US3341212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packing
Assignee: FMC Corp
•
Filing: 1964-06-18
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Granted: 1967-09-12
•
Expires: 1984-06-18
Abstract
No abstract record available.
Inventors
- 👤 Gus M Bagnard
- 👤 Kenneth J Downs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:52
CPC Classifications
F; F16; F16L; F16L17/00; F16L17/06; F16L17/067; F16L17/073; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3436; F16J15/3456; F16L27/00; F16L27/08; F16L27/0804; F16L27/0808; F16L27/0824; F16L27/0828
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
145 words
A PACKING COMPRISING AN ANNULAR SEALING MEMBER OF ACID-RESISTANT MATERIAL HAVING AN INTERMEDIATE ANNULAR PORTION AND A PAIR OF FLANGED SEALING PORTIONS PROJECTING INWARD FROM THE INTERMEDIATE PORTION IN CONFRONTING RELATION TO EACH OTHER AND HAVING OUTWARDLY DIRECTED ANNULAR GROOVES ON OPPOSITE SIDES OF THE INTERMEDIATE PORTION, SAID FLANGED SEALING PORTIONS BEING MOVABLE AWAY FROM EACH OTHER RELATIVE TO SAID INTERMEDIATE PORTION, AND ENERGIZING MEANS EXTENDING CIRCUMFERENTIALLY OF SAID INTERMEDIATE PORTION AND PROJECTING INTO SAID GROOVES, SAID ENERGIZING MEANS INCLUDING A PLURALITY OF SPRING FINGERS IN SAID GOOVES WHICH FINGERS YIELDABLY BEAR OUTWARDLY AGAINST SAID SEALING PORTIONS, ADJACENT FINGERS IN EACH GROOVE BEING IN NEARLY CONTACTING RELATION SO AS TO PROVIDE A SUBSTANTIALLY CONTINUOUS CIRCLE OF PRESSURE ON SAID SEALING PORTIONS WHILE PERMITTING INDIVIDUAL FLEXING MOMENT OF EACH OF SAID FINGERS BOTH TOWARD AND AWAY FROM SAID SEALING PORTIONS INDEPENDENTLY OF THE OTHER SAID FINGERS.
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Cited
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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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |