Patent ID: 7621504

Claim:
A cribbing apparatus for stabilizing a post-accident vehicle against unwanted shifting during extrication of a victim trapped in the vehicle, the cribbing apparatus comprising: a cribbing block having a forward end, a rearward end spaced longitudinally from said forward end, a stair-stepped upper surface, a lower surface space attitudinally from said upper surface, a first side, a second side spaced laterally from said first side, and a longitudinal slot extending through said upper surface between said forward end and said rearward end and centrally between said first and said second sides, said stair-stepped upper surface of said cribbing block providing plurality of horizontal shelves increasing in elevation in a direction from said forward end to said rearward end; a vertically movable center block portion having a stair-stepped upper surface, said vertically movable center block portion is located within said longitudinal slot and being configured to move vertically within said longitudinal slot such that said vertically movable center block portion is positionable between a lowered position where said upper surface thereof is flush with said upper surface of said cribbing block and a raised position where said upper surface thereof is elevated above said upper surface of said cribbing block; and a means for vertically moving said vertically movable center block portion is connected to said cribbing block and said vertically movable center block portion, and is operable to vertically move said vertically movable center block portion.