Device for treatment of the surface of round timber
OwnerKarl-Erik A. Jonssoninventor
Life of this patent
Estimating the term…
Abstract
A cutting tool assembly for the surface treatment of round timber including an arm having at one end thereof a recess portion at least a portion of which is shaped substantially as a partial regular pyramid, a cutting tool shaped substantially as a regular pyramidal funnel adapted for engagement with and disposed in the recess and fastening means for removably securing the cutting tool in the recess.
Claims23
A cutting tool assembly comprising:
- (a) an arm having at the free end thereof a recess portion having a substantially pyramidal shape;
- (b) a cutting tool having a plurality of cutting edges and containing inner and outer major surfaces which substantially are disposed in and at least partially substantially correspond to said recessed portion;
- and
- (c) fastening means for securing said cutting tool to said recessed portion of said arm.
A cutting tool assembly comprising:
- (a) an arm having at the free end thereof a recess portion at least a portion of which is shaped substantially as a partial regular pyramid;
- (b) a cutting tool having a plurality of cutting edges defining a regular polygon, said cutting tool having an outer major surface which substantially corresponds to said recess portion and an inner major surface defining a cavity, the walls of which at least in the cutting edge area thereof defining a partial regular pyramid, said outer and inner surfaces being substantially contained in said recess;
- and
- (c) fastening means for securing said tool in said recess portion.
A cutting tool assembly comprising:
- (a) an arm having at one end thereof a recess portion, at least a portion of which is shaped substantially as a partial regular pyramid;
- (b) a cutting tool shaped substantially as a regular pyramidal funnel, said pyramidal funnel having a base and a plurality of pyramid faces, said tool having a plurality of cutting edges defining a regular polygon corresponding to the base of said pyramid, an outer major surface substantially corresponding to said pyramid faces and adapted for engagement with said recess and an inner major surface defining a cavity, the walls of which, at least in the cutting edge area thereof, corresponding to said pyramid faces;
- and
- (c) fastening means for securing said tool in said recess.
A cutting tool for the surface treatment of round timber, said tool being shaped at least partially substantially as a regular pyramidal funnel, said pyramidal funnel having a base and a plurality of pyramidal faces comprising:
- (a) a plurality of cutting edges shaped as a regular polygon corresponding to the base of said regular pyramid;
- (b) an outer major surface substantially corresponding to said pyramid faces;
- and
- (c) an inner major surface defining a cavity, the walls of which at least in the cutting edge area thereof corresponding to said pyramid faces.
A cutting tool assembly comprises a detachable tool and an arm adapted to carry said tool, said tool having a plurality of cutting edges defining a regular polygon and an outer shape having at least a portion thereof substantially defining a regular pyramid, and said arm having a recess at least substantially shaped as a regular pyramid base adapted to receive therein the pyramidal portion of said tool, said arm containing a bore disposed along the axis of said regular pyramid, said tool having a recess the walls of which at least in the cutting edge area thereof defining a partial regular pyramid, said outer pyramidal shape and said tool recess having a common pyramid axis, fastening means extending into said bore in said arm, said fastening means being releasably secured to said arm such that said tool is rotatable about said axis in a released condition of said fastening means.
Dependencies are inferred from the claim text.