Mold making method
US4925611A · kind A · utility
12Cited by
9References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 1987 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | Oct 19, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2863/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of making molds which is easy, quick and can be accomplished at room temperatures and atmospheric pressures. The method includes applying at least one layer of gel to a male mandrel and curing at least one layer of polyester impregnated fabric to the gel layer. At least one layer of epoxy impregnated fabric is cured to the polyester impregnated fabric. At least one layer of plaster impregnated is cured to the epoxy impregnated fabric. At least one layer of epoxy impregnated fabric is cured to the plaster impregnated fabric. The resulting mold is removed from the male mandrel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.