US3294302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motion picture apparatus
Assignee: RCA Corp
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Filing: 1965-11-26
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Granted: 1966-12-27
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Expires: 1985-11-26
Abstract
No abstract record available.
Inventors
- 👤 Bjorn F Floden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:42
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/18; G03B31/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A MECHANICAL FILTER FOR PROVIDING SUBSTANTIALLY UNIFORM MOTION OF A FILM WHICH IS TO BE DRIVEN AT APPROXIMATELY CONSTANT SPEED ALONG A PATH, SAID FILTER COMPRISING, IN COMBINTAION, (A) A POST, (B) A BODY OF RESILIENT MATERIAL HAVING HYSTERESIS CHARACTERISTICS DISPOSED AROUND SAID POST, AND (C) MEANS DISPOSED ALONG SAID PATH FOR ENGAGEMENT WITH SAID FILM AND COUPLED TO SAID BODY FOR STRETCHING SAID BODY AND SLIDING SAID BODY OVER SAID POST SO AS TO ABSORB THE ENERGY OF NON-UNIFORM MOTION OF THE FILM, THEREBY TO OPPOSITE DEVIATIONS IN THE MOTION OF SAID FILM FROM UNIFORM MOTION.
Claim 2
Dependent Claim
97 words
A MECHANICAL FILTER FOR PROVIDING SUBSTANTIALLY UNIFORM MOTION OF A FILM WHICH IS TO BE DRIVEN AT APPROXIMATELY CONSTANT SPEED ALONG A PATH, SAID FILTER COMPRISING, IN COMBINTAION, (A) A POST, (B) A BODY OF RESILIENT MATERIAL HAVING HYSTERESIS CHARACTERISTICS DISPOSED AROUND SAID POST, AND (C) MEANS DISPOSED ALONG SAID PATH FOR ENGAGEMENT WITH SAID FILM AND COUPLED TO SAID BODY FOR STRETCHING SAID BODY AND SLIDING SAID BODY OVER SAID POST SO AS TO ABSORB THE ENERGY OF NON-UNIFORM MOTION OF THE FILM, THEREBY TO OPPOSITE DEVIATIONS IN THE MOTION OF SAID FILM FROM UNIFORM MOTION.
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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |