US3718262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two cable tension-controlled carriage
Assignee: United States Department of Agriculture
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Filing: 1971-02-24
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Granted: 1973-02-27
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Expires: 1991-02-24
Abstract
Abstract A CARRIAGE FOR MOVING CABLE TRAVERSING HOIST APPLICATION WITH COMPLETE OPERATION AND CONTROL DERIVED FROM THE TENSION AND MOVEMENT OF THE TWO RUNNING CABLES WITHOUT ADDITIONAL CONTROL LINES OR INTERNAL POWER SOURCES. A TENSION-CONTROLLED CLAMP IS ENGAGED TO HOLD THE CARRIAGE IN POSITION ON THE CABLE FROM WHICH IT IS SUSPENDED. WITH THE CARRIAGE SUPPORTED COMPLETELY BY THE SUSPENSION CABLE, ONE RUNNING CABLE IS FREED FOR USE AS A HOIST. A DEVICE IN THE CARRIAGE PULLS A PORTION OF THIS CABLE THROUGH THE CARRIAGE, LOWERING IT TO ALLOW ATTACHMENT OR REMOVAL OF THE LOAD.
Inventors
- 👤 H Lysons
- 👤 C Mann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:49
CPC Classifications
B; B66; B66C; B66C21/00; B66C2700/00; B66C2700/01; B66C2700/011
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) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |