Sheet support apparatus
US4101252A · kind A · utility
16Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 14, 1976 |
| Grant date | Jul 18, 1978 |
| Priority date | — |
| Expiry date | May 14, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2406/112
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Sheet supporting apparatus for a continuous sheet, differential pressure thermoforming machine comprising laterally spaced apart sheet support members for supporting the lateral edges of a formable sheet and for moving the sheet in a forward path of travel. The apparatus includes an open top, air receiving, sheet support box disposed interjacent the laterally spaced sheet support members upstream of a differential pressure mold, and mechanism for introducing air under pressure to the inside of the box for supporting a midportion of the sheet of plastic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.