Patent US3427050A successfully refreshed from Google Patents.
US3427050A
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Coupling with bonded liner
Assignee: GALEN W KRIEG
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Filing: 1964-12-07
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Granted: 1969-02-11
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Expires: 1984-12-07
Abstract
No abstract record available.
Inventors
- 👤 Galen W Krieg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:03
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/001; F16L15/003; F16L58/00; F16L58/18; F16L58/182
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN A COUPLING CONSTRUCTION STRUCTURE COMPRISING A TUBULAR MEMBER HAVING A TAPERED INTERNALLY THREADED PORTION, SAID TUBULAR MEMBER HAVING AN INTERNAL SHOULDER FACING SAID THREADED PORTION AND AN END OF THE MEMBER, A RESILIENT AND IMPREVIOUS LINEAR IN SAID TUBULAR MEMBER SPACED FROM SAID END OF THE MEMBER AND HAVING AN AXIAL EXTENT FROM THE SHOULDER TO INCLUDE A PART OF THE THREADED PORTION OF THE TUBULAR MEMBER, AND SAID LINER BEING SECURELY BONDED TO THE TUBULAR MEMBER THROUGHOUT ITS AXIAL EXTENT AND ALSO BEING BONDED SECURELY TO THE SHOULDER, WHEREIN THE INTERNAL SURFACE OF THE LINER IS CONCAVED WITH THE CONCAVE CURVATURE BEING GREATEST ADJACENT TO THE END OF THE LINER REMOTE FROM THE SHOULDER.
Claim 2
Dependent Claim
116 words
IN A COUPLING CONSTRUCTION STRUCTURE COMPRISING A TUBULAR MEMBER HAVING A TAPERED INTERNALLY THREADED PORTION, SAID TUBULAR MEMBER HAVING AN INTERNAL SHOULDER FACING SAID THREADED PORTION AND AN END OF THE MEMBER, A RESILIENT AND IMPREVIOUS LINEAR IN SAID TUBULAR MEMBER SPACED FROM SAID END OF THE MEMBER AND HAVING AN AXIAL EXTENT FROM THE SHOULDER TO INCLUDE A PART OF THE THREADED PORTION OF THE TUBULAR MEMBER, AND SAID LINER BEING SECURELY BONDED TO THE TUBULAR MEMBER THROUGHOUT ITS AXIAL EXTENT AND ALSO BEING BONDED SECURELY TO THE SHOULDER, WHEREIN THE INTERNAL SURFACE OF THE LINER IS CONCAVED WITH THE CONCAVE CURVATURE BEING GREATEST ADJACENT TO THE END OF THE LINER REMOTE FROM THE SHOULDER.
References Cited (Backward Citations)
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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) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |