Woodworking – Special-work machine – Combined
Reexamination Certificate
2006-08-29
2006-08-29
Kovács, Árpád Fábián (Department: 3671)
Woodworking
Special-work machine
Combined
C144S034100, C144S024120, C144S024130
Reexamination Certificate
active
07096900
ABSTRACT:
A tree cutting attachment for a skid loader or other types of self-propelled work vehicles to be used at construction and landscaping sites. The device is used to cut down brush and trees of up to about 12 inches in diameter. The tree cutting attachment is made up of a motor driven rotor assembly which is journaled within a frame of the attachment. The rotor assembly comprises a cage-like mounting system having pockets in which tempered steel blades, approximately ten inches in width are bolted in a side-by-side relation. Two rows of blades are mounted 180 degrees apart proximate the periphery of a rotor comprised of a series of parallel, generally circular plates that are welded to longitudinally extending rods. The knife blade elements are bolted to the blade holders with the non-sharpened end of the blade elements abutting a flat steel bar that forms part of the cage. In a second embodiment, the frame comprises a stationary portion adapted to be rigidly affixed to the hitch of the work vehicle and a movable portion that can be pivoted relative to the stationary portion. Because the movable portion is arranged to pivot about the powered drive shafts, tiling of the movable portion to bring the cutting blade rotor into engagement with a tree to be felled does not alter drive belt tension.
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Kovács Árpád Fábián
Loftness Specialized Equipment, Inc.
Nikolai Thomas J.
Nikolai & Mersereau , P.A.
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