Patent ID: 7057123

Claim:
An interlock assembly for a circuit breaker housing assembly and a circuit breaker extraction device, wherein said circuit breaker housing assembly includes a frame assembly and a plurality of walls forming an enclosure and, disposed within said enclosure, a pair of generally parallel rails structured to support a roll-out circuit breaker, and said circuit breaker extraction device includes a frame assembly structured to be mobile and having a pair of generally parallel rails spaced to align with said circuit breaker housing assembly rails, said circuit breaker extraction device rails each having a distal end, wherein said interlock assembly comprises: at least one first component coupled to said circuit breaker housing assembly and at least one second component coupled to said circuit breaker extraction device; said at least one first component comprising a rail obstruction assembly disposed adjacent to at least one said circuit breaker housing assembly rail, said rail obstruction assembly having a fixed mount coupled to said circuit breaker housing assembly and a movable rail obstruction element movably coupled to said fixed mount, said movable rail obstruction element structured to move between a first position, wherein said movable rail obstruction element blocks a wheel from traveling over said at least one circuit breaker housing assembly rail, and a second position, wherein said movable rail obstruction element is spaced from said at least one circuit breaker housing assembly rail and wherein a circuit breaker wheel may travel over said at least one circuit breaker housing assembly rail; said at least one second component is disposed on a circuit breaker extraction device rail and is structured to engage said at least one first component when said circuit breaker extraction device rails are brought adjacent and parallel to said circuit breaker housing assembly rails and to move said movable rail obstruction element from said first position to said second position.