Patent Number: 6,305,623

Title: Rotary grinder with improved ram and screen

Abstract: The present invention relates to a rotary grinder with an improved ram and screen. Rotary grinders of the present invention are, for example, used to grind plastic or wood to reduce the size of the material to a desired size. Material to be ground is placed inside a hopper and a ram is used to force the material toward the rotor having a plurality of cutters thereon. The ram does not have to ride in horizontal channels on the sides of the hopper so material does not interfere with or jam the ram. Further, a grooved screen may be employed wherein the screen has a plurality of V-shaped grooves therein in which the cutters travel. This permits the cutters to "clean" the screen so that ground material, for example, plastic, does not block the openings in the screen.

Inventors: Sotsky; George R. (Louisville, KY), King; Kenneth W. (Louisville, KY)

Assignee: Republic Welding Company

International Classification: B02C 18/06 (20060101); B02C 18/14 (20060101); B02C 18/22 (20060101); B02C 018/08 ()

Expiration Date: 10/23/2018