Patent ID: 6748773
Filing Date: 2004-06-15
Classification: E05B,Y10S,Y10T

Abstract:
A lock including:a lock tongue member movable between an extended striker engaging position and a retracted position; an actuator on a first side of said lock and which is manipulated by a user to move the tongue member from the extended position to the retracted position; a lock mechanism operatively associated with said actuator and being arrangable in a first configuration and a second configuration, said mechanism wherein said first configuration permitting operation of said actuator to move the tongue member from the extended position to the retracted position, while wherein said second configuration rendering said actuator ineffective in respect of moving said tongue member from said extended position to said retracted position; a first key operable lock cylinder, said first cylinder being on said first lock side and operatively associated with said lock mechanism; a second key operable lock cylinder, said second cylinder being on a second side of said lock and operatively associated with said lock mechanism; and wherein said lock mechanism is responsive to operation of said first cylinder by a user to be arranged in said first configuration but not said second configuration, while being responsive to operation of said second cylinder by a user to be arranged by choice of said user in said first configuration or said second configuration.