Patent ID: 7624490

Claim:
In a method of making a fragmenting rotor assembly operable with an anvil surface for comminuting waste wood and other fragmentable material: a. providing a drive shaft and mechanism for driving the shaft in a direction of rotation; b. supporting a plurality of rotor members in axially-spaced relationship along the drive shaft; c. supporting a series of circumferentially-spaced axially extending rods on and extending between the rotor members; d. providing a series of radially projecting hammer supports having respective radially outer hammer heads, the hammer supports being spaced along a rotational axis of the shaft and carried by the rods such that each rod carries a plurality of hammer supports; e. providing fragmenting lives that each have a reducing edge, and that are removably secured to respective ones of the hammer heads such that the reducing edge of each knife is positioned in a radially outer cutting position; and f. supporting a plurality of deflecting members on the rods in axially-spaced positions along the rods such that each rod carries a plurality of deflecting members and such that radially outer ends of the deflecting members are disposed in respective positions to deflect wood fragments away from at least portions of fragmenting knives carried by respective hammer heads.