US2794758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for in-place lining of a pipeline
Assignee: Pan American Petroleum Corp
•
Filing: 1954-09-03
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Granted: 1957-06-04
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Expires: 1974-09-03
Abstract
No abstract record available.
Inventors
- 👤 Richard V Harper
- 👤 Lawrence B Wilder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:57
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/16; F16L55/162; F16L55/165; F16L55/1651; B; B29; B29C; B29C63/00; B29C63/26; B29C63/34; B29C63/36; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49872; Y10T29/53; Y10T29/53652
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
84 words
A PROCESS FOR IN-PLACE LINING OF A PIPELINE COMPRISING MOUNTING A REELED FLEXIBLE TUBULAR PLASTIC LINER IN A PRESSURE CHAMBER CONNECTED TO ONE END OF SAID PIPELINE, PERIPHERALLY CONNECTING ONE END OF SAID LINER TO SAID END OF SAID PIPELINE, SUBSEQUENTLY INJECTING A FLUID INTO SAID PRESSURE CHAMBER TO PLACE AND DISTEND SAID LINER IN SAID PIPELINE, AND PERIPHERALLY CONNECTING THE OTHER END OF SAID LINER TO SAID PIPELINE TO SEAL THE ANNULAR SPACE BETWEEN SAID LINER AND THE INSIDE WALL OF SAID PIPELINE.
Claim 2
Dependent Claim
84 words
A PROCESS FOR IN-PLACE LINING OF A PIPELINE COMPRISING MOUNTING A REELED FLEXIBLE TUBULAR PLASTIC LINER IN A PRESSURE CHAMBER CONNECTED TO ONE END OF SAID PIPELINE, PERIPHERALLY CONNECTING ONE END OF SAID LINER TO SAID END OF SAID PIPELINE, SUBSEQUENTLY INJECTING A FLUID INTO SAID PRESSURE CHAMBER TO PLACE AND DISTEND SAID LINER IN SAID PIPELINE, AND PERIPHERALLY CONNECTING THE OTHER END OF SAID LINER TO SAID PIPELINE TO SEAL THE ANNULAR SPACE BETWEEN SAID LINER AND THE INSIDE WALL OF SAID PIPELINE.
Claim 3
Independent Claim
62 words
AN APPARATUS FOR IN-PLACE LINING OF A PIPELINE INCLUDING A LINER ANCHOR CONNECTED TO ONE END OF SAID PIPELINE, A HOUSING CONNECTED TO SAID ANCHOR, A REEL OF TUBULAR FLEXIBLE PLASTIC LINER WITHIN SAID HOUSING, MEANS TO ATTACH THE END OF SAID LINER PERIPHERALLY TO SAID ANCHOR AND MEANS TO INJECT FLUID INTO SAID HOUSING AND DISPLACE SAID LINER THROUGH SAID PIPELINE.
Claim 4
Independent Claim
62 words
AN APPARATUS FOR IN-PLACE LINING OF A PIPELINE INCLUDING A LINER ANCHOR CONNECTED TO ONE END OF SAID PIPELINE, A HOUSING CONNECTED TO SAID ANCHOR, A REEL OF TUBULAR FLEXIBLE PLASTIC LINER WITHIN SAID HOUSING, MEANS TO ATTACH THE END OF SAID LINER PERIPHERALLY TO SAID ANCHOR AND MEANS TO INJECT FLUID INTO SAID HOUSING AND DISPLACE SAID LINER THROUGH SAID PIPELINE.
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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) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |