US3237736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic contact printer apparatus
Assignee: Individual
•
Filing: 1964-01-09
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Granted: 1966-03-01
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Expires: 1984-01-09
Abstract
No abstract record available.
Inventors
- 👤 Frank S Siok
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:29
CPC Classifications
F; F16; F16D; F16D11/00; F16D11/02; F16D11/04; B; B41; B41B; B41B13/00; G; G03; G03B; G03B27/00; G03B27/02; G03B27/04; G03B27/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
220 words
A CLUTCH FOR DRIVING A SHAFT A PREDETERMINED PORTION OF A REVOLUTION, COMPRISING, IN COMBINATION: A ROTATABLE DRIVE WHEEL HAVING A PLURALITY OF OPENINGS FORMED IN ONE SIDE SURFACE THEREOF IN A CIRCULAR ARRANGEMENT; A ROTATABLE LOCKING PIN WHEEL FACING SAID DRIVE WHEEL; A LOCKING PIN MOUNTED FOR AXIAL MOVEMENT IN SAID LOCKING PIN WHEEL TO PROJECT A SUFFICIENT DISTANCE THEREFROM TO ENGAGE ONE OF THE OPENINGS IN SAID DRIVE WHEEL; A STATIONARY LOCKING PIN PLATE HAVING OPENINGS THEREIN WHICH ARE DISPOSED IN ALIGNMENT WITH THE PATH OF MOVEMENT OF SAID LOCKING PIN; SPRING MEANS FOR BIASSING SAID LOCKING PIN TOWARD SAID LOCKING PIN PLATE SO THAT THE LOCKING PIN IS NORMALLY ENGAGED IN ONE OF THE OPENINGS IN SAID LOCKING PIN PLATE; MEANS FOR MOVING SAID LOCKING PIN OUT OF ENGAGEMENT WITH SAID PLATE AND INTO ENGAGEMENT WITH SAID DRIVE WHEEL; AND MEANS FOR ACTUATING SAID RELEASING MEANS TO MOVE THE LOCKING PIN OUT OF THE PARTICULAR OPENING IN WHICH IT IS ENGAGED AND INTO ENGAGEMENT WITH ONE OF THE OPENINGS IN SAID DRIVE WHEEL SO THAT THE LOCKING PIN WHEEL IS ROTATED WITH SAID DRIVE WHEEL UNTIL THE LOCKING PIN COMES INTO ALIGNMENT WITH THE OTHER OPENING IN THE LOCKING PIN PLATE INTO WHICH IT IS BIASSED BY THE SPRING MEANS THUS DISENGAGING IT FROM THE DRIVE WHEEL.
Claim 2
Dependent Claim
220 words
A CLUTCH FOR DRIVING A SHAFT A PREDETERMINED PORTION OF A REVOLUTION, COMPRISING, IN COMBINATION: A ROTATABLE DRIVE WHEEL HAVING A PLURALITY OF OPENINGS FORMED IN ONE SIDE SURFACE THEREOF IN A CIRCULAR ARRANGEMENT; A ROTATABLE LOCKING PIN WHEEL FACING SAID DRIVE WHEEL; A LOCKING PIN MOUNTED FOR AXIAL MOVEMENT IN SAID LOCKING PIN WHEEL TO PROJECT A SUFFICIENT DISTANCE THEREFROM TO ENGAGE ONE OF THE OPENINGS IN SAID DRIVE WHEEL; A STATIONARY LOCKING PIN PLATE HAVING OPENINGS THEREIN WHICH ARE DISPOSED IN ALIGNMENT WITH THE PATH OF MOVEMENT OF SAID LOCKING PIN; SPRING MEANS FOR BIASSING SAID LOCKING PIN TOWARD SAID LOCKING PIN PLATE SO THAT THE LOCKING PIN IS NORMALLY ENGAGED IN ONE OF THE OPENINGS IN SAID LOCKING PIN PLATE; MEANS FOR MOVING SAID LOCKING PIN OUT OF ENGAGEMENT WITH SAID PLATE AND INTO ENGAGEMENT WITH SAID DRIVE WHEEL; AND MEANS FOR ACTUATING SAID RELEASING MEANS TO MOVE THE LOCKING PIN OUT OF THE PARTICULAR OPENING IN WHICH IT IS ENGAGED AND INTO ENGAGEMENT WITH ONE OF THE OPENINGS IN SAID DRIVE WHEEL SO THAT THE LOCKING PIN WHEEL IS ROTATED WITH SAID DRIVE WHEEL UNTIL THE LOCKING PIN COMES INTO ALIGNMENT WITH THE OTHER OPENING IN THE LOCKING PIN PLATE INTO WHICH IT IS BIASSED BY THE SPRING MEANS THUS DISENGAGING IT FROM THE DRIVE WHEEL.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |