Modular retaining wall block system including wall blocks having replaceable dual purpose facing panels and removable spacing tabs
US5851088A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1997 |
| Grant date | Dec 22, 1998 |
| Priority date | — |
| Expiry date | Aug 4, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D2300/0006
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A modular plastic wall block to be used for forming a retaining wall including a plurality of vertically superimposed courses, each course including a plurality of laterally juxtaposed wall blocks. Each wall block is formed of a wall block frame and an easily replaceable facing panel interconnected by a tongue and groove connection. By rotating the facing panel by 90.degree., it can be used to overly and conceal at least a portion of the top of an uppermost course of wall blocks in the retaining wall. The wall blocks include elements for side-to-side connection enabling juxtaposed wall blocks in each course to be laterally aligned to form a straight portion of a face of a retaining wall, or to be angularly positioned to form concave or convex portions of the face of the retaining wall without the formation of gaps between adjacent wall blocks. Spacing tabs are removably carried by each wall block to enable the user to selectively adjust the spacing between the point of engagement between superimposed wall blocks and the front faces of the block below for the formation of vertical or stepped back retaining wall faces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.