Combination corner lock and hanger

Claim 1

In a frame construction comprising horizontal and vertical members which define the outer periphery of a door or window and which intersect at the corners thereof, wherein the said horizontal and vertical members are formed of extruded shapes having respective horizontal and vertical channels therein, the combination of A. a corner lock for reinforcing the said intersection between the horizontal and vertical members, said corner lock having a horizontal leg and a vertical leg, 1. the said legs Joining at an angle of 90* to form an angular junction. 2. the said legs each being generally rectangular in cross sectional configuration. a. each said leg being of cross sectional configuration to slidingly fit within the respective horizontal and vertical channels, 3. each leg having a planar outer surface which faces the outer periphery and a planar inner surface which is parallel with the outer surface, 4. each leg terminating endwardly in a resilient extremity having cross sectional configuration which is less than the cross sectional configuration of its associated leg, a. each extremity carrying a locking projection, said locking projection extending peripherally outwardly from the said planar outer surface of its associated leg terminating in a top, and b. the overall height measured perpendicularly from the planar inner surface to the top of the locking projection being greater than the height of the respective associated horizontal and vertical channels, 5. each horizontal and vertical frame member being provided with an opening which receives one said locking projection therein when the corner lock fully seats to reinforce the said intersection, a. the said extremities flexing to allow the projections to insert into the channels when the corner lock is being positioned for use, b. the natural resiliency of the extremities serving to force the projections into the said openings when the corner lock fully seats to lock the corner to the horizontal and vertical frame members; and B. a hanger integrally formed with the corner lock and having two ends, said hanger rising above the planar outer surface of the horizontal leg, 1. said hanger terminating at one end thereof in a surface which lies in the same vertical plane as the outer surface of the vertical leg, 2. said hanger incorporating a pair of horizontally juxtaposed track receiving grooves, and 3. said horizontal leg being provided with an opening to receive a portion of the hanger therein when the corner lock in fully seated in operating position.