US3176645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ship positioning apparatus
Assignee: Shell USA Inc
•
Filing: 1963-04-25
•
Granted: 1965-04-06
•
Expires: 1983-04-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Howard L Shatto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:15
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/02; G05D1/0206; G05D1/0208
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
IN A VESSEL POSITIONING SYSTEM THE COMBINATION COMPRISING: AT LEAST TWO PROPULSION UNITS DISPOSED ON SAID VESSEL, SAID PROPULSION UNITS HAVING MEANS FOR VARYING THE DIRECTION AND MAGNITUDE OF THEIR THRUST, SAID PROPULSION UNITS IN ADDITION BEING MOUNTED ON OPPOSITE SIDES OF THE TURNING CENTER OF SAID VESSEL; A POSITION DETECTING MEANS MOUNTED ON THE VESSEL FOR DETERMINING THE POSITION OF THE VESSEL WITH RESPECT TO THE DESIRED POSITION OF THE VESSEL; A VESSEL CONTROL SYSTEM DISPOSED ON SAID VESSEL, SAID CONTROL SYSTEM BEING COUPLED TO SAID POSITION DETECTING MEANS AND SAID TWO PROPULSION UNITS TO MANEUVER SAID PROPULSION UNITS IN RESPONSE TO SAID POSITION DETECTING MEANS; AT LEAST ONE ADDITIONAL PROPULSION UNIT DISPOSED ON SAID VESSEL, SAID ADDITIONAL PROPULSION UNIT HAVING A MEANS FOR VAARYING THE MAGNITUDE AND DIRECTION OF THRUST; AND MEANS COUPLED TO SAID ADDITIONAL PROPULSION UNIT FOR CONTROLLING SAID ADDITIONAL PROPULSION UNIT TO COUNTERACT THE MAIN FORCE TENDING TO DISPLACE THE VESSEL FROM THE DESIRED POSITION.
Claim 2
Dependent Claim
160 words
IN A VESSEL POSITIONING SYSTEM THE COMBINATION COMPRISING: AT LEAST TWO PROPULSION UNITS DISPOSED ON SAID VESSEL, SAID PROPULSION UNITS HAVING MEANS FOR VARYING THE DIRECTION AND MAGNITUDE OF THEIR THRUST, SAID PROPULSION UNITS IN ADDITION BEING MOUNTED ON OPPOSITE SIDES OF THE TURNING CENTER OF SAID VESSEL; A POSITION DETECTING MEANS MOUNTED ON THE VESSEL FOR DETERMINING THE POSITION OF THE VESSEL WITH RESPECT TO THE DESIRED POSITION OF THE VESSEL; A VESSEL CONTROL SYSTEM DISPOSED ON SAID VESSEL, SAID CONTROL SYSTEM BEING COUPLED TO SAID POSITION DETECTING MEANS AND SAID TWO PROPULSION UNITS TO MANEUVER SAID PROPULSION UNITS IN RESPONSE TO SAID POSITION DETECTING MEANS; AT LEAST ONE ADDITIONAL PROPULSION UNIT DISPOSED ON SAID VESSEL, SAID ADDITIONAL PROPULSION UNIT HAVING A MEANS FOR VAARYING THE MAGNITUDE AND DIRECTION OF THRUST; AND MEANS COUPLED TO SAID ADDITIONAL PROPULSION UNIT FOR CONTROLLING SAID ADDITIONAL PROPULSION UNIT TO COUNTERACT THE MAIN FORCE TENDING TO DISPLACE THE VESSEL FROM THE DESIRED POSITION.
References Cited (Backward Citations)
US2735393A
Cited
US3105453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |