US3252718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hanger bushing
Assignee: FMC Corp
•
Filing: 1963-02-05
•
Granted: 1966-05-24
•
Expires: 1983-02-05
Abstract
No abstract record available.
Inventors
- 👤 John R Yancey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:10
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A MULTIPLE BUSHING FOR HANGING A PLURALITY OF FLUID CONDUCTING MEMBERS IN A HEAD OF A WELL APPARATUS COMPRISING A BODY ADAPTED TO BE SUPPORTED IN SAID HEAD AND HAVING A PLURALITY OF OUTER BORES EXTENDING LONGITUDINALLY THERETHROUGH, EACH OF SAID OUTER BORES BEING CIRCUMSCRIBED BY A WALL, SLEEVES INDIVIDUALLY SLIDABLY FITTED IN SAID OUTER BORES, EACH SLEEVE HAVING AN AXIAL INNER BORE AND A PLURALITY OF WINDOWS EXTENDING RADIALLY THERETHROUGH, AND LUGS SLIDABLY FITTED IN SAID WINDOWS FOR MOVEMENT BETWEEN LOCKING POSITIONS PROJECTING INTO THEIR RESPECTIVE INNER BORES AND RETRACTED POSITIONS DISPLACED RADIALLY OUTWARD FROM THEIR RESPECTIVE LOCKING POSITIONS, SAID LUGS BEING SO CONSTRUCTED AND ARRANGED AS TO ENGAGE AND SUPPORT A MEMBER DISPOSED IN EACH OF SAID INNER BORES WHEN IN SAID LOCKING POSITIONS, THE INTERNAL WALL OF EACH OF
Claim 2
Dependent Claim
132 words
A MULTIPLE BUSHING FOR HANGING A PLURALITY OF FLUID CONDUCTING MEMBERS IN A HEAD OF A WELL APPARATUS COMPRISING A BODY ADAPTED TO BE SUPPORTED IN SAID HEAD AND HAVING A PLURALITY OF OUTER BORES EXTENDING LONGITUDINALLY THERETHROUGH, EACH OF SAID OUTER BORES BEING CIRCUMSCRIBED BY A WALL, SLEEVES INDIVIDUALLY SLIDABLY FITTED IN SAID OUTER BORES, EACH SLEEVE HAVING AN AXIAL INNER BORE AND A PLURALITY OF WINDOWS EXTENDING RADIALLY THERETHROUGH, AND LUGS SLIDABLY FITTED IN SAID WINDOWS FOR MOVEMENT BETWEEN LOCKING POSITIONS PROJECTING INTO THEIR RESPECTIVE INNER BORES AND RETRACTED POSITIONS DISPLACED RADIALLY OUTWARD FROM THEIR RESPECTIVE LOCKING POSITIONS, SAID LUGS BEING SO CONSTRUCTED AND ARRANGED AS TO ENGAGE AND SUPPORT A MEMBER DISPOSED IN EACH OF SAID INNER BORES WHEN IN SAID LOCKING POSITIONS, THE INTERNAL WALL OF EACH OF
References Cited (Backward Citations)
US1031637A
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US1712029A
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US2010284A
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US2182797A
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US2962096A
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US3032359A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |