Fire-rated corner guard structure
US5442884A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 16, 1994 |
| Grant date | Aug 22, 1995 |
| Priority date | — |
| Expiry date | Sep 16, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F19/028
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A fire-resistant wall structure is provided with a recessed corner guard, for absorbing impact forces, particularly at an external corner. To compensate for the relative loss of fire-resistance capability, in the area in which the wall structure is recessed to receive the corner guard structure, surfaces within the recess are provided with a layer of intumescent paint which, when exposed to sufficiently elevated temperature, expands to develop a thick, cellular foam providing a highly effective insulating layer. The intumescent paint is applied directly to surfaces of an extruded aluminum structural element installed in the recess. Preferably, the paint is applied at the factory where the corner guard components are manufactured. Significant economies and other benefits are realized in relation to prior practices of installing ceramic matting in the wall recess at the construction site.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.