Method and apparatus for enhancing seam unifority in spirally wound tubes
US5833592A · kind A · utility
2Cited by
15References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1996 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | Jul 17, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2711/12
- 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.