Patent US3098577A successfully refreshed from Google Patents.
US3098577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure vessel joint
Assignee: Dorr Oliver Inc
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Filing: 1960-09-16
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Granted: 1963-07-23
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Expires: 1980-09-16
Abstract
No abstract record available.
Inventors
- 👤 Karl A Dietrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:11
CPC Classifications
F; F16; F16J; F16J13/00; F17; F17C; F17C1/00; F17C1/02; F17C1/04; F17C1/06; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0147; F17C2201/0157; F17C2201/05; F17C2201/056; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0609; F17C2203/0612; F17C2203/0614; F17C2203/0624; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0658; F17C2203/066; F17C2209/00; F17C2209/22; F17C2209/221; F17C2209/23; F17C2209/234; F17C2223/00; F17C2223/03; F17C2223/035; F17C2260/00; F17C2260/01; F17C2260/011
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A CYLINDRICAL PRESSURE VESSEL, COMPRISING A DOMED ROUND END MEMBER HAVING AN OUTER CYLINDRICAL SURFACE AT THE WIDE END THEREOF; A RING MEMBER COXIALLY SURROUNDING SAID END MEMBER AND HAVING AN OUTER SUBUSTANTIALLY CYLINDRICAL FACE PROVIDING TOGETHER WITH SAID CYLINDRICAL FACE OF THE DOMED MEMBER A COMBINED CYLINDRICAL ATTACHMENT AREA, AND HAVING AN INNER SUBSTANTIALLY CONICAL FACE SUBSTANTIALLY CONFORMING TO AN ADJACENT ANNULAR PORTION OF THE SURFACE OF THE DOMED MEMBER AND ADAPTED TO RESTRAIN THE SAME AGAINST INTERNAL PRESSURE IN THE VESSEL; A TUBULAR CONSTRUCTION CONSISTING OF HELICALLY WOUND STRIP MATERIAL OF SUBSTANTIAL TENSILE STRENGTH WITH A LARGE RATIO OF WIDTH TO THICKNESS, SAID STRIP MATERIAL HAVING AN END PORTION WOUND AROUND SAID COMBINED ATTACHMENT AREA WITH THE WINDINGS OF THE STRIP MATERIAL TIGHTLY WOUND HELI-
Claim 2
Dependent Claim
127 words
A CYLINDRICAL PRESSURE VESSEL, COMPRISING A DOMED ROUND END MEMBER HAVING AN OUTER CYLINDRICAL SURFACE AT THE WIDE END THEREOF; A RING MEMBER COXIALLY SURROUNDING SAID END MEMBER AND HAVING AN OUTER SUBUSTANTIALLY CYLINDRICAL FACE PROVIDING TOGETHER WITH SAID CYLINDRICAL FACE OF THE DOMED MEMBER A COMBINED CYLINDRICAL ATTACHMENT AREA, AND HAVING AN INNER SUBSTANTIALLY CONICAL FACE SUBSTANTIALLY CONFORMING TO AN ADJACENT ANNULAR PORTION OF THE SURFACE OF THE DOMED MEMBER AND ADAPTED TO RESTRAIN THE SAME AGAINST INTERNAL PRESSURE IN THE VESSEL; A TUBULAR CONSTRUCTION CONSISTING OF HELICALLY WOUND STRIP MATERIAL OF SUBSTANTIAL TENSILE STRENGTH WITH A LARGE RATIO OF WIDTH TO THICKNESS, SAID STRIP MATERIAL HAVING AN END PORTION WOUND AROUND SAID COMBINED ATTACHMENT AREA WITH THE WINDINGS OF THE STRIP MATERIAL TIGHTLY WOUND HELI-
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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) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |