Pressing block for die pressing thermoplastic material
US4018552A · kind A · utility
20Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1975 |
| Grant date | Apr 19, 1977 |
| Priority date | — |
| Expiry date | Nov 5, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/81
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A pressing block for a phonograph or video record press in which ducts for cooling and heating media for the die are formed by a thin layer of a porous heat-conducting material provided between two thin metal sheets and bonded thereto. The assembly is connected on its side remote from the die to a supporting element of at least partially heat-insulating material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.