US3071190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wellhead attachment for use with wire line tools
Assignee: Camco Inc
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Filing: 1960-12-08
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Granted: 1963-01-01
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Expires: 1980-12-08
Abstract
No abstract record available.
Inventors
- 👤 Harry C Ehlert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:32
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/068; E21B33/072
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
WELL WORKING EQUIPMENT TO PROJECT UPWARDLY AT THE WELLHEAD, COMPRISING UPPER AND LOWER TUBULAR MEMBERS DETACHABLY COUPLED IN END TO END TANDEM SUCCESSION, WELLHEAD DETACHABLE CONNECTION MEANS ON THE LOWER MEMBER, UPPER AND LOWER TOOLS POSITIONED INITIALLY ONE WITHIN THE UPPER MEMBER AND THE OTHER WITHIN THE LOWER MEMBER AND ADAPTED TO BE LOWERED THROUGH THE TUBULAR MEMBERS, A SUSPENSION CABLE JOINED TO THE LOWER TOOL AND PROJECTED INITIALLY THROUGH THE UPPER END OF THE LOWER TUBULAR MEMBER, A DETACHABLE CONNECTION BETWEEN SAID CABLE AND THE UPPER TOOL, A SUSPENSION CABLE FOR THE UPPER TOOL EXTENDED THROUGH THE UPPER END OF THE UPPER TUBULAR MEMBER, CABLE EMBRACING PACKER ELEMENTS SEALING THE UPPER ENDS OF THE TUBULAR MEMBERS RESPECTIVELY AND ACCOMMODATING RELATIVE CABLE SLIDE TRAVEL THERETHROUGH AND A RELEASABLE CONNECTION JOINING ONE OF THE PACKER ELEMENTS IN THE UPPER END OF THE LOWER TUBULAR MEMBER AND BEING RELEASABLE FOR ACCOMMODATING DISPLACEMENT OF THE LAST MENTIONED PACKER ELEMENT FROM INTERFERENCE TO PASSAGE OF THE UPPER TOOL THROUGH THE LOWER TUBULAR MEMBER.
Claim 2
Dependent Claim
169 words
WELL WORKING EQUIPMENT TO PROJECT UPWARDLY AT THE WELLHEAD, COMPRISING UPPER AND LOWER TUBULAR MEMBERS DETACHABLY COUPLED IN END TO END TANDEM SUCCESSION, WELLHEAD DETACHABLE CONNECTION MEANS ON THE LOWER MEMBER, UPPER AND LOWER TOOLS POSITIONED INITIALLY ONE WITHIN THE UPPER MEMBER AND THE OTHER WITHIN THE LOWER MEMBER AND ADAPTED TO BE LOWERED THROUGH THE TUBULAR MEMBERS, A SUSPENSION CABLE JOINED TO THE LOWER TOOL AND PROJECTED INITIALLY THROUGH THE UPPER END OF THE LOWER TUBULAR MEMBER, A DETACHABLE CONNECTION BETWEEN SAID CABLE AND THE UPPER TOOL, A SUSPENSION CABLE FOR THE UPPER TOOL EXTENDED THROUGH THE UPPER END OF THE UPPER TUBULAR MEMBER, CABLE EMBRACING PACKER ELEMENTS SEALING THE UPPER ENDS OF THE TUBULAR MEMBERS RESPECTIVELY AND ACCOMMODATING RELATIVE CABLE SLIDE TRAVEL THERETHROUGH AND A RELEASABLE CONNECTION JOINING ONE OF THE PACKER ELEMENTS IN THE UPPER END OF THE LOWER TUBULAR MEMBER AND BEING RELEASABLE FOR ACCOMMODATING DISPLACEMENT OF THE LAST MENTIONED PACKER ELEMENT FROM INTERFERENCE TO PASSAGE OF THE UPPER TOOL THROUGH THE LOWER TUBULAR MEMBER.
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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |