Patent ID: 6532705
Filing Date: 2003-03-18
Classification: E06B

Abstract:
A back-up shear plate in combination with a metal window frame having an elongated hollow body with inwardly disposed wall elements, front and rear wall elements and outer wail elements said inwardly disposed wall elements forming an inwardly facing U-shaped channel adapted to retain a window therein said outer wall elements including first and second opposing wall segments laterally extending towards each other to define a span therebetween as a mouth, said mouth spaced apart from said U-shaped window channel, the back-up shear plate comprising:a laterally disposed basic plate sized to snap fit onto and extend said span of said first and second opposing wall segments with said base plate being disposed in said mouth and spaced apart from said U-shaped window channel, said base plate having laterally disposed opposite outer edge interlock portions, said interlock portions adapted to interlock on corresponding ones of said first and second opposing wall segments; and said base plate made of a plastic material.