Patent ID: 7591103

Claim:
A window sash assembly that includes: a window sash having an upper rail and at least one side rail that form a corner of said window sash, a slot in said corner opening laterally outwardly from said corner, said slot being defined in part by opposed linear tracks on said upper rail, and a tilt latch disposed in said slot, said tilt latch including an elongated housing of molded plastic construction having opposed sidewalls and outwardly extending ledges extending outwardly beyond said sidewalls, and having elongated flexible resilient springs extending outwardly from said sidewalls of said housing, said tracks being received between said ledges and said springs, said housing having arcuate openings in said sidewalls, and said springs partially extending into said arcuate openings and being molded integrally with said housing sidewalls at opposed ends of each of said springs, wherein each said spring is continuously curvilinear between said opposed ends.