Patent ID: 7446270

Claim:
An interlock assembly comprising: an interlock plate comprising at least one slot disposed about a central portion thereof, a first locking tab disposed perpendicular to a first side of said interlock plate, and a second locking tab disposed perpendicular to a second side of said interlock plate; and a base disposed adjacent to a bottom surface of said interlock plate, said base comprising at least one perturbation disposed on a surface of said base opposite to said bottom surface of said interlock plate, such that said at least one perturbation is disposed within said at least one slot of said interlock plate, thereby providing said interlock plate with reciprocating movement in relation to said base, wherein said first locking tab comprises an elongated portion and a first end disposed parallel to and facing toward said interlock plate, and said second locking tab comprises an elongated portion and a second stop disposed parallel to and facing away from said interlock plate, wherein said first and second stops are facing in a same direction as one another.