Patent ID: 6434981
Filing Date: 2002-08-20
Classification: E05B,Y10T

Abstract:
A combination lock comprising:a lock housing; a shackle; a rotatable dial on the surface of said housing; a combination assembly within said housing and in communication with said rotatable dial, wherein the combination assembly comprises a plurality of combination disks having windows that can be rotatably aligned to open the lock; a combination upset disk within said housing and in communication with said rotatable dial, wherein said combination upset disk comprises: a window that can be rotatably aligned with the windows of said plurality of combination disks to open the lock, and a tang extending from said combination upset disk; a pushbutton extending out of said housing that opens the lock when it is depressed, wherein said pushbutton comprises: a stop member that contacts said tang to position the window of the combination upset disk before the pushbutton is depressed, and means for rotating the window of the combination upset disk out of alignment after the pushbutton is depressed so that the combination must be reentered in order to open the lock.