Patent ID: 6257350
Filing Date: 2001-07-10
Classification: E21B

Abstract:
A horizontal directional pipe drill machine, comprising:a) a boom mounted on a frame;b) a pipe drill assembly mounted on said boom and adapted to drill a series of pipe sections into the ground; andc) a stake down assembly connected to the boom;d) said stake down assembly including a base member adapted to rest on the ground, a tower mounted on said base member for rotation about an axis extending perpendicularly from said base member, a cantilevered arm extending radially from said tower, and a stake drive head mounted on said arm in radially displaced relationship from said tower;e) said stake down assembly further including a plurality of stake locator ports formed through said base member in spaced relationship with each other on a segment of a circle whose axis is the axis of rotation of the tower;f) said tower being rotatable on said base to selectively bring said drive head into a position over each of said plurality of stake locator ports;g) said stake down assembly further including a locking device for locking said tower in a selected rotational position.