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US 7,441,571 B2Granted
Conical chipper/canter head
AssigneeKey Knife, Inc.
InventorsBradley R. Stager, Jianmin Liao
Life of this patent
Estimating the term…
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AssigneeKey Knife, Inc.
InventorsBradley R. Stager, Jianmin Liao
Estimating the term…
A conical chipper/canter head. The head includes, at least, one or more chipping knives. Each chipping knife provides at least one pair of linear cutting edges including a face cutting edge and a chip cutting edge angled with respect to each other. The face cutting edge defines a planar, face cutting surface of revolution of the cutting head, and the chip cutting edge defines a conical, chip cutting surface of revolution of the cutting head. The face and chip cutting edges of the same chipping knife lie in substantially the same plane. A cutting head may include a plurality of facing knives and corresponding clamping members in addition to one or more chipping knives. The facing knives and corresponding clamping members are adapted so that each of the facing knives is removable from the cutting head without removing any other facing knives.
A cutting head adapted for rotation about an axis, comprising one or more elongate chipping knives mounted to the cutting head, each said chipping knife having an elongate axis, a face cutting edge and a chip cutting edge, said face cutting edge being oriented so as to cut a planar surface as the cutting head rotates about said axis, and said chip cutting edge being oriented so as to cut a conical surface as the cutting head rotates about said axis, said face and chip cutting edges lying in substantially the same plane parallel to the associated elongate axis.
Dependencies are inferred from the claim text.