Patent US392075A successfully refreshed from Google Patents.
Patent US3123101A successfully refreshed from Google Patents.
US3123101A
Expired / Lapsed
US
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Method and structure for repairing pipelines
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
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Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:45
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/26; B29C63/34; B29C63/343; F; F16; F16L; F16L55/00; F16L55/16; F16L55/162; F16L55/165; F16L55/1652; F16L55/1653; F16L58/00; F16L58/02; Y; Y10; Y10S; Y10S29/00; Y10S29/034; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7036
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A METHOD OF REPAIRING A PIPELINE COMPRISING THE STEPS OF ISOLATING A SECTION OF SAID PIPELINE TO BE REPAIRED, PROVIDING A LIMP THIN-WALLED CASING OF A LENGTH IN EXCESS OF THE LENGTH OF THE ISOLATED PIPELINE SECTION, PROVIDING A SUBSTANTIALLY FLUID-TIGHT SEAL AT ONE END OF THE CASING, INFLATING SAID CASING BY INTRODUCING PRESSURIZED FLUID THROUGH THE OTHER END OF SAID CASING IN A SUFFICIENT AMOUNT SO THAT THE CASING IS CYLINDRICAL AND SEALING SUCH END AGAINST FLUID LOSS, THEN PASSING THE INFLATED CASING THROUGH THE ISOLATED PIPELINE SECTION UNTIL THE CASING PROTRUDES FROM BOTH ENDS OF THE ISOLATED PIPELINE SECTION, REMOVING THE SEALS FROM BOTH ENDS OF THE CASING, AND LEAVING SAID CASING IN SAID PIPE.
Claim 2
Independent Claim
117 words
A METHOD OF REPAIRING A PIPELINE COMPRISING THE STEPS OF ISOLATING A SECTION OF SAID PIPELINE TO BE REPAIRED, PROVIDING A LIMP THIN-WALLED CASING OF A LENGTH IN EXCESS OF THE LENGTH OF THE ISOLATED PIPELINE SECTION, PROVIDING A SUBSTANTIALLY FLUID-TIGHT SEAL AT ONE END OF THE CASING, INFLATING SAID CASING BY INTRODUCING PRESSURIZED FLUID THROUGH THE OTHER END OF SAID CASING IN A SUFFICIENT AMOUNT SO THAT THE CASING IS CYLINDRICAL AND SEALING SUCH END AGAINST FLUID LOSS, THEN PASSING THE INFLATED CASING THROUGH THE ISOLATED PIPELINE SECTION UNTIL THE CASING PROTRUDES FROM BOTH ENDS OF THE ISOLATED PIPELINE SECTION, REMOVING THE SEALS FROM BOTH ENDS OF THE CASING, AND LEAVING SAID CASING IN SAID PIPE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |