Pipe manufacturing line
US5171500A · kind A · utility
0Cited by
19References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1991 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Dec 20, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/912
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A production line for manufacturing corrugated pipe also has a calibrating basin for manufacturing smooth-walled pipe arranged between form paths of the corrugator when the paths have been separated. An extruder that normally feeds a molten plastic pipe blank to the corrugator for making corrugated pipe then feeds the pipe blank to the calibrating basin for making smooth-walled pipe, and other down-the-production-line equipment can be the same, too.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.