Patent ID: 6718693
Filing Date: 2004-04-13
Classification: E05B,E05D,E05Y

Abstract:
A window assembly including a pair of mutually opposed jamb liners and a sash positionable between the jamb liners with opposite sides of the sash slidably engaged with the jamb liners, said window assembly comprising:a latch member having a body with a protruding jamb-engagement portion and a mounting portion spaced from said jamb-engagement portion; said body having a size and shape to be operably mounted upon said sash in a position generally orthogonal with respect to and generally adjacent to at least one of said opposed jamb liners, and said mounting portion defining a pivot mount by which said jamb-engagement portion may be pivoted toward and away from said one generally adjacent jamb liner; said protruding jamb-engagement portion having a size and shape to interfit with and retentively index behind a surface portion of said jamb liner when pivoted toward it, to thereby prevent unintended movement of the sash laterally away from the jamb liner in the vicinity of the interlock device; said pivot mount providing for pivotal movement of said jamb-engagement portion away from said jamb liner to free said sash for disengagement from said jamb liner and thereby enable angular tilting movement of the sash with respect to said jamb liner; and wherein: said sash defines vertical opposed side faces, and said jamb liners include, in cross-section, first and second angularly disposed surfaces extending generally towards the sash and towards one another to define a vertically elongated raised guide portion positioned between said side faces, said opposite sides of said sash including at least one surface configured to slidably engage at least a selected one of said first and second angularly disposed surfaces to permit vertical sliding of said sash along said raised guide portion.