Mortarless concrete block system having reinforcing bond beam courses
US4426815A · kind A · utility
Inventor
Key dates
| Filing date | Nov 10, 1980 |
| Grant date | Jan 24, 1984 |
| Priority date | — |
| Expiry date | Nov 10, 2000 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2002/026
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a mortarless interlocking concrete block system, general purpose intersection blocks have parallel grooves formed on their bottom surfaces; but each has mating ridges on the upper surface of its inner end only. The top surface of its corner end portion is flat, to permit an overlying course to fit thereon either at right angles or in linear alignment. The corner end portion has, in each of its two opposite side faces and in its outer end face, parallel vertical grooves matable with tongues on the system's stretcher blocks, to provide interengagement at both left and right corners and T-shaped and crossing-wall intersections. For bond beam courses, a bond beam intersection block with similarly groove corner end faces, has at its inner end portion a closed-bottom channel with saddle-like webs extending between the channel sides, to open through to its corner core and support horizontal reinforcing rods. Consistently formed bond beam blocks and provided, whose tongues may engage any of the grooved corner end faces at wall corners and intersections. Breakout provisions in the corner core inward of these faces make it simple, at any intersection, to lead horizontal reinforcing rods t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.