US3233024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible tubes and the manufacture thereof
Assignee: IMP Eastman Corp
•
Filing: 1960-08-31
•
Granted: 1966-02-01
•
Expires: 1980-08-31
Abstract
No abstract record available.
Inventors
- 👤 Jackson Harold Ernest
- 👤 Moss Trevor Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:24
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/11; B; B29; B29C; B29C48/00; B29C48/03; B29C48/06; B29C48/09; B29C48/10; B29C48/15; B29C48/151; B29C48/152; B29C48/153; B29C48/25; B29C48/88; B29C48/911; B29C48/9115; B29C48/919; F16L11/08; F16L11/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A METHOD OF FORMING A FLEXIBLE TUBE HAVING A PLURALITY OF SUPERIMPOSED TUBULAR LAYERS, THE OUTER ONE OF WHICH IS FORMED WITH A SERIES OF LONGITUDINALLY EXTENDING RIBS AND GROOVES, SAID METHOD COMPRISING THE STEPS OF: FORMING THE OUTER LAYER OVER THE OUTERMOST PREVIOUSLYFORMED INNER LAYER OF THE TUBE BY EXTRUDING OVER SAID INNER LAYER HOT MATERIAL SETTABLE TO DEFINE THE OUTER LAYER HAVING SAID RIBS AND GROOVES; AND SUBSEQUENTLY PASSING THE TUBE THROUGH A COOLING DEVICE IN WHICH A COOLING MEDIUM IS DIRECTED SUBSTANTIALLY ONLY AGAINST THE GROOVED PORTIONS OF THE SURFACE OF THE TUBE AS IT PASSES THROUGH THE DEVICE.
Claim 2
Independent Claim
102 words
A METHOD OF FORMING A FLEXIBLE TUBE HAVING A PLURALITY OF SUPERIMPOSED TUBULAR LAYERS, THE OUTER ONE OF WHICH IS FORMED WITH A SERIES OF LONGITUDINALLY EXTENDING RIBS AND GROOVES, SAID METHOD COMPRISING THE STEPS OF: FORMING THE OUTER LAYER OVER THE OUTERMOST PREVIOUSLYFORMED INNER LAYER OF THE TUBE BY EXTRUDING OVER SAID INNER LAYER HOT MATERIAL SETTABLE TO DEFINE THE OUTER LAYER HAVING SAID RIBS AND GROOVES; AND SUBSEQUENTLY PASSING THE TUBE THROUGH A COOLING DEVICE IN WHICH A COOLING MEDIUM IS DIRECTED SUBSTANTIALLY ONLY AGAINST THE GROOVED PORTIONS OF THE SURFACE OF THE TUBE AS IT PASSES THROUGH THE DEVICE.
References Cited (Backward Citations)
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US2512433A
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US3049762A
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US3106748A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |