US3353565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe end insert
Assignee: TUBE TURNS Inc
•
Filing: 1964-09-21
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Granted: 1967-11-21
•
Expires: 1984-09-21
Abstract
No abstract record available.
Inventors
- 👤 Markham Junius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:18
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/12; F16L55/128; F16L55/132; F16L21/00; F16L21/02; F16L21/022; F16L25/00; F16L25/14; F16L33/00; F16L33/30; F16L37/00; F16L37/02; F16L37/04; F16L37/05; Y; Y10; Y10S; Y10S285/00; Y10S285/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A PIPE END INSERT COMPRISING A RIGID SUPPORTING STRUCTURE, AN ELONGATED HOLLOW SLEEVE OF ELASTIC MATERIAL HAVING A FIRST END SECURED TO SAID RIGID SUPPORTING STRUCTURE AND A SECOND END ADAPTED TO BE INSERTED INTO A PIPE END, SAID SECOND END OF SAID SLEEVE BEING OPEN FOR COMMUNICATION WITH THE INTERIOR OF THE PIPE SO THAT SAID SLEEVE MAY BE RADIALLY EXPANDED BY PRESSURE IN THE PIPE, A FLEXIBLE ELONGATED RADIALLY EXPANDIBLE SHEATH CARRIED BY THE SURROUNDING SAID SLEEVE THROUGHOUT AT LEAST A MAJOR PORTION OF THE LENGTH THEREOF, SAID SHEATH COMPRISING A MULTIPLICITY OF RELATIVELY STRAIGHT FLEXIBLE GRIPPING ELEMENTS ARRANGED TO EXTEND GENERALLY LONGITUDINALLY OF SAID SLEEVE, SAID SHEATH ADAPTED TO BE FORCED RADIALLY OUTWARD BY SAID SLEEVE INTO FRICTIONAL GRIPPING ENGAGEMENT WITH THE INNER SURFACE OF THE PIPE UPON EXPANSION OF SAID SLEEVE THROUGHOUT AT LEAST A MAJOR PORTION OF THE LENGTH OF SAID SHEATH.
Claim 2
Dependent Claim
147 words
A PIPE END INSERT COMPRISING A RIGID SUPPORTING STRUCTURE, AN ELONGATED HOLLOW SLEEVE OF ELASTIC MATERIAL HAVING A FIRST END SECURED TO SAID RIGID SUPPORTING STRUCTURE AND A SECOND END ADAPTED TO BE INSERTED INTO A PIPE END, SAID SECOND END OF SAID SLEEVE BEING OPEN FOR COMMUNICATION WITH THE INTERIOR OF THE PIPE SO THAT SAID SLEEVE MAY BE RADIALLY EXPANDED BY PRESSURE IN THE PIPE, A FLEXIBLE ELONGATED RADIALLY EXPANDIBLE SHEATH CARRIED BY THE SURROUNDING SAID SLEEVE THROUGHOUT AT LEAST A MAJOR PORTION OF THE LENGTH THEREOF, SAID SHEATH COMPRISING A MULTIPLICITY OF RELATIVELY STRAIGHT FLEXIBLE GRIPPING ELEMENTS ARRANGED TO EXTEND GENERALLY LONGITUDINALLY OF SAID SLEEVE, SAID SHEATH ADAPTED TO BE FORCED RADIALLY OUTWARD BY SAID SLEEVE INTO FRICTIONAL GRIPPING ENGAGEMENT WITH THE INNER SURFACE OF THE PIPE UPON EXPANSION OF SAID SLEEVE THROUGHOUT AT LEAST A MAJOR PORTION OF THE LENGTH OF SAID SHEATH.
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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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |