US3287035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe hanger
Assignee: FMC Corp
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Filing: 1965-11-01
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Granted: 1966-11-22
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Expires: 1985-11-01
Abstract
No abstract record available.
Inventors
- 👤 John A Greenwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:35
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/0422
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
IN A PIPE HANGER FOR USE IN SUPPORTING A PIPE IN A HEAD MEMBER, A JUNK RING HAVING AN UPPER SURFACE RADIALLY EXTENDED WITH RESPECT TO THE RING''S AXIS AND A LOWER SURFACE ADAPTED TO SUPPORT THE HANGER IN THE HEAD MEMBER, AN ANNULAR SEAL OF RESILIENTLY DEFORMABLE MATERIAL SIZED TO SUBSTANTIALLY FILL THE SPACE BETWEEN THE PIPE AND THE HEAD MEMBER AND HAVING AN UPPER AND A LOWER SURFACE OF SUBSTANTIAL AREA, SAID SEAL''S LOWER SURFACE SUPPORTED ON THE UPPER SURFACE OF SAID JUNK RING, SAID SEAL HAVING AN INNER ANNULAR WALL, A PLURALITY OF RIGID PIPE GRIPPING MEMBERS, EACH MEMBER OF SUBSTANTIAL ARCUATE EXTENT AND HAVING ONE SURFACE SUPPORTED BY AND SLIDABLY ENGAGING SAID UPPER SURFACE OF SAID RING AND A SECOND SURFACE UPSTANDING IN CONTACTING RELATION TO SAID INNER WALL, A SLIP BOWL SUPPORTED BY SAID SEAL''S UPPER SURFACE AND HAVING A DOWNWARDLY AND INWARDLY SLOPING INNER SURFACE, AND A PLURALITY OF SLIPS SLIDABLY ENGAGING SAID INNER SURFACE OF SAID SLIP BOWL.
Claim 2
Dependent Claim
165 words
IN A PIPE HANGER FOR USE IN SUPPORTING A PIPE IN A HEAD MEMBER, A JUNK RING HAVING AN UPPER SURFACE RADIALLY EXTENDED WITH RESPECT TO THE RING''S AXIS AND A LOWER SURFACE ADAPTED TO SUPPORT THE HANGER IN THE HEAD MEMBER, AN ANNULAR SEAL OF RESILIENTLY DEFORMABLE MATERIAL SIZED TO SUBSTANTIALLY FILL THE SPACE BETWEEN THE PIPE AND THE HEAD MEMBER AND HAVING AN UPPER AND A LOWER SURFACE OF SUBSTANTIAL AREA, SAID SEAL''S LOWER SURFACE SUPPORTED ON THE UPPER SURFACE OF SAID JUNK RING, SAID SEAL HAVING AN INNER ANNULAR WALL, A PLURALITY OF RIGID PIPE GRIPPING MEMBERS, EACH MEMBER OF SUBSTANTIAL ARCUATE EXTENT AND HAVING ONE SURFACE SUPPORTED BY AND SLIDABLY ENGAGING SAID UPPER SURFACE OF SAID RING AND A SECOND SURFACE UPSTANDING IN CONTACTING RELATION TO SAID INNER WALL, A SLIP BOWL SUPPORTED BY SAID SEAL''S UPPER SURFACE AND HAVING A DOWNWARDLY AND INWARDLY SLOPING INNER SURFACE, AND A PLURALITY OF SLIPS SLIDABLY ENGAGING SAID INNER SURFACE OF SAID SLIP BOWL.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |