US3303271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary shutter arrangement providing a plurality of frame rates
Assignee: Individual
•
Filing: 1964-05-21
•
Granted: 1967-02-07
•
Expires: 1984-05-21
Abstract
No abstract record available.
Inventors
- 👤 Klaus J Hecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:03
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
AN OPTICAL SHUTTER ARRANGEMENT FOR PROVIDING A DUAL FRAME RATE COMPRISING: (A) A PAIR OF SHUTTERING DISCS CENTRALLY MOUNTED ON A SHAFT MEANS FOR ROTATION TOGETHER AT THE SAME SPEED, (B) MEANS FOR DRIVING SAID SHAFT AND DISCS AT A DESIRED SPEED, (C) BOTH OF SAID DISCS HAVING AN EQUAL PLURALITY OF SLOTS POSITIONED CIRCUMFERENTIALLY THEREABOUT, (D) ONE OF SAID DISCS, IN ADDITION, HAVING A SINGLE ONE OF SAID SLOTS WIDER THAN THE OTHERS, (E) ACTUATABLE MEANS FOR ROTATABLY MOVING SAID ONE DISC ABOUT SAID SHAFT IN RELATION TO SAID OTHER DISC BY AN AMOUNT EQUAL TO THE WIDTH OF ONE OF SAID PLURALITY OF SLOTS, (F) WHERE IN A FIRST POSITION THE SLOTS IN BOTH DISCS BEING COINCIDENT WITH THE EXCEPTION OF THE WIDER PORTION OF SAID ONE WIDER SLOT THUS PROVIDING THE SAME NUMBER OF APERTURES FOR EXPOSURES UPON EACH REVOLUTION AS THERE ARE SLOTS PER DISC,
Claim 2
Dependent Claim
149 words
AN OPTICAL SHUTTER ARRANGEMENT FOR PROVIDING A DUAL FRAME RATE COMPRISING: (A) A PAIR OF SHUTTERING DISCS CENTRALLY MOUNTED ON A SHAFT MEANS FOR ROTATION TOGETHER AT THE SAME SPEED, (B) MEANS FOR DRIVING SAID SHAFT AND DISCS AT A DESIRED SPEED, (C) BOTH OF SAID DISCS HAVING AN EQUAL PLURALITY OF SLOTS POSITIONED CIRCUMFERENTIALLY THEREABOUT, (D) ONE OF SAID DISCS, IN ADDITION, HAVING A SINGLE ONE OF SAID SLOTS WIDER THAN THE OTHERS, (E) ACTUATABLE MEANS FOR ROTATABLY MOVING SAID ONE DISC ABOUT SAID SHAFT IN RELATION TO SAID OTHER DISC BY AN AMOUNT EQUAL TO THE WIDTH OF ONE OF SAID PLURALITY OF SLOTS, (F) WHERE IN A FIRST POSITION THE SLOTS IN BOTH DISCS BEING COINCIDENT WITH THE EXCEPTION OF THE WIDER PORTION OF SAID ONE WIDER SLOT THUS PROVIDING THE SAME NUMBER OF APERTURES FOR EXPOSURES UPON EACH REVOLUTION AS THERE ARE SLOTS PER DISC,
References Cited (Backward Citations)
US3232690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |