Patent US3338490A successfully refreshed from Google Patents.
US3338490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film driving means for a cine-projector
Assignee: Individual
•
Filing: 1965-06-18
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Granted: 1967-08-29
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Expires: 1985-06-18
Abstract
No abstract record available.
Inventors
- 👤 Hara Teruei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:22
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/42; G03B1/48; G03B1/50; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/206
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A FILM DRIVING MEANS FOR A CINE-PROJECTOR COMPRISING A SPROCKET MEANS AND AN INTERMITTENT FILM DRIVING MEANS, SAID DRIVING MEANS INCLUDING A PIVOTALLY MOUNTED CLAW ARM HAVING A CLAW FOR ENGAGEMENT WITH PERFORATIONS OF SAID FILM AND A CAM OPERATIVELY CONNECTED TO DRIVE SAID CLAW ARM, SAID SPROCKET MEANS BEING ADJUSTABLE IN TEETH PITCH IN RESPONSE TO ACTUATION OF AN OPERATING LEVER, THE PIVOT POINT OF SAID CLAW ARM BEING MOVABLE RELATIVE TO SAID CAM IN RESPONSE TO ACTUATION OF SAID OPERATING LEVER SO AS TO CHANGE THE POSITION AND THE SWING AMPLITUDE OF SAID ARM, WHEREBY SAID FILM DRIVING MEANS CAN BE USED WITH DIFFERENT TYPES OF FILMS HAVING DIFFERENT PERFORATIONS THROUGH SIMPLE ADJUSTMENT.
Claim 2
Dependent Claim
115 words
A FILM DRIVING MEANS FOR A CINE-PROJECTOR COMPRISING A SPROCKET MEANS AND AN INTERMITTENT FILM DRIVING MEANS, SAID DRIVING MEANS INCLUDING A PIVOTALLY MOUNTED CLAW ARM HAVING A CLAW FOR ENGAGEMENT WITH PERFORATIONS OF SAID FILM AND A CAM OPERATIVELY CONNECTED TO DRIVE SAID CLAW ARM, SAID SPROCKET MEANS BEING ADJUSTABLE IN TEETH PITCH IN RESPONSE TO ACTUATION OF AN OPERATING LEVER, THE PIVOT POINT OF SAID CLAW ARM BEING MOVABLE RELATIVE TO SAID CAM IN RESPONSE TO ACTUATION OF SAID OPERATING LEVER SO AS TO CHANGE THE POSITION AND THE SWING AMPLITUDE OF SAID ARM, WHEREBY SAID FILM DRIVING MEANS CAN BE USED WITH DIFFERENT TYPES OF FILMS HAVING DIFFERENT PERFORATIONS THROUGH SIMPLE ADJUSTMENT.
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) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |