Patent ID: 9394787
Filing Date: 2016-07-19
CPC Classification: E21C

Claim Text:
1. A cutter bit and mounting block adapted to be fixed onto a working surface of a milling, planing, mining or reclaiming machine, the mounting block comprising: a first side wall, a second side wall, and a top surface, the first and second side walls being parallel to one another and perpendicular to the top surface; a slot formed within the first side wall and extending through the top surface, the slot being rectangular and including first and second slot side walls, and a rear slot wall, the first and second slot side walls being parallel to one another and perpendicular to the rear slot wall, and the rear slot wall oriented at any angle relative to the first and second side walls of the mounting block; at least one pocket formed within one of the first and second side walls to intercept the slot, and a retainer positioned within each pocket, each retainer including a planar laterally tapered surface; the cutter bit comprising an elongated body dimensioned to be removably mounted within the slot, the cutter bit having an upper end including a cutting surface, a lower end including a surface having a portion engaged by the laterally tapered surface of each retainer to secure the cutter bit within the slot, and a wear resistant element replaceably mounted to the front surface immediately below the cutting surface and above the top surface of the mounting block.