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US 10,465,513 B2Granted
Tapered cutter bit and mounting block for the same
OwnerWinchester E. Lathaminventor
Life of this patent
Estimating the term…
Abstract
A cutter bit adapted to be fixed onto a working surface of a rotating drum of a milling, planing, mining or reclaiming machine is provided. The body of the cutter bit is generally formed of a hardened steel, the cutting surface may be a diamond composition fixed in a step in the upper end of the cutter bit. The cutter bit includes a cutting surface, and the cutting surface may include non-parallel side edges and an upper cutting edge parallel to a lower edge. The lower edge may be any length sufficient to inhibit unintended angular displacement of the cutting surface during operation of the working surface. Alternatively or in addition, the cutting surface may be defined by three edges to allow the cutting surface to be removed and repositioned in at least a second orientation.
Claims20
A cutter bit, comprising:
- an elongated body including a front surface, the elongated body adapted to be fixed onto a working surface of a rotating drum of a milling, planing, mining or reclaiming machine, the elongated body including an upper end;
- a cutter element fixed to the front surface, the cutter element comprising polycrystalline diamond and including a front face positioned to face away from the front surface of the elongated body, the front face comprising:
- an upper cutting edge forming a first linear peripheral edge of the front face;
- a lower edge forming a second linear peripheral edge of the front face, wherein the lower edge is opposite the upper cutting edge;
- a first side edge forming a third peripheral edge of the front face, the third peripheral edge being a first radial edge;
- and
- a second side edge forming a fourth peripheral edge of the front face, the fourth peripheral edge being a second radial edge concentrically disposed on the cutter element opposite the first radial edge, the upper cutting edge linearly extending to include a first end intersecting and terminating the first radial edge and a second end intersecting and terminating the second radial edge;
- wherein the upper cutting edge is parallel to the lower edge, the upper cutting edge is aligned with an upper end of the elongated body, the first radial edge and the second radial edge extend from the lower edge of the cutter element to the upper cutting edge, the first side edge is non-parallel to the second side edge, the upper cutting edge linearly extends from the first side edge to the second side edge and the lower edge linearly extends from the first side edge to the second side edge;
- and
- a wear resistant element fixed to the front surface of the elongated body.
7 more elements
A cutter bit, comprising:
- an elongated body including a front surface, the elongated body adapted to be fixed onto a working surface of a rotating drum of a milling, planing, mining or reclaiming machine, the elongated body including an upper end;
- a partition formed in the front surface of the elongated body, the partition including an alignment surface positioned in a plane parallel to a cutting plane;
- a cutter element independently fixed to the front surface, the cutter element including a front face comprising an upper cutting edge forming a first peripheral edge of the front face, a lower edge forming a second peripheral edge of the front face, a first side edge forming a third peripheral edge of the front face, and a second side edge forming a fourth peripheral edge of the front face, wherein the upper cutting edge is parallel to the lower edge, the upper cutting edge is aligned with the working surface, the first side edge and the second side edge continuously extend from the lower edge of the cutter element to the upper cutting edge, the first side edge and the second side edge tapered away from each other and extending from the lower edge to the upper cutting edge such that the upper cutting edge is at a widest point of the cutter element, the upper cutting edge linearly extends from the first side edge to the second side edge and the lower edge linearly extends from the first side edge to the second side edge, and the first side edge contacts the alignment surface of the partition at a first point, the second side edge contacts the alignment surface of the partition at a second point such that the lower edge contiguously contacts and extends between the first point and the second point along the alignment surface to position the cutter element on the front surface in a predetermined position such that the upper cutting edge is in the cutting plane;
- and
- a wear resistant element fixed to the front surface of the elongated body.
2 more elements
Dependencies are inferred from the claim text.