Patent ID: 8414039
Filing Date: 2013-04-09
Classification: E05B,Y10T

Abstract:
1. An automatic sash lock comprising: a housing, said housing having a top surface and a bottom surface and one or more side surfaces extending from said top surface, said housing having a front face at least a portion of which is open to the interior of the housing; a tongue being slidably received by said housing; a first spring, said first spring biasing said tongue to move from a retracted position into an extended position wherein a portion of said tongue extends out from said open area of said front face of the housing; and wherein when said tongue is in said retracted position, said sash lock is in an open configuration, and when said tongue is in said extended position, said sash lock is in a locked configuration; an activator arm, said activator arm being pivotally mounted in said housing; a trigger, said trigger being pivotally mounted in said housing; a second spring, said second spring biasing said trigger to pivot relative to said activator arm to have a portion of said trigger protruding from said housing when said tongue is in said retracted position, said second spring thereby biasing a portion of said activator arm towards said tongue, said portion of said activator arm being configured to engage said tongue and restrain movement of said tongue against said biasing of said first spring when said tongue is moved from said extended position into said retracted position; and wherein said tongue automatically moves from said retracted position to said extended position when said portion of said trigger protruding from said housing is actuated against said biasing of said second spring to cause a portion of said trigger to releasably catch upon said portion of said activator arm and cause said activator arm to pivot and thereby release said engagement with said tongue.