Machine for welding hollow articles and process for welding these articles
US6328842A · kind A · utility
8Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1999 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Jul 15, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7172
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Machine for welding hollow articles and process for welding these articles, for example half-shells of a plastic fuel tank, using the technique of hot-plate welding. A particular process in which the articles to be welded together are preshaped by pressing against a cold plate, which might not be plane, by stretching or compressing the side walls of the articles or by pressing against the walls of a mold. Process applied to the manufacturer of injection-molded/welded fuel tanks. Use of the machine for manufacturing such tanks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.