Patent US3339787A successfully refreshed from Google Patents.
US3339787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure seal
Assignee: Hahn and Clay
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Filing: 1965-07-06
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Granted: 1967-09-05
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Expires: 1985-07-06
Abstract
No abstract record available.
Inventors
- 👤 Raymond E Pechacek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:03
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/46; F16J15/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A HIGH PRESSURE SEAL ADAPTED TO SEAL IN CONTACT WITH A RADIALLY EXPANSIBLE WALL OF A PRESSURE VESSEL, COMPRISING: (A) A CLOSURE BODY ADAPTED TO BE POSITIONED IN SAID PRESSURE VESSEL, (B) A PLATE EXTENDING FROM SAID CLOSURE BODY, (C) AN ANNULAR LIP ON SAID PLATE, (D) AN ANNULAR RING IN SUBSTANTIAL CONTACT WITH SAID LIP OF SAID PLATE AND SAID WALL, (E) SAID ANNULAR RING HAVING EXTERNAL GROOVES AT THE POINTS OF SUBSTANTIAL CONTACT OF SAID RING WITH SAID LIP OF SAID PLATE AND SAID WALL, (F) AN ELASTIC SEAL RING IN EACH OF SAID GROOVES FOR SEALING ENGAGEMENT BETWEEN SAID RING AND SAID LIP OF SAID PLATE AND SAID RING AND SAID WALL OF THE VESSEL, AND
Claim 2
Dependent Claim
119 words
A HIGH PRESSURE SEAL ADAPTED TO SEAL IN CONTACT WITH A RADIALLY EXPANSIBLE WALL OF A PRESSURE VESSEL, COMPRISING: (A) A CLOSURE BODY ADAPTED TO BE POSITIONED IN SAID PRESSURE VESSEL, (B) A PLATE EXTENDING FROM SAID CLOSURE BODY, (C) AN ANNULAR LIP ON SAID PLATE, (D) AN ANNULAR RING IN SUBSTANTIAL CONTACT WITH SAID LIP OF SAID PLATE AND SAID WALL, (E) SAID ANNULAR RING HAVING EXTERNAL GROOVES AT THE POINTS OF SUBSTANTIAL CONTACT OF SAID RING WITH SAID LIP OF SAID PLATE AND SAID WALL, (F) AN ELASTIC SEAL RING IN EACH OF SAID GROOVES FOR SEALING ENGAGEMENT BETWEEN SAID RING AND SAID LIP OF SAID PLATE AND SAID RING AND SAID WALL OF THE VESSEL, AND
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |