Patent ID: 7373960

Claim:
An apparatus for a boom on a mobile machine where the mobile machine provides controlled power to the apparatus, said apparatus adapted to cut materials including brush and limbs or the like into smaller pieces to be deposited substantially directly beneath the apparatus, said apparatus comprising: an articulating boom with a terminal end supported by the machine; a housing coupled to said boom with an exterior and an interior and with an entry gate and an exit chute; a feed assembly with an arcuately mobile spring biased upper feed roller and a vertically spaced apart stationary lower feed roller adapted to rotate in opposite directions, each of said feed rollers comprising spaced apart ends operatively secured to said housing exterior proximate said gate and each having a plurality of peripherally protruding cleats and each mounting a hydraulic motor adapted to selectively rotate said roller to feed material through said gate; and, a rotary drum having spaced apart ends bounding a periphery with a cutting chain wound around said periphery between said ends and coupled to said drum at said ends, said drum rotatably coupled to the interior of said housing proximate said gate with a hydraulic motor adapted to rotate said drum to cut materials entering said gate into small pieces that are discharged through said chute to be deposited substantially directly beneath said housing.