Patent 7032939 was granted and assigned to Southco on April, 2006 by the United States Patent and Trademark Office.
A lock has a lock casing and a spring-loaded trigger guided for reciprocating movement within the housing. A hook-like bolt is arranged within the housing to be movable between an unengaged position and an engagement position. In a first position, as support surface of the spring-loaded trigger retains the bolt in its unengaged position. In a second position the spring-loaded trigger releases the bolt for movement towards its engagement position.