claim 2
Dependent Claim
123 words
IN AN AUTOMATIC DIAPHRAGM ARRANGEMENT FOR PHOTOGRAPHIC CAMERAS WHEREIN TWO MOUNTED DIAPHRAGM VANES ARE OPERATED BY A PHOTOELECTRICALLY CONTROLLED MEASURING INSTRUMENT INCLUDING A ROTARY COIL, AND WHEREIN TWO ADJACENT PORTIONS OF THE VANES ARE SHAPED TO FORM THE EXPOSURE APERTURE PROPER; THE IMPROVEMENT CONSTITUTED BY OTHER PORTIONS OF THE TWO DIAPHRAGM VANES OVERLYING EACH OTHER AND HAVING RESPECTIVE CONTROL SLOTS OF SIMILAR SHAPE WHICH ARE SO ARRANGED THAT THEY INTERSECT IN EVERY POSITION THEREOF, TWO SEPARATE LATERALLY SPACED PIVOTS FOR MOUNTING SAID DIAPHRAGM VANES, A LEVER ARM EXTENDING FROM THE ROTARY COIL OF THE MEASURING INSTRUMENT, AND A SINGLE CONTROL PIN FIXED TO SAID LEVER ARM AND EXTENDING THROUGH SAID SLOTS AT THE POINT OF INTERSECTION OF SAID SLOTS FOR MOVING SAID VANES.
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) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |