Patent US3150628A successfully refreshed from Google Patents.
US3150628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizer for floating offshore drilling rigs
Assignee: ZAPATA OFFSHORE DRILLING CO
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Filing: 1962-08-02
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Granted: 1964-09-29
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Expires: 1982-08-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Emile J Brinkmann
- 👤 Henry W Blakely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:29
CPC Classifications
B; B63; B63B; B63B43/00; B63B43/02; B63B43/10; B63B43/14; B63B1/00; B63B1/02; B63B1/10; B63B1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
AN OFFSHORE DRILLING BARGE COMPRISING A VESSEL HULL HAVING A BEAM WHICH IS INSUFFICIENT IN SEAS HAVING A WAVE CREST HEIGHT LYING WITHIN A PREDETERMINED RANGE TO AFFORD THE REQUISITE STABILITY OF A DRILLING PLATFORM, A WELL DRILLING RIG MOUNTED UPON SAID HULL, A ROLL RESISTANT STABILIZER ASSEMBLY SECURED TO SAID HULL AND COMPRISING A PAIR OF BUOYANT BODIES DISPOSED IN THE WATER ON OPPOSITE SIDES OF SAID HULL TOGETHER WITH AN OUTRIGGER CONSTRUCTION ATTACHED TO SAID HULL AND TO SAID BUOYANT BODIES AND MAINTAINING THE LATTER IN FIXED SPACED RELATION TO SAID HULL AND AT A DISTANCE FROM EACH OTHER WHICH IS APPROXIMATELY TWENTY TIMES SAID PREDETERMINED WAVE CREST HEIGHT AND THEREBY CAUSE SAID STABILIZER ASSEMBLY TO EXERT A FORCE ON SAID HULL FROM THE WAVE ACTION UPON SAID BODIES WHICH WILL OPPOSE AND SUBSTANTIALLY BALANCE THE FORCE SIMULTANEOUSLY EXERTED BY SAID WAVE ACTION ON SAID HULL AND THEREBY AFFORD THE REQUISITE HULL STABILITY FOR DRILLING.
Claim 2
Dependent Claim
157 words
AN OFFSHORE DRILLING BARGE COMPRISING A VESSEL HULL HAVING A BEAM WHICH IS INSUFFICIENT IN SEAS HAVING A WAVE CREST HEIGHT LYING WITHIN A PREDETERMINED RANGE TO AFFORD THE REQUISITE STABILITY OF A DRILLING PLATFORM, A WELL DRILLING RIG MOUNTED UPON SAID HULL, A ROLL RESISTANT STABILIZER ASSEMBLY SECURED TO SAID HULL AND COMPRISING A PAIR OF BUOYANT BODIES DISPOSED IN THE WATER ON OPPOSITE SIDES OF SAID HULL TOGETHER WITH AN OUTRIGGER CONSTRUCTION ATTACHED TO SAID HULL AND TO SAID BUOYANT BODIES AND MAINTAINING THE LATTER IN FIXED SPACED RELATION TO SAID HULL AND AT A DISTANCE FROM EACH OTHER WHICH IS APPROXIMATELY TWENTY TIMES SAID PREDETERMINED WAVE CREST HEIGHT AND THEREBY CAUSE SAID STABILIZER ASSEMBLY TO EXERT A FORCE ON SAID HULL FROM THE WAVE ACTION UPON SAID BODIES WHICH WILL OPPOSE AND SUBSTANTIALLY BALANCE THE FORCE SIMULTANEOUSLY EXERTED BY SAID WAVE ACTION ON SAID HULL AND THEREBY AFFORD THE REQUISITE HULL STABILITY FOR DRILLING.
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) | 1967-09-29 | 1968-03-30 | 1968-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-29 | 1972-03-30 | 1972-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-29 | 1976-03-30 | 1976-09-29 | $7700.00 | Window Closed / Lapsed |