Tube corrugating apparatus and method
US6619089B2 · kind B2 · utility
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10References
10Claims
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Inventor
Key dates
| Filing date | May 9, 2002 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | May 9, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D15/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for forming annularly-corrugated tubes and cables utilizing a multiple gear corrugating head which is rotated about the tube or cable, to be corrugated as the tube or cable is drawn through the head. Two or more of the gears each have a different prime number of gear teeth which form the corrugation. A radio-frequency cable formed by the invention exhibit greater consistency and quality than cables produced by conventional corrugating gear heads, and in particular, show improved VSWR characteristics
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.