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US3587474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dragline winch for ski tows and the like
Assignee: DR WERNER ROHRS KG
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Filing: 1968-05-23
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Granted: 1971-06-28
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Expires: 1988-05-23
Abstract
Abstract TO COUPLE A TOW BAR OF A SKI TOW TO A MOVING CONVEYOR, THE LATTER IS FASTENED TO A WINCH WITH A CYLINDRICAL HOUSING WHEREIN A SHAFT IS ROTATABLE AGAINST THE RESTORING FORCE OF A SPIRAL SPRING AND CARRIES A REEL AROUND WHICH A CABLE ANCHORED TO THE TOW BAR IS WOUND. TENSION ON THE CABLE ACTIVATES A NORMALLY INOPERATIVE BRAKE WHICH IS EXCLUSIVELY OR MORE HIGHLY EFFECTIVE IN THE UNWINDING DIRECTION AND PROGRESSIVELY IMPEDES ROTATION OF THE REEL AFTER OVERCOMING A COUNTERVAILING BIASING FORCE.
Inventors
- 👤 Franz Fuchs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:22
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/34; B65H75/38; B61; B61B; B61B11/00; B61B11/004; B65H75/44; B65H75/4436; B65H75/4442; B65H75/4447; B65H75/4457; B65H75/4471; Y; Y10; Y10S; Y10S242/00; Y10S242/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |