Abstract: As installation clip for use in supporting a window, such as a mulled window, during installation in a building wall opening, and reinforcing the window after installation against the pressures of wind or the like. The installation clip is of unitary construction with a generally flat base portion, and a set of counterextending, raised tab portions projecting upwardly and outwardly from one side of the base portion. The height and width of the raised tab portions are selected to conform substantially to the dimensions of a recess in the bottom frame member of the window with which the clip is to be used. The installation clip is mounted to the sill structure of the building wall opening, with its tab portions facing into the center of the opening, and the window is inserted into the opening onto the mounted clip. The raised tab portions of the clip engage in the recess in the window bottom frame, and hold the window in place while it is permanently secured in the opening by conventional means.

Abstract: A high structural load window sash latch includes a load applying housing wrap that extends around the interior face of a window sash. The housing wrap transfers the majority of positive forces incident upon the sash to a latch housing, where the forces are transferred to a latch bolt and then to the window jamb. Further, two load-bearing screws also secure the latch housing to the sash, while a hold down screw prevents the housing from lifting.

Abstract: An impact resistant tilt window assembly includes a window frame with side jambs that have legs that extend in the direction of the exterior of the frame, an upper sash, a lower sash that moves vertically and tilts inwardly and tilt latch assemblies that are positioned on the lower sash, each tilt latch assembly includes a latch bolt with a nose end that includes a notch that is sized to engage the associated jamb leg when the lower sash is in a vertical orientation. The notch has an interior leg that moves along an interior side of the jamb leg and an exterior leg that extends behind an exterior side of the jamb leg and moves along the jamb leg when the sash moves vertically. The window assembly may further include U-shaped reinforcing inserts that are positioned within the jambs such that the tilt latch assemblies engage the inserts when the lower sash is in the closed position.