Patent ID: 9186813
Filing Date: 2015-11-17
Classification: B28B,B28C,E04C

Abstract:
1. A casting machine for fabrication of precast concrete structural members, comprising: side walls which are pivotally movable from an open position to a closed position; end dams which are pivotally movable from an open position to a closed position; a bottom casting surface, which includes pivotable bottom surfaces which rotate on bottom surface pivots to a vertical position and to a horizontal position, said bottom casting surface, said side walls, said pivotable bottom surfaces and said end dams serving to form a self-releasing mold surrounding a cavity when said side walls and said end dams are in said closed position, and said pivotable bottom surfaces are pivoted to said horizontal position, said self-releasing mold being configured to contain wet concrete which is poured into said cavity; said side walls, and said end dams being automatically movable to said open position and said pivotable bottom surfaces pivoted to said vertical position when said concrete has solidified so that a precast concrete structural member is automatically released from said self-releasing mold, and a removable bottom core which completely supports a precast concrete structural member from within when said side walls and said end dams are moved to said open position.