Patent ID: 6814320
Filing Date: 2004-11-09
Classification: A01G,B02C

Abstract:
A reversing automatic feed wheel assembly for a wood chipper comprising:an infeed assembly; a rotatable cutting assembly spaced from said infeed assembly; at least one feed wheel disposed between said infeed assembly and said cutting assembly to feed wood material to said cutting assembly; and a control system operatively connected to said at least one feed wheel including a reversing auto feed block, a reversing valve connected to said auto feed block, and an electronic controller connected to said reversing valve to automatically actuate said reversing valve and including a fluid pressure sensor to sense fluid pressure to said at least one feed wheel, said electronic controller receiving an input signal from said sensor of the fluid pressure reaching a first predetermined level as a result of an excessive load placed on either one of said cutting assembly and said at least one feed wheel and activating said reversing valve thereby causing said reversing auto feed block to reverse the fluid path to said at least one feed wheel to automatically stop and reverse said at least one feed wheel and receiving another input signal from said sensor of the fluid pressure reaching a second predetermined level that is less than the first predetermined level and activating said reversing valve thereby causing said reversing auto feed block to reverse the fluid path to said at least one feed wheel to automatically restart said at least one feed wheel.