Patent ID: 6438911
Filing Date: 2002-08-27
Classification: E06B

Abstract:
A back-up shear plate in combination with two different sized metal window frames, one window frame having a frame mouth opening size of X dimension and the other window frame mouth opening of Y dimension, each frame having an elongated hollow body with inwardly disposed wall elements, front and rear wall elements and outer wall elements, said inwardly disposed wall elements forming an inwardly facing U-shaped channel adapted to retain a window therein, said outer wall elements of both said different sized window frames forming an outwardly facing frame mouth with first and second opposing wall segments on either side of said outwardly facing frame mouth, said mouth spaced apart from said U-shaped window channel, said different sized window frames having either X or Y dimensions for said outwardly facing frame mouth openings, the back-up shear plate comprising:a laterally disposed rectangular base plate having two sets of opposed sides sized to snap fit in a respective frame mouth of one of said different window frames having different frame mouth openings and spaced apart from said U-shaped window channel, said base plate having laterally disposed first and second lockable, opposite outer edge members defining slots adapted to be interlockable on corresponding opposing outer wall elements which define said respective frame mouth of said X or said Y dimension of said respective different window frames having different frame mouth openings; said base plate being arranged such that the distance between slots on one set of opposed sides of the base plate is greater than the distance between slots on the other set of opposed sides for engaging with the outer elements defining a corresponding frame mouth of said X or said Y dimension of said respective different window frames.