Patent ID: 7494299
Filing Date: 2009-02-24
Classification: E02D

Abstract:
1. A multi-section pile apparatus, comprising: a. a lowermost anchor that is configured to be driven into a soil mass by rotation, the anchor having a solid shaft and a helically threaded vane portion attached thereto; b. a plurality of pile sections that are connectable end-to-end at non-annular joint portions, the pile sections and joint portions having hollow bores, a lowermost of the pile sections being connectable to a top of the anchor, wherein the pile sections have end portions that are shaped to fit a squared end portion of another pile section in telescoping fashion and wherein each of the pile sections carries a plurality of circumferentially spaced radially extending soil displacement ribs; c. a rotary drive means for transmitting rotational force to the pile sections and the anchor, said drive means comprising drive members that fit is inside end portions of the pile sections; and d. wherein the joint portions are configured with non-annular surfaces that enable torque to be transmitted from the rotary drive to the pile sections.