Patent ID: 8387425

Claim:
A key device for use with a first lock and a second lock, said key device comprising: a shaft portion; and at least one movable key combination element retained within said shaft portion and comprising first and second portions adjacent one another, the first portion of said at least one movable key combination element being located along said shaft portion and the second portion of said at least one movable key combination element being located offset to said first portion, said at least one movable key combination element being displaceable with respect to said shaft portion; wherein the first lock comprises: a rotatable plug having a keyway; a pressing element in said rotatable plug arranged to press against said second portion of said at least one movable key combination element thereby to move an auxiliary locking element disposed in said first lock to a shear line to permit rotation of said plug; and wherein the second lock comprises: a rotatable plug having a keyway; and a pressing element in said rotatable plug arranged to press against said second portion of said at least one movable key combination element thereby to move an auxiliary locking element disposed in said second lock to a shear line to permit rotation of said plug, wherein the pressing elements of the first and second locks press against two different locations offset from each other on said second portion of said at least one movable key combination element.