Fabricated sheet metal compression mold and method of making
US4390156A · kind A · utility
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1References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1981 |
| Grant date | Jun 28, 1983 |
| Priority date | — |
| Expiry date | Jan 23, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C43/52
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A compression mold includes punch and cavity components fabricated from initially flat sheets of relatively thin metal. The sheets of each component are shaped, assembled and joined to provide box-like components defining mating mold surfaces yielding molded parts which may be straight or laterally and/or vertically curved. The hollow interior of the two components allows for the circulation therethrough of an appropriate heat transfer medium to permit molding of either thermosetting or thermoplastic compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.