US2824033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of manufacturing composite pipe
Assignee: Individual
•
Filing: 1955-03-01
•
Granted: 1958-02-18
•
Expires: 1975-03-01
Abstract
No abstract record available.
Inventors
- 👤 Donaldson Chase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:51
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/80; B29C53/84; B29C53/845; F; F16; F16L; F16L9/00; F16L9/16; B29L; B29L2009/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN A METHOD OF MAKING A COMPOSITE TUBULAR PIPE, THE STEPS OF FORMING AT LEAST TWO SPIRALLY WOUND TUBES FROM A PLURALITY OF CONTINUOUS TAPES OF FIBROUS MATERIALS IMPREGNATED WITH A HEAT CURABLE RESINOS MATERIAL, ONE OF SAID TUBES CARRYING A SUPERPOSED LAYER OF RESIN IMPREGNATED FILLER MEDIA, THE OUTER DIAMETER OF SUCH TUBE AND ITS ADDED LAYER BEING SLIGHTLY LESS THAN THE INTERIOR DIAMETER OF THE OTHER TUBE, APPLYING A LAYER OF HEAT CURABLE RESIN ADHESIVE TO THE SURFACE OF THE TUBE OF LESSER DIAMETER, INSERTING SAID TUBE OF LESSER DIAMETER INTO THE OTHER OF SAID TUBES IN TELESCOPIC RELATIONSHIOP, AND HEATING THE ASSEMBLY TO UNITE THE SEVERAL ELEMENTS THEREOF AND TO CURE THE RESIN MATRIX IN SITU.
Claim 2
Dependent Claim
119 words
IN A METHOD OF MAKING A COMPOSITE TUBULAR PIPE, THE STEPS OF FORMING AT LEAST TWO SPIRALLY WOUND TUBES FROM A PLURALITY OF CONTINUOUS TAPES OF FIBROUS MATERIALS IMPREGNATED WITH A HEAT CURABLE RESINOS MATERIAL, ONE OF SAID TUBES CARRYING A SUPERPOSED LAYER OF RESIN IMPREGNATED FILLER MEDIA, THE OUTER DIAMETER OF SUCH TUBE AND ITS ADDED LAYER BEING SLIGHTLY LESS THAN THE INTERIOR DIAMETER OF THE OTHER TUBE, APPLYING A LAYER OF HEAT CURABLE RESIN ADHESIVE TO THE SURFACE OF THE TUBE OF LESSER DIAMETER, INSERTING SAID TUBE OF LESSER DIAMETER INTO THE OTHER OF SAID TUBES IN TELESCOPIC RELATIONSHIOP, AND HEATING THE ASSEMBLY TO UNITE THE SEVERAL ELEMENTS THEREOF AND TO CURE THE RESIN MATRIX IN SITU.
References Cited (Backward Citations)
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Cited
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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) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |