US 7,591,103 B2
Window sash tilt latch
John Tremble, Redmond, Wash. (US); John Falcon, Langley (Canada); and Kai Zhang, Langley (Canada)
Assigned to Milgrad Manufacturing, Inc., Tacoma, Wash. (US)
Filed on Dec. 15, 2005, as Appl. No. 11/300,882.
Prior Publication US 2007/0137109 A1, Jun. 21, 2007
Int. Cl. E05D 15/22 (2006.01)
U.S. Cl. 49—185  [49/183; 49/445; 292/DIG. 47] 6 Claims
OG exemplary drawing
 
5. A tilt latch for receipt in a window sash frame having a laterally opening slot with parallel tracks and an edge, said tilt latch including:
a rectangular housing having opposed sidewalls and a top panel, said top panel having ledges extending outwardly beyond said sidewalls,
a plurality of longitudinally spaced upwardly convex arcuate openings in each of said sidewalls, and
an elongated flexible resilient springs extending outwardly from said sidewalls of said housing,
each of said springs having spaced ends integrally molded with a respective one of said sidewalls of said housing and a mid portion disposed within a respective one of said arcuate openings, each of said springs being continuously curvilinear between said spaced ends.