US3606256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winch control systems
Assignee: Individual
•
Filing: 1968-06-21
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Granted: 1971-09-20
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Expires: 1988-06-21
Abstract
Abstract IN A CABLE CONVEYOR SYSTEM FOR TRANSFER OF CARGO BETWEEN MOVING OBJECTS SUCH AS TWO SHIPS WHERE A LOOP OF WIRE IS SLUNG OVER A PULLEY ON ONE SHIP AND THE TWO ENDS OF SAID WIRE ARE SLUNG OVER INDENPENDENT PULLEYS ON THE OTHER SHIP, WHERE THE TWO WIRE ENDS ARE INDEPENDENTLY OPERATED BY TWO HYDRAULIC WINCHES HAVING A COMBINED WINCH CONTROL SYSTEM WHEREBY ONE WINCH IS USED AS A TENSIONING WINCH AND THE OTHER IS USED AS A SPEED AND DIRECTION CONTROL WINCH, AND INCORPORATING FEEDBACK SYSTEMS WHEREBY THE ACCELERATION, SPEED, DECELERATION AND STOP POSITION OF SAID CONTAINER CAN BE PREDETERMINED RELATIVE TO ONE SHIP OR THE OTHER IRRESPECTIVE OF THE ROLLING OF SAID TWO SHIPS.
Inventors
- 👤 Karsten Alfred Overetveit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:22
CPC Classifications
B; B63; B63B; B63B27/00; B63B27/18
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |