Patent ID: 8186287

Claim:
A disc hub assembly for a disc opener apparatus having a coulter, comprising: a spindle having a first end and a second end; a frame receiving the spindle therethrough, the frame including at least one notch formed therein; a depth adjustment arm having an inner end coupled to the first end of the spindle, an outer end and being adapted to be selectively positioned at one of a number of depth setting positions, wherein rotation of the depth adjustment arm causes rotation of the spindle; a gauge wheel arm coupled to the second end of the spindle and configured to rotate with rotation of the spindle, the gauge wheel arm having a first end coupled to the second end of the spindle and further having a second end; a gauge wheel spindle coupled to the second end of the gauge wheel arm and adapted to be received by a depth setting gauge wheel such that rotation of the spindle causes either a lowering or a raising of the depth setting gauge wheel relative to the coulter; a handle having at least one tooth projecting therefrom and being operatively connected to the outer end of the depth adjustment arm, the handle being moveable between a first position wherein the tooth is disengaged from the at least one notch in the frame such at the depth adjustment arm is free to be selectively positioned at one of a number of depth setting positions and a second position wherein the at least one tooth is selectively received in the at least one notch formed in the frame to maintain the depth adjustment arm at a selected depth setting position.