Method and apparatus for enhancing seam uniformity in spirally wound tubes
US6033352A · kind A · utility
1Cited by
19References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1998 |
| Grant date | Mar 7, 2000 |
| Priority date | — |
| Expiry date | Jun 18, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2009/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention provides a method and apparatus for spirally winding a tube of enhanced spiral seam uniformity that is simple and reliable. The spirally wound tube is formed using a spiral pitch control surface that engages with an exterior or interior cylindrical surface of a spirally wound tube and constrains movement of the tube to a predetermined spiral rotation as it is formed on a cylindrical stationary mandrel. Preferably, the pitch control surface comprises a tube engaging surface positioned along at least one spirally aligned portion of the exterior portion of the tube forming mandrel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.