Building blocks
US4614071A · kind A · utility
Inventors
Key dates
| Filing date | Nov 16, 1983 |
| Grant date | Sep 30, 1986 |
| Priority date | — |
| Expiry date | Nov 16, 2003 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2002/0267
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A building block having a six-sided body formed of rigid, foamed, resinous, fire retardant material is bonded on two opposite sides to concrete slabs. Parallel, spaced apart grooves are provided between the body and the slabs and extend along one side of the body and parallel, spaced apart projections are provided between the body and the slabs and extend along another side of the body. The grooves and the projections of each block are so located relatively to the grooves and projections of another block as to interfit with the latter, thereby enabling a wall of any desired length and height to be constructed by interfitting the blocks of each row and course with adjacent blocks. Each of the blocks has one or more openings therein through which a stabilizing and reinforcing member may extend, thereby enabling a wall to be constructed of such blocks without necessitating the use of mortar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.