Patent attributes
A support post structure comprising an elongated impact drive tube having a longitudinally extending bore open at a distal end of the tube, an elongated stake member having a guide section slidably mounted within the bore and further having a ground penetrating elongated head section extending longitudinally outward from the distal end of the drive tube, wherein the head section in cross-section has a channel configuration with a web base and parallel upstanding side walls, the head section has a driven lateral shoulder adapted for being downwardly impacted by the distal end of the tube on the down stroke of the tube, and wherein the head section is wedge shaped with the point of the wedge on the distal end of the web base and with the lateral driven shoulder on upper portions of the channel sides at a proximal end of the head section.