Apparatus for manufacturing embossed articles of synthetic resin
US4781569A · kind A · utility
16Cited by
15References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1986 |
| Grant date | Nov 1, 1988 |
| Priority date | — |
| Expiry date | Oct 16, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1039
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for manufacturing an embossed article of synthetic resin comprising heating a synthetic resin sheet to a softening temperature; overlaying the heated synthetic resin sheet on an embossing die made by an electro-chemical molding process and having an embossing surface with an embossing pattern thereon and a multitude of fine vacuum pores distributed uniformly over the entire embossing surface; and forcing the synthetic resin sheet against the embossing surface by applying suction through the fine vacuum pores to imprint the embossing pattern onto the synthetic resin sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.