US Patent 10890027 Corner key composite member

A corner key for a window assembly may be composed of a first body portion having an inner edge, and a second body portion having an inner edge in which a gap is formed between the inner edges of the first and second body portions. The key may include a channel disposed within the gap and a port in fluid communication with the channel. The first body portion may have a first adhesive bonding area in fluid communication with the channel and the second body portion may have a second adhesive bonding area in fluid communication with the channel. The corner key may be inserted into a first and a second window element. An adhesive material may be inserted through the port to spread through the channel to the first and second adhesive bonding areas inserted into the window elements, thereby forming an adhesive bond therewith.