Apparatus for forming tapered spiral tubes
US6339945B2 · kind B2 · utility
21Cited by
18References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 2001 |
| Grant date | Jan 22, 2002 |
| Priority date | — |
| Expiry date | May 3, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21C37/126
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Apparatus for forming tapered spiral tubes from strips, is disclosed. The apparatus comprises a spiral tube forming system for forming a strip into a spiral tube; a strip infeed system adapted for feeding a strip to the pipe forming system; and computer-controlled means for continuously varying the angular orientation of the tube forming system relative to the strip infeed system to selectively vary the diameter of the forming tube. The selective variation of the diameter includes linearly tapered and curved profiles, as well as constant (unchanging) diameter profiles and combinations thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.