Patent ID: 8505838
Filing Date: 2013-08-13
Classification: B05B,E01C,Y10T

Abstract:
1. A material spreader comprising: a frame comprising a surface that is attachable to an associated vehicle; an auger that is rotatably supported to the frame and used to transfer an associated granular material from the associated vehicle to an associated ground surface; a first door that is movable with respect to the frame between: (1) a first closed position where the first door covers at least a portion of the auger; and, (2) a second open position where the first door does not cover the at least a portion of the auger; an electric power supply supported to the frame; an electric supply line that supplies electric power from the electric power supply to the auger to operate the auger; and, an electric interlock mechanism comprising: a second door that is pivotal with respect to the frame between: (1) a first closed position where the second door covers at least a portion of the auger; and, (2) a second open position where the second door does not cover the at least a portion of the auger; wherein: (1) when the electric interlock mechanism is in the first condition the second door cannot be moved into the second open position; and, (2) when the electric interlock mechanism is in the second condition the second door can be moved into the second open position; wherein the first door is pivotal with respect to the frame between the first closed position and the second open position; and wherein the first door comprises a stop member that prevents the second door from being opened unless the first door is first opened.