Patent ID: 9566702
Date: 2017-02-14
CPC Classifications: B25D,E02D,E21B,Y10T

Claim:
1. A hydraulic rotator converter for attachment to a hydraulic impact hammer having a hammer housing and a hydraulic piston comprising: mounting brackets configured to attach to the hammer housing; a rotator housing having a cavity formed therein; posts attached to the rotator housing at a first end of each post, each post having a second end for removable connection to one of the mounting brackets; a hydraulic rotator assembly mounted in the cavity of the rotator housing, the assembly including a hydraulic rotator, a rotator wheel with a central opening, the rotator wheel driven by the hydraulic rotator, and a rotator plate connected to the rotator wheel, the rotator plate having a central cutout region formed therein; and a drill bit having a drilling end and a second end, the second end positioned in the hammer housing so as to be contacted by the hydraulic piston, the drill bit dimensioned to pass through the central cutout region of the rotator plate and the central opening of the rotator wheel and wherein the drill bit comprises a cutout region arranged to engage with the central cutout region of the rotator plate so as to be rotatable by the rotator wheel while allowing the hydraulic piston to generate pounding action on the drill bit.