Manufacturing apparatus for film of non-uniform thickness and manufacturing method for film of non-uniform thickness
US10035289B2 · kind B2 · utility
1Cited by
15References
28Claims
0Family size
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Key dates
| Filing date | Mar 19, 2015 |
| Grant date | Jul 31, 2018 |
| Priority date | — |
| Expiry date | Mar 19, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2011/0075
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The manufacturing apparatus of the present invention comprises a die for extruding a resin plate and a first roller and a second roller for molding the resin plate. The manufacturing apparatus further comprises: an inner deckel for dividing the resin plate and pre-forming a thick section; and a main molding section provided on the first roller and/or the second roller for molding a non-uniform thickness section from the thick section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.