Apparatus for producing concrete elements of high dimensional accuracy
US4439131A · kind A · utility
4Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1982 |
| Grant date | Mar 27, 1984 |
| Priority date | — |
| Expiry date | Feb 11, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28B13/0215
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Concrete elements and a lifting mechanism are secured against tilting at the time of form removal, and the formwork is fixed in place. In the apparatus, a forming unit, a concreting unit and a form removal unit are provided. The forming unit has a single rigid form adapted to shape the bottom and the sides of the elements or products, is open on top and is assembled for use as required. The form removal unit has means for maintaining the product and the removal unit itself in a fixed position against tilting, as well as means for maintaining the formwork in a fixed position, and means for actuating them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.