US3137427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake mechanism for recording apparatus
Assignee: Eastman Kodak Co
•
Filing: 1962-04-30
•
Granted: 1964-06-16
•
Expires: 1982-04-30
Abstract
No abstract record available.
Inventors
- 👤 William A Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:18
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
IN A SYSTEM FOR RECORDING AND REPRODUCING SOUND ON AND FROM A WEB AND INCLUDING A WEB DRIVE FOR MOVING SAID WEB ALONG A PREDETERMINED PATH AND A SOUND DRUM OVER WHICH SAID WEB IS DRIVEN, SAID SOUND DRUM BEING STABILIZED BY A FLYWHEEL, THE IMPROVEMENT COMPRISING: A FRICTION COUPLING BETWEEN SAID DRUM AND SAID FLYWHEEL; A BRAKE DISPOSED IN DIRECT COOPERATIVE RELATION TO SAID SOUND DRUM AND ADAPTED, WHEN ACTUATED, TO APPLY A BRAKING FORCE TO THE SAID SOUND DRUM SUFFICIENT TO PREVENT ROTATION THEREOF BY FORCE TRANSMITTED THROUGH SAID
Claim 2
Dependent Claim
91 words
IN A SYSTEM FOR RECORDING AND REPRODUCING SOUND ON AND FROM A WEB AND INCLUDING A WEB DRIVE FOR MOVING SAID WEB ALONG A PREDETERMINED PATH AND A SOUND DRUM OVER WHICH SAID WEB IS DRIVEN, SAID SOUND DRUM BEING STABILIZED BY A FLYWHEEL, THE IMPROVEMENT COMPRISING: A FRICTION COUPLING BETWEEN SAID DRUM AND SAID FLYWHEEL; A BRAKE DISPOSED IN DIRECT COOPERATIVE RELATION TO SAID SOUND DRUM AND ADAPTED, WHEN ACTUATED, TO APPLY A BRAKING FORCE TO THE SAID SOUND DRUM SUFFICIENT TO PREVENT ROTATION THEREOF BY FORCE TRANSMITTED THROUGH SAID
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |