Method and apparatus for preparing foundry moulds or cores
US3943991A · kind A · utility
2Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1975 |
| Grant date | Mar 16, 1976 |
| Priority date | — |
| Expiry date | Apr 14, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C5/0418
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method and apparatus for preparing relatively large size foundry moulds and cores from cold-setting foundry sand mixtures wherein successive batches of sand and binder on the one hand with sand and catalyst on the other hand are mixed in a chamber having a rotary mixing element. The batches are discharged from the chamber by gravity into a mould or core box and the chamber is purged by a blast of compressed gas between the successive mixing operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.