Mining or in situ disintegration of hard material inventions 01/06

20060017313 - Hydraulically actuated impact apparatus: An impact actuator assembly has a housing having a front, a rear, two opposite sides, a top and a bottom, and defining an actuator receiving area. A hydraulic actuator is fixedly mounted in the actuator receiving area, and provided with an actuator head, at least a portion of which extends...

20060012238 - Power take off: A power takeoff assembly, a drive assembly, a saw and a kit for a saw include a drive plate and drive shaft, for example for mounting to a fly wheel, and a bell housing for mounting to an engine block and for supporting a sheave. The sheave rotates on bearings...

20060012239 - Head for excavator mounted to power shovel: Disclosed is a breaking head mounted to an excavator for removing rocks on or in the ground at construction work. The breaking head includes lateral plates positioned between an upper plate and a lower plate, and a rotary plate connected to a rotary shaft installed to an upper end of...

20060006727 - Tool retainer: A retainer system for a cutting tool that has an elongated shank. In one embodiment, the retainer system includes a tool holder block that has a sleeve-receiving hole therethrough for receiving a sleeve therein. The sleeve may have a shank-receiving hole and at least one undercut portion therein. The retainer...