US3132062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of in-place lining of conduit
Assignee: Pan American Petroleum Corp
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Filing: 1961-04-14
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Granted: 1964-05-05
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Expires: 1981-04-14
Abstract
No abstract record available.
Inventors
- 👤 Harold M Lang
- 👤 Lawrence B Wilder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:57
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/0017; B29C63/26; B29C63/34; B29C63/36; F; F16; F16L; F16L55/00; F16L55/16; F16L55/162; F16L55/165; F16L55/1651; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49826; Y10T29/49888
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A METHOD FOR INSTALLING A TUBULAR LAMINATED LINER IN A CONDUIT COMPRISNG PERIPHERALLY CONNECTING ONE END OF A FIRST FLEXIBLE TUBULAR LINER TO A FIRST END OF SAID CONDUIT, THEREAFTER FORCING THE FREE END OF SAID LINER THROUGH THE CONNECTED END THEREOF BY MEANS OF FLUID PRESSURE WHEREBY SAID LINER IS TURNED INSIDE-OUT IN SAID CONDUIT, PERIPHERALLY CONNECTING ONE END OF A SECOND FLEXIBLE TUBULAR LINER HAVING AN ADHESIVE MATERIAL ON THE INSIDE THEREOF TO AN END OF SAID CONDUIT, FORCING THE FREE END OF SAID SECOND LINER THROUGH THE CONNECTED END THEREOF BY MEANS OF FLUID PRESSURE WHILE MAINTAINING SUFFICIENT PRESSURE IN SAID CONCUIT TO RETAIN SAID FIRST LINER AGAINST THE WALLS OF SAID CONDUIT WHEREBY SAID SECOND LINER IS TURNED INSIDE-OUT WITHIN SAID FIRST LINER AND PLACED IN CONTACT THEREWITH, WHEREBY AN ADHESIVE BOND IS ESTABLISHED BETWEEN SAID FIRST AND SECOND LINERS.
Claim 2
Independent Claim
144 words
A METHOD FOR INSTALLING A TUBULAR LAMINATED LINER IN A CONDUIT COMPRISNG PERIPHERALLY CONNECTING ONE END OF A FIRST FLEXIBLE TUBULAR LINER TO A FIRST END OF SAID CONDUIT, THEREAFTER FORCING THE FREE END OF SAID LINER THROUGH THE CONNECTED END THEREOF BY MEANS OF FLUID PRESSURE WHEREBY SAID LINER IS TURNED INSIDE-OUT IN SAID CONDUIT, PERIPHERALLY CONNECTING ONE END OF A SECOND FLEXIBLE TUBULAR LINER HAVING AN ADHESIVE MATERIAL ON THE INSIDE THEREOF TO AN END OF SAID CONDUIT, FORCING THE FREE END OF SAID SECOND LINER THROUGH THE CONNECTED END THEREOF BY MEANS OF FLUID PRESSURE WHILE MAINTAINING SUFFICIENT PRESSURE IN SAID CONCUIT TO RETAIN SAID FIRST LINER AGAINST THE WALLS OF SAID CONDUIT WHEREBY SAID SECOND LINER IS TURNED INSIDE-OUT WITHIN SAID FIRST LINER AND PLACED IN CONTACT THEREWITH, WHEREBY AN ADHESIVE BOND IS ESTABLISHED BETWEEN SAID FIRST AND SECOND LINERS.
References Cited (Backward Citations)
US2817620A
Cited
US2794758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |