Chairs of adjustable height for use in concrete constructions
US5595039A · kind A · utility
Inventor
Key dates
| Filing date | Dec 18, 1995 |
| Grant date | Jan 21, 1997 |
| Priority date | — |
| Expiry date | Dec 18, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04C5/206
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A chair for supporting, positioning and retaining a concrete reinforcing bar in place at predetermined height in the pouring and construction of concrete slabs or beams at a jobsite wherein the concrete reinforcing bar remains as an integral, strengthening element of the construction. The chair includes a cap with a recessed or slotted upper face for retaining and supporting the concrete reinforcing bar, and a base; the cap (which supports the concrete reinforcing bar) being supported above the base via a stem. Caps and bases of standard size can be supplied to a jobsite, and chairs of varying height readily constructed therefrom at the jobsite by cutting stems of desired length from a concrete reinforcing rod, based on the requirements of slab thickness, or beam depth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.