Patent ID: 8870244

Claim:
An automatically re-locking sash lock, said sash lock comprising: a housing; a latch member, said latch member being slidable within said housing, between a locked position where a portion of a first end of said latch member protrudes from a portion of said housing, and an unlocked position where said protruding portion of said first end of said latch member is retracted into said housing; a biasing means, said biasing means configured to bias said latch member toward said locked position; an activator arm, said activator arm being pivotally mounted within said housing; a trigger member; said trigger member being pivotally mounted within said housing, said trigger member comprising a first arm and a second arm; a torsion spring, said torsion spring configured to bias said trigger member relative to said activator arm, said relative biasing configured to cause said activator arm to rotate and contact a first portion of said latch member, to releasably secure said latch member in said unlocked position; and said relative biasing configured to cause said trigger member to rotate, to drive a portion of said second arm to protrude out from said housing; and said protruding portion of said second arm of said trigger member comprising an angled surface configured to be actuated to cause said trigger member to counter-rotate, to cause said first arm of said trigger member to releasably engage said activator arm to thereby drive said activator arm to counter-rotate and disengage from said first portion of said latch member, for said biasing means to automatically bias said latch member into said locked position.