Spiral tube making methods and apparatus including splice rejection
US5098362A · kind A · utility
0Cited by
5References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 22, 1991 |
| Grant date | Mar 24, 1992 |
| Priority date | — |
| Expiry date | Apr 22, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31C3/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In apparatus for forming cut lengths of tube by winding one or more strips of material into a continuously advancing spiral wound tube and periodically cutting off lengths of the tube, lengths of tube containing splices present in the strips are rejected at a rejection point downstream from the cut-off point by monitoring the strips for splices prior to winding, waiting until enough strip has passed the splice monitoring point to extend from the splice monitoring point to the rejection point, and rejecting the length of tube at the rejection point when that amount of strip has passed the splice monitoring point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.