Method and apparatus for molding concrete block products
US4265609A · kind A · utility
25Cited by
3References
10Claims
0Family size
Inventor
Key dates
| Filing date | Dec 13, 1978 |
| Grant date | May 5, 1981 |
| Priority date | — |
| Expiry date | Dec 13, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28B7/10
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for molding concrete block products is disclosed, in which a surface layer and a back layer are formed by supplying different concrete aggregates into a molding box, pressure and vibration are applied to the concrete aggregates in the molding box to mold a concrete block, the molding box is then turned upside-down for curing and the concrete block is ejected from a lower portion of the inverted molding box.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.