Patent ID: 7475579
Filing Date: 2009-01-13
Classification: E05B,E05C,Y10T

Abstract:
1. A lock comprising: a housing having a front open end, a rear open end and a cavity communicating with the front and rear open ends; a movable cylinder rotatably mounted in the cavity in the housing and having a front open end, a rear open end, a central hole defined through the movable cylinder and communicating with the front and rear ends of the movable cylinder, two protrusions extending outward from the front open end of the movable cylinder, a gap defined between the protrusions, a curved recess defined in the rear open end of the movable cylinder, multiple outer tumbler holes defined through the movable cylinder and multiple outer tumblers slidably mounted respectively in the outer tumbler holes; a stationary cylinder mounted in the cavity in the housing adjacent to the rear open end of the movable cylinder and having a limiting slide assembly mounted movably in the rail slot to selectively hold the lock in a locked configuration or an unlocked configuration and having a latch bar being individual from the stationary and movable cylinders, slidably extending through central holes in the movable and stationary cylinders, capable of sliding along the axis of the stationary cylinder and having a front end, a rear end, an enlarged head formed on the front end, an annular groove defined around the latch bar, a spring mounted around the latch bar between the enlarged head and the front open end of the movable cylinder and a fastener mounted to the latch bar to prevent the latch bar from falling out of the housing.