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US3072420A
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Tubing hanger assembly
Assignee: FMC Corp
•
Filing: 1958-12-08
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Granted: 1963-01-08
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Expires: 1978-12-08
Abstract
No abstract record available.
Inventors
- 👤 Jacob M Lebeaux
- 👤 Carlos E Ballard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:56
CPC Classifications
F; F16; F16L; F16L39/00; E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/047; F16L7/00; F16L7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
APPARATUS FOR SUSPENDING TWO STRINGS OF TUBING WITHIN A WELL, COMPRISING A TUBING HEAD HAVING A BORE THERETHROUGH, TWO TUBING HANGER COUPLINGS RECEIVABLE SIDE-BY-SIDE WITHIN THE BORE OF SAID TUBING HEAD, EACH OF SAID COUPLINGS INCLUDING A SEMI-CYLINDRICAL FLANGE AND TUBULAR PORTION PROJECTING THEREFROM AND ROTATABLY CONNECTED THERETO, EACH OF SAID TUBING STRINGS BEING CONNECTED TO THE TUBULAR PORTION OF ONE OF SAID COUPLINGS, THE FLANGES OF SAID TWO HANGER COUPLINGS BEING ARRANGED WITH THEIR FLAT SURFACES IN FACE-TO-FACE RELATION, AND INDEPENDENT SUPPORTING MEANS FOR EACH OF SAID HANGER COUPLINGS MOUNTED ON SAID TUBING HEAD, EACH OF SAID SUPPORTING MEANS BEING MOVABLE BETWEEN AN OPERATIVE POSITION PROJECTING INTO THE TUBING HEAD BORE UNDER THE FLANGE OF THE ASSOCIATED COUPLING TO SUPPORT THE COUPLING AND AN INOPERATIVE POSITION REMOVED FROM THE TUBING HEAD BORE TO ALLOW PASSAGE OF THE ASSOCIATED COUPLING THROUGH THE TUBING HEAD BORE.
Claim 2
Dependent Claim
145 words
APPARATUS FOR SUSPENDING TWO STRINGS OF TUBING WITHIN A WELL, COMPRISING A TUBING HEAD HAVING A BORE THERETHROUGH, TWO TUBING HANGER COUPLINGS RECEIVABLE SIDE-BY-SIDE WITHIN THE BORE OF SAID TUBING HEAD, EACH OF SAID COUPLINGS INCLUDING A SEMI-CYLINDRICAL FLANGE AND TUBULAR PORTION PROJECTING THEREFROM AND ROTATABLY CONNECTED THERETO, EACH OF SAID TUBING STRINGS BEING CONNECTED TO THE TUBULAR PORTION OF ONE OF SAID COUPLINGS, THE FLANGES OF SAID TWO HANGER COUPLINGS BEING ARRANGED WITH THEIR FLAT SURFACES IN FACE-TO-FACE RELATION, AND INDEPENDENT SUPPORTING MEANS FOR EACH OF SAID HANGER COUPLINGS MOUNTED ON SAID TUBING HEAD, EACH OF SAID SUPPORTING MEANS BEING MOVABLE BETWEEN AN OPERATIVE POSITION PROJECTING INTO THE TUBING HEAD BORE UNDER THE FLANGE OF THE ASSOCIATED COUPLING TO SUPPORT THE COUPLING AND AN INOPERATIVE POSITION REMOVED FROM THE TUBING HEAD BORE TO ALLOW PASSAGE OF THE ASSOCIATED COUPLING THROUGH THE TUBING HEAD BORE.
References Cited (Backward Citations)
US1595310A
Cited
US1529605A
Cited
US1938062A
Cited
GB456875A
Cited
US2159401A
Cited
US2254752A
Cited
US2237683A
Cited
US2507246A
Cited
US2599039A
Cited
US2768841A
Cited
US2754134A
Cited
US2794505A
Cited
US2830665A
Cited
US2927804A
Cited
US2930633A
Cited
US2934148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |