Mold liner for facilitating manufacture of reinforced drainage blocks
US6632046B2 · kind B2 · utility
3Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2001 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Aug 17, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C11/225
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A liner for use in casting a drainage block has an arched surface which defines an upper profile of a main drainage channel and the water inlets opening into the outer surface of the block as well as providing clips for supporting and locating reinforcing bars during the casting of the blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.