Methods of manufacturing a double-walled tube
US10638791B2 · kind B2 · utility
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3References
9Claims
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Assignee
Inventors
Key dates
| Filing date | Oct 21, 2015 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Nov 18, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/14
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing a double-walled tube is provided. The method comprises the extrusion of two tubes wherein one tube is inside the other. A first mold is provided around the outside of the outer tube and a support provided along the inside of the inner tube. Fluid is then injected into the cavity between the inner and outer tubes to mold the outer tube against the first mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.