US3289288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of installing plastic liners inside of pipes
Assignee: Individual
•
Filing: 1963-05-02
•
Granted: 1966-12-06
•
Expires: 1983-05-02
Abstract
No abstract record available.
Inventors
- 👤 Antonio E Croteau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:31
CPC Classifications
F; F16; F16L; F16L58/00; F16L58/02; F16L58/04; F16L58/10; F16L58/1009; F16L58/1027; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49908; Y10T29/49915; Y10T29/49947; Y10T29/49948
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A METHOD OF LINING A PIPELINE WITH A TUBULAR PLASTIC LINER, COMPRISING THE STEPS OF CUTTING OFF A PIPELINE SECTION LEAVING A PLURALITY OF SECTIONS, PULLING A TUBULAR PLASTIC LINING THROUGH AT LEAST EACH REMAINING SECTION, FOLDING BACK THE FREE END OF EACH PLASTIC LINER OVER THE OUTSIDE OF THE CORRESPONDING PIPELINE SECTION, AND INSTALLING A PRESSURE-TIGHT JOINT AT EACH OVER EACH FOLDED BACK PLASTIC LINER AT THE END OF THE CORRESPONDING PIPELINE SECTION BY MOUNTING A SEALING WASHER OVER EACH FOLDED-OVER PLASTIC LINER END, INSTALLING A CLAMP COUPLING OVER THE SEALING WASHER, AND TIGHTENING SAID CLAMP COUPLING AGAINST SAID SEALING WASHER TO THEREBY PROVIDE A PRESSURE-TIGHT JOINT.
Claim 2
Independent Claim
108 words
A METHOD OF LINING A PIPELINE WITH A TUBULAR PLASTIC LINER, COMPRISING THE STEPS OF CUTTING OFF A PIPELINE SECTION LEAVING A PLURALITY OF SECTIONS, PULLING A TUBULAR PLASTIC LINING THROUGH AT LEAST EACH REMAINING SECTION, FOLDING BACK THE FREE END OF EACH PLASTIC LINER OVER THE OUTSIDE OF THE CORRESPONDING PIPELINE SECTION, AND INSTALLING A PRESSURE-TIGHT JOINT AT EACH OVER EACH FOLDED BACK PLASTIC LINER AT THE END OF THE CORRESPONDING PIPELINE SECTION BY MOUNTING A SEALING WASHER OVER EACH FOLDED-OVER PLASTIC LINER END, INSTALLING A CLAMP COUPLING OVER THE SEALING WASHER, AND TIGHTENING SAID CLAMP COUPLING AGAINST SAID SEALING WASHER TO THEREBY PROVIDE A PRESSURE-TIGHT JOINT.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |