Method for making and treating wall blocks
US6803002B2 · kind B2 · utility
33Cited by
21References
55Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2002 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Oct 12, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28D1/26
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for treating the surfaces and edges of a block to mimic the appearance of natural stone. The apparatus and method can treat up to four sides of a block, can be adjusted to provide varying degrees of surface and edge treatment, and useful in high volume block production equipment. Blocks are produced having a natural, weathered appearance without the damage, breakage, dust, or expense associated with conventional splitting and tumbling methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.