Patent US3177703A successfully refreshed from Google Patents.
US3177703A
Expired / Lapsed
US
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Method and apparatus for running and testing an assembly for sealing between wellhead conduits
Assignee: Cooper Industries LLC
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Filing: 1963-12-02
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Granted: 1965-04-13
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Expires: 1983-12-02
Abstract
No abstract record available.
Inventors
- 👤 Louis A Waters
- 👤 Paul E Helfer
- 👤 Marvin R Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:42
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B47/00; E21B47/10; E21B47/117
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A TOOL FOR USE OF RUNNING AN ANNULAR SEAL ASSEMBLY INTO THE SPACE BETWEEN INNER AND OUTER CONDUITS WITHIN A WELLHEAD AND THEN TESTING THE SEAL ASSEMBLING FOR LEAKAGE COMPRISING A BODY ADAPTED TO BE SUSPENDED FROM THE LOWER END OF A TUBULAR CONDUCTOR FOR LOWERING THE BODY INTO THE WELLHEAD, SAID BODY HAVING A CHAMBER THEREIN WITH AN OPEN UPPER END FOR CONNECTION WITH THE LOWER OPEN END OF THE TUBULAR CONDUCTOR WHEN SUSPENDED THEREFROM AND A PORT CONNECTING THE CHAMBER WITH THE EXTERIOR OF THE BODY, MEANS ON THE BODY FOR ATTACHING THE SEAL ASSEMBLY THEREABOUTS SO THAT SAID ASSEMBLY MAY BE LOWERED WITH THE BODY INTO THE SPACE BETWEEN THE CONDUITS FOR SEALING THEREACROSS, AND MEANS ABOUT THE BODY BELOW THE ATTACHING MEANS THEREON FOR SEALING BETWEEN THE BODY AND THE INNER CONDUIT WHEN THE SEAL ASSEMBLY HAS BEEN SO LOWERED INTO SAID SPACE, WHEREBY A SEAL MAY BE
Claim 2
Dependent Claim
152 words
A TOOL FOR USE OF RUNNING AN ANNULAR SEAL ASSEMBLY INTO THE SPACE BETWEEN INNER AND OUTER CONDUITS WITHIN A WELLHEAD AND THEN TESTING THE SEAL ASSEMBLING FOR LEAKAGE COMPRISING A BODY ADAPTED TO BE SUSPENDED FROM THE LOWER END OF A TUBULAR CONDUCTOR FOR LOWERING THE BODY INTO THE WELLHEAD, SAID BODY HAVING A CHAMBER THEREIN WITH AN OPEN UPPER END FOR CONNECTION WITH THE LOWER OPEN END OF THE TUBULAR CONDUCTOR WHEN SUSPENDED THEREFROM AND A PORT CONNECTING THE CHAMBER WITH THE EXTERIOR OF THE BODY, MEANS ON THE BODY FOR ATTACHING THE SEAL ASSEMBLY THEREABOUTS SO THAT SAID ASSEMBLY MAY BE LOWERED WITH THE BODY INTO THE SPACE BETWEEN THE CONDUITS FOR SEALING THEREACROSS, AND MEANS ABOUT THE BODY BELOW THE ATTACHING MEANS THEREON FOR SEALING BETWEEN THE BODY AND THE INNER CONDUIT WHEN THE SEAL ASSEMBLY HAS BEEN SO LOWERED INTO SAID SPACE, WHEREBY A SEAL MAY BE
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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |