US3173822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuously forming thermoplastic flexible tubing
Assignee: Individual
•
Filing: 1960-07-25
•
Granted: 1965-03-16
•
Expires: 1980-07-25
Abstract
No abstract record available.
Inventors
- 👤 Rigaut Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:38
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/80; B29C53/82; B29C53/821; B29C53/825; B29C53/827; B29C53/56; B29C53/58; B29C53/60; B29C53/607; B29C53/78; B29L; B29L2023/00; B29L2023/18; B29L2023/186
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
IN AN APPARATUS FOR CONTINUOUSLY FORMING FLEXIBLE HOSES OF THE TYPE FORMED OF A STRIP OF FLEXIBLE MATERIAL INCLUDING A CONTINUOUS RIB HAVING FINS ALONG ITS LONGITUDINAL EDGES AND WITH A REINFORCING MEMBER OF THERMOPLASTIC MATERIAL EMBEDDED IN THE RIB FORMED INTO AN INTEGRAL STRUCTURE CONSTITUTED BY A SUCCESSION OF CONVOLUTIONS OF EQUAL DIAMETER, THE ADJACENT FINS OF ADJACENT CONVOLUTIONS BEING SECURED TOGETHER, SAID APPARATUS COMPRISING FIRST PRESSURE AND GUIDING MEANS TO WELD THE ADJACENT FINS TOGETHER IN A CONTINUOUS SEAM AND SECOND PRESSURE AND GUIDING MEANS, SAID SECOND PRESSURE AND GUIDING MEANS BEING AT A DISTANCE APART, IN A DIRECTION PERPENDICULAR TO THE AXIS OF HELICAL MOVEMENT OF THE FLEXIBLE HOSE AS IT IS FORMED, FROM SAID FIRST PRESSURE AND GUIDING MEANS, WHEREBY THE HELICAL DISPLACEMENT OF THE FLEXIBLE HOSE STRUCTURE IS SECURED.
Claim 2
Dependent Claim
134 words
IN AN APPARATUS FOR CONTINUOUSLY FORMING FLEXIBLE HOSES OF THE TYPE FORMED OF A STRIP OF FLEXIBLE MATERIAL INCLUDING A CONTINUOUS RIB HAVING FINS ALONG ITS LONGITUDINAL EDGES AND WITH A REINFORCING MEMBER OF THERMOPLASTIC MATERIAL EMBEDDED IN THE RIB FORMED INTO AN INTEGRAL STRUCTURE CONSTITUTED BY A SUCCESSION OF CONVOLUTIONS OF EQUAL DIAMETER, THE ADJACENT FINS OF ADJACENT CONVOLUTIONS BEING SECURED TOGETHER, SAID APPARATUS COMPRISING FIRST PRESSURE AND GUIDING MEANS TO WELD THE ADJACENT FINS TOGETHER IN A CONTINUOUS SEAM AND SECOND PRESSURE AND GUIDING MEANS, SAID SECOND PRESSURE AND GUIDING MEANS BEING AT A DISTANCE APART, IN A DIRECTION PERPENDICULAR TO THE AXIS OF HELICAL MOVEMENT OF THE FLEXIBLE HOSE AS IT IS FORMED, FROM SAID FIRST PRESSURE AND GUIDING MEANS, WHEREBY THE HELICAL DISPLACEMENT OF THE FLEXIBLE HOSE STRUCTURE IS SECURED.
References Cited (Backward Citations)
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US2674296A
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US2516864A
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US2713381A
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US2731040A
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US2759521A
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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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |