Apparatus for producing casting mould parts by compressing sand or a similar material between a pressure plate and a counter-pressure plate
US4267878A · kind A · utility
3Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1980 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | May 20, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C11/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In an apparatus for producing casting mould parts and comprising a pressure or squeeze chamber with movable end walls formed by a pressure plate and a counter-pressure plate, the hydraulic drive units for the said plates are constituted by piston/cylinder devices, in which the piston members are stationary, while the cylinder members are connected with the plates and dimensioned so as to stand up to any bending stresses exerted by said plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.