Patent ID: 8172731
Filing Date: 2012-05-08
Classification: A63B

Abstract:
1. A gridiron power machine system comprising: a support assembly having laterally spaced horizontal base rails and laterally spaced vertical rails extending upwardly from the base rails; pivot rails, the pivot rails having interior ends and exterior ends, the interior ends pivotally coupled with respect to the vertical rails; a grasping bar coupled to the pivot rails adjacent to the exterior ends; a plate coupled to the pivot rails adjacent to the interior ends, the plate being formed with recesses for receiving and supporting attachments; and pivotable locking rails having upper and lower ends, front pivot pins coupling the lower ends of the pivotable locking rails to the support assembly, each locking rail having a plurality of L-shaped fingers adapted to retain the grasping bar at a preselected elevation, thus allowing when the grasping bar is lifted the L-shaped fingers to automatically fall back out of the way, making the locking rails, the front pivot pins, the support assembly, the L-shaped fingers and the grasping bar an automatic un-racking system A.U.S.