Method for thermoforming twin sheet workpiece
US6379606B1 · kind B1 · utility
17Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1999 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Nov 17, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C51/42
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A twin sheet thermoforming method and apparatus of a type using a rotary wheel to carry each of a series of clamping frames for releasably holding sheets to be formed through successive processing stations. The clamping frames can be shuttled on the wheel to be alternatively located for alignment with one of two forming tooling sets at a forming station, and to be shiftable at an unload-load station so that unloading and loading do not occur at the same location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.