Pattern assemblies
US4300617A · kind A · utility
8Cited by
6References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 16, 1979 |
| Grant date | Nov 17, 1981 |
| Priority date | — |
| Expiry date | Aug 16, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C9/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In the art of investment casting, a refractory mold characterized by a casting system including a sprue passage, a cup at one end of the sprue passage, a runner extending from the cup and connecting to the sprue passage near its other end, at least one pattern cavity gated into the sprue passage between the ends of the runner, and a refractory wall in the cup dividing it into a pouring cup portion communicating with the runner and another portion communicating with the sprue passage. A pattern set-up designed to make the mold by the "lost pattern" process of investment casting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.