Patent ID: 7828025

Claim:
Apparatus for minimizing the amount of debris that is distributed in and around a disc type wood chipper during the period the chipper is undergoing a cleaning procedure for removal of debris, wherein said apparatus includes: a casing for substantially enclosing a disc and having a chip discharge chute located in the bottom of said casing; said casing further including a stationary section and a removable section that is detachably connected to said stationary section to provide an access region for exposing a front face portion and back face portion of said disc when said removable section is detached; an auxiliary shield enclosing the back face portion and outer rim of said disc as situated within the access region; support means for movably supporting said auxiliary shield upon the back of said stationary section of said casing so that said auxiliary shield can move between: a first stored position against the back of said removable section of said casing when said removable section is attached to said stationary section of said casing; a second open position when said removable section is detached from said stationary section of said casing to provide full access to the exposed portions of said disc in the access region; and a third closed position when said removable section is detached from said stationary section of said casing wherein said shield encloses the back face and the outer rim of the disc that is exposed in the access region whereby debris removed from the disc is directed by said shield into the chip discharge chute of said chipper.