Patent ID: 9470087
Filing Date: 2016-10-18
CPC Classification: E21B,E21C,E21D

Claim Text:
1. A cutter head for a mining machine, mining machine including a frame and a boom movably coupled to the frame, the cutter head comprising: a first member including a first end and a second end, the first member including a first mass; a cutting bit coupled to the first member proximate the second end, the cutting bit including a cutting edge; and a second member rotatable about an axis and including a second mass eccentrically positioned with respect to the axis, the second mass and the first mass at least partially defining a combined center of mass, rotation of the second mass causing the first member and the cutting bit to oscillate about the combined center of mass, wherein the second member includes a shaft coupled to the second mass for rotation about the axis, the shaft including a first fluid conduit extending through the shaft, and wherein the cutting bit further includes a second fluid conduit in fluid communication with the first fluid conduit, the second fluid conduit extending radially through the cutting bit.