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US 11,298,761 B2Granted
Adzer bit with cutting segments
AssigneeGood Earth Tools, Inc.
InventorsDaryl A. Pfaff, Raymond W. Burns
Life of this patent
Estimating the term…
Abstract
An adzer bit includes a support member that defines a through hole that is configured to receive a fastener. The support member includes a cap portion and a base portion. The support member also defines an annular slot that is axially disposed between the cutting segment cap portion and the base portion. A plurality of cutting segments are received and secured in the annular slot. The material of the plurality of cutting segments is harder than the material of the support member.
Claims20
An adzer bit, comprising:
- a support member comprising a base portion and a cap portion, the cap portion formed of a first material;
- and
- a plurality of cutting segments axially disposed between the base portion and the cap portion and formed of a second material, the second material being harder than the first material, wherein each cutting segment comprises a leading surface, an outer arcuate surface, and a cutting edge disposed at a junction of the leading surface and the outer arcuate surface;
- and
- wherein each cutting segment is defined by the outer arcuate surface, an inner arcuate surface, and a plurality of opposed end surfaces, an end surface of a first cutting segment being disposed adjacent an end surface of a second cutting segment;
- wherein the base portion and the cap portion define a through hole configured to receive a fastener to couple the adzer bit to an adzer head.
3 more elements
A method for forming an adzer bit, comprising:
- securing a plurality of cutting segments to a support member comprising a cutting segment cap portion and a base portion, the plurality of cutting segments being secured axially between the cutting segment cap portion and the base portion, each of the plurality of cutting segments defining a leading surface, an outer arcuate surface, and a cutting edge disposed at a junction of the leading surface and the outer arcuate surface, the cutting edge extending radially beyond a periphery of the cutting segment cap portion, an end of a first cutting segment disposed adjacent an end of a second cutting segment, and the support member comprising a first material and the plurality of cutting segments comprising a second material, the second material being harder than the first material, wherein the base portion and the cutting segment cap portion define a through hole configured to receive a fastener to couple the adzer bit to an adzer head.
An adzer bit, comprising:
- a support member comprising a base portion and a cap portion, the cap portion formed of a first material;
- and
- a plurality of cutting segments axially disposed between the base portion and the cap portion and forming an annulus, the plurality of cutting segments formed of a second material, the second material being harder than the first material, wherein each cutting segment comprises a leading surface, an outer arcuate surface, and a cutting edge disposed at a junction of the leading surface and the outer arcuate surface;
- a brazing material securing the plurality of cutting segments between the base portion and the cap portion;
- and
- wherein each cutting segment is defined by the outer arcuate surface, an inner arcuate surface, and a plurality of opposed end surfaces, an end surface of a first cutting segment being disposed adjacent an end surface of a second cutting segment;
- wherein the base portion and the cap portion define a through hole configured to receive a fastener to couple the adzer bit to an adzer head.
4 more elements
Dependencies are inferred from the claim text.