Process and equipment for producing concrete products having blended colors
US6910796B2 · kind B2 · utility
16Cited by
17References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2002 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Apr 9, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28C5/365
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process and equipment for producing multi-color concrete products, including architectural concrete blocks, concrete bricks, modular concrete products that are suitable for use in landscaping applications, such as retaining wall blocks, concrete pavers, and concrete slabs. The invention includes a spray mechanism that sprays liquid pigment onto concrete discharged from a hopper. The concrete then proceeds to a blending mechanism which blends the pigment into the concrete to produce a multi-color concrete blend. The concrete blend is then used to produce multi-colored concrete products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.