US3200407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed synchronization mechanism for sound motion picture projector
Assignee: Bell and Howell Co
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Filing: 1961-03-20
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Granted: 1965-08-10
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Expires: 1981-03-20
Abstract
No abstract record available.
Inventors
- 👤 Robert W Nordin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:35
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/321
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A SOUND MOTION PICTURE PROJECTOR, AN APERTURE PLATE, SHUTTLE MEANS FOR INTERMITTENTLY ADVANCING A FILM ALONG THE APERTURE PLATE, A SOUND HEAD, CONTINUOUS ADVANCING MEANS FOR ADVANCING THE FILM CONTINUOUSLY PAST THE SOUND HEAD, THE PORTION OF FILM POSITIONED BETWEEN SAID APERTURE PLATE AND CONTINUOUS ADVANCING MEANS BEING FORMED INTO A FREE LOOP, FEELER MEANS BIASED AGAINST AN EXTERIOR SIDE OF THE LOOP, DRIVE MEANS ADJUSTABLE BY THE FEELER MEANS TO DRIVE THE SHUTTLE MEANS AND THE CONTINUOUS ADVANCING MEANS IN SYNCHRONISM, CAPSTAN MEANS FOR FEEDING FILM INTO A SECOND FREE LOOP TO THE APERTURE PLATE, SECOND FEELER MEANS BIASED AGAINST AN EXTERIOR SIDE OF THE SECOND FREE LOOP, AND DRIVE MEANS ADJUSTABLE BY THE SECOND FEELER MEANS TO DRIVE THE CAPSTAN MEANS IN SYNCHRONISM WITH THE SHUTTLE MEANS.
Claim 2
Dependent Claim
130 words
IN A SOUND MOTION PICTURE PROJECTOR, AN APERTURE PLATE, SHUTTLE MEANS FOR INTERMITTENTLY ADVANCING A FILM ALONG THE APERTURE PLATE, A SOUND HEAD, CONTINUOUS ADVANCING MEANS FOR ADVANCING THE FILM CONTINUOUSLY PAST THE SOUND HEAD, THE PORTION OF FILM POSITIONED BETWEEN SAID APERTURE PLATE AND CONTINUOUS ADVANCING MEANS BEING FORMED INTO A FREE LOOP, FEELER MEANS BIASED AGAINST AN EXTERIOR SIDE OF THE LOOP, DRIVE MEANS ADJUSTABLE BY THE FEELER MEANS TO DRIVE THE SHUTTLE MEANS AND THE CONTINUOUS ADVANCING MEANS IN SYNCHRONISM, CAPSTAN MEANS FOR FEEDING FILM INTO A SECOND FREE LOOP TO THE APERTURE PLATE, SECOND FEELER MEANS BIASED AGAINST AN EXTERIOR SIDE OF THE SECOND FREE LOOP, AND DRIVE MEANS ADJUSTABLE BY THE SECOND FEELER MEANS TO DRIVE THE CAPSTAN MEANS IN SYNCHRONISM WITH THE SHUTTLE MEANS.
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |