Patent US3276748A successfully refreshed from Google Patents.
US3276748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Towing winch control
Assignee: ConocoPhillips Co
•
Filing: 1964-10-12
•
Granted: 1966-10-04
•
Expires: 1984-10-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Archer M Nickerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:21
CPC Classifications
B; B63; B63B; B63B21/00; B63B21/56; B63B21/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A CONTROL MEANS FOR A WINCH HAVING A CABLE WOUND THEREABOUT AND A LENGTH OF CABLE EXTENDING THEREFROM AND ATTACHED TO A SUBMERSIBLE BARGE, COMPRISING FIRST MEANS TO DEVELOP A FIRST OUTPUT RESPONSIVE TO THE DEPTH OF SAID BARGE DEVIATING FROM A NORM, A SERVOMOTOR OPERABLE IN RESPONSE TO SAID FIRST OUTPUT, A DIFFERENTIAL CONTROL DRIVEN BY SAID SERVOMOTOR, DRIVE MEANS OF SAID DIFFERENTIAL ROTATING SAID WINCH AN AMOUNT IN PROPORTION TO SAID FIRST OUTPUT, FEEDBACK MEANS DEVELOPING A FEEDBACK OUTPUT OPPOSITE TO SAID FIRST OUTPUT, SECOND MEANS TRANSMITTING SAID FEEDBACK SIGNAL TO SAID DIFFERENTIAL CAUSING WINCH ROTATION TO STOP WHEN SAID FEEDBACK SIGNAL EQUALS SAID FIRST OUTPUT.
Claim 2
Dependent Claim
108 words
A CONTROL MEANS FOR A WINCH HAVING A CABLE WOUND THEREABOUT AND A LENGTH OF CABLE EXTENDING THEREFROM AND ATTACHED TO A SUBMERSIBLE BARGE, COMPRISING FIRST MEANS TO DEVELOP A FIRST OUTPUT RESPONSIVE TO THE DEPTH OF SAID BARGE DEVIATING FROM A NORM, A SERVOMOTOR OPERABLE IN RESPONSE TO SAID FIRST OUTPUT, A DIFFERENTIAL CONTROL DRIVEN BY SAID SERVOMOTOR, DRIVE MEANS OF SAID DIFFERENTIAL ROTATING SAID WINCH AN AMOUNT IN PROPORTION TO SAID FIRST OUTPUT, FEEDBACK MEANS DEVELOPING A FEEDBACK OUTPUT OPPOSITE TO SAID FIRST OUTPUT, SECOND MEANS TRANSMITTING SAID FEEDBACK SIGNAL TO SAID DIFFERENTIAL CAUSING WINCH ROTATION TO STOP WHEN SAID FEEDBACK SIGNAL EQUALS SAID FIRST OUTPUT.
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |