Abstract: A coupler for a helical pile system is described. The coupler includes at least two sections of square tube. A first section is nested within and affixed to the second section. The first section may further include an inner width by which the first section is configured to receive two pieces of rectangular bar stocks of a helical pile system. The at least two sections each include at least two pairs of aligned through holes, for receiving first and second bolts. By the first bolt and second bolts, the two pieces of rectangular bar stock may be coupled. The first section may thus transfer torsion between the two pieces of rectangular bar stock, such as when screwing the helical pile system into the earth.

Abstract: A coupler for a helical pile system is described. The coupler includes at least two sections of square tube. A first section is nested within and affixed to the second section. The first section may further include an inner width by which the first section is configured to receive two pieces of rectangular bar stocks of a helical pile system. The at least two sections each include at least two pairs of aligned through holes, for receiving first and second bolts. By the first bolt and second bolts, the two pieces of rectangular bar stock may be coupled. The first section may thus transfer torsion between the two pieces of rectangular bar stock, such as when screwing the helical pile system into the earth. The second section of square tube may further improve the torsional capacity of the coupler.

Abstract: A helical pier with a spiral tip is disclosed. The helical pier is comprised of an elongated hollow shaft, one or more helical plates attached to and extending outward from the shaft, and the spiral tip. The spiral tip acts as an attack bit that contacts and penetrates the ground and subsurface soil layers prior to other parts of the helical pier. The spiral tip provides initial breakup of the ground where the helical pier is being driven. The spiral tip is comprised of a longitudinal edge and a spiral rim between a penetrating lead end and a terminating spiral end on the longitudinal edge.