US3093996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drilling pressure control assembly tester
Assignee: Cooper Industries LLC
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Filing: 1960-03-22
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Granted: 1963-06-18
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Expires: 1980-03-22
Abstract
No abstract record available.
Inventors
- 👤 Marvin R Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:19
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/06; E21B33/061; E21B33/062; E21B33/04; E21B47/00; E21B47/10; E21B47/117
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
218 words
A DEVICE FOR TESTING A DRILLING PRESSURE CONTROL ASSEMBLY INCLUDING A BLOWOUT PREVENTER CONNECTED TO A SURFACE CASING THROUGH A CASING HEAD OR THE LIKE, THE CONTROL ASSEMBLY HAVING MEANS FOR CHARGING TEST GAS UNDER PRESSURE INTO THE BORE THEREOF AND SEALING MEANS CARRIED BY THE BLOWOUT PREVENTER OPERABLE TO SEAL ABOUT AN OBJECT IN THE BORE, SAID TESTING DEVICE COMPRISING A BODY SIZED FOR A LOOSE FIT IN THE BORE OF THE DRILLING PRESSURE CONTROL ASSEMBLY; SEALING MEANS CARRIED BY THE BODY FOR SEALING OFF THE BORE THROUGH THE CONTROL ASSEMBLY AND PROVIDING A TEST SPACE THEREIN EXTERIORLY OF THE BODY; A BORE IN SAID BODY, ONE END OF THE BODY BORE BEING CLOSED AND THE OTHER END BEING CONNECTED WITH SAID TEST SPACE AND OPEN TO PASSAGE OF FLUID THEREBETWEEN WHEN THE TESTER IS IN OPERABLE POSITION IN THE BORE OF THE CONTROL ASSEMBLY; A PRESSURE RESPONSIVE MEMBER EXTENDING ACROSS THE BORE OF THE BODY AND MOVABLE THEREIN BETWEEN A FIRST POSITION NEAR THE CLOSED END OF THE BODY BORE AND A SECOND POSITION FURTHER REMOVED THEREFROM AND NEAR THE OPEN END THEREOF, AND MEANS FOR SUPPLYING OPERATING FLUID UNDER PRESSURE TO SAID MEMBER FOR MOVING IT FROM SAID FIRST TO SAID SECOND POSITION AND INCREASING THE PRESSURE OF THE GAS CONFINED IN SAID TEST SPACE.
Claim 2
Independent Claim
218 words
A DEVICE FOR TESTING A DRILLING PRESSURE CONTROL ASSEMBLY INCLUDING A BLOWOUT PREVENTER CONNECTED TO A SURFACE CASING THROUGH A CASING HEAD OR THE LIKE, THE CONTROL ASSEMBLY HAVING MEANS FOR CHARGING TEST GAS UNDER PRESSURE INTO THE BORE THEREOF AND SEALING MEANS CARRIED BY THE BLOWOUT PREVENTER OPERABLE TO SEAL ABOUT AN OBJECT IN THE BORE, SAID TESTING DEVICE COMPRISING A BODY SIZED FOR A LOOSE FIT IN THE BORE OF THE DRILLING PRESSURE CONTROL ASSEMBLY; SEALING MEANS CARRIED BY THE BODY FOR SEALING OFF THE BORE THROUGH THE CONTROL ASSEMBLY AND PROVIDING A TEST SPACE THEREIN EXTERIORLY OF THE BODY; A BORE IN SAID BODY, ONE END OF THE BODY BORE BEING CLOSED AND THE OTHER END BEING CONNECTED WITH SAID TEST SPACE AND OPEN TO PASSAGE OF FLUID THEREBETWEEN WHEN THE TESTER IS IN OPERABLE POSITION IN THE BORE OF THE CONTROL ASSEMBLY; A PRESSURE RESPONSIVE MEMBER EXTENDING ACROSS THE BORE OF THE BODY AND MOVABLE THEREIN BETWEEN A FIRST POSITION NEAR THE CLOSED END OF THE BODY BORE AND A SECOND POSITION FURTHER REMOVED THEREFROM AND NEAR THE OPEN END THEREOF, AND MEANS FOR SUPPLYING OPERATING FLUID UNDER PRESSURE TO SAID MEMBER FOR MOVING IT FROM SAID FIRST TO SAID SECOND POSITION AND INCREASING THE PRESSURE OF THE GAS CONFINED IN SAID TEST SPACE.
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) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |