Wall block, system and mold for making the same
US7591447B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2004 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | Nov 15, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2002/0265
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wall block comprises an upper surface spaced apart from a substantially parallel lower surface, opposed first and second faces, and opposed side surfaces converging between respective ends of the first and second faces. Blocks in a wall may be stacked on top of each other in either a vertical, set forward or set backward relationship. A three-block system for constructing walls includes a small, medium, and large block, each having two differently sized faces that can serve as the exposed face on one side of a wall. The small, medium, and large blocks can be manufactured using a single mold that is configured to provide a roughened texture resembling natural stone on two opposing faces of each block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.