Patents by Inventor Donald E. Bobbitt

Donald E. Bobbitt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20030115826
    Abstract: A light fixture foundation that has a hollow shaft with a tubular wall that extends along a central longitudinal axis, and a first cableway opening that extends through the tubular wall along a first axis that is substantially perpendicular to the longitudinal axis. A second cableway opening extends through the tubular wall along a second axis that is substantially perpendicular to the longitudinal axis. The second axis is laterally spaced from the first axis such that the first and second axes and the first and second openings are non-coaxial. A support member for supporting a lighting assembly is coupled to the shaft. The support member has a passageway in communication with the hollow shaft for receiving first and second cableways.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 26, 2003
    Inventor: Donald E. Bobbitt
  • Patent number: 4499698
    Abstract: A recoverable earth-retaining wall anchoring device and method is disclosed which allows the erection of a retaining wall in a quick, inexpensive manner and permits proof-load testing of the anchor during or immediately after installation, resulting in significant time and cost savings. The device includes a screw anchor having a central, elongated shaft with one or more outwardly extending helical blades affixed thereto, and an earth-penetrating lead point at one end. An adapter is attached to the anchor shaft and includes an opposed, threaded bore which receives an elongated threaded rod; a polygonal in cross-section engagement area is also provided between the opposed ends of the adapter. A wrench, having one or more releasably interconnected, tubular, polygonally-shaped shank sections is telescoped over the rod and operably and drivingly engages the adapter engagement area such that axial rotation of the wrench effects corresponding rotation of the anchor for installation and removal purposes.
    Type: Grant
    Filed: January 31, 1983
    Date of Patent: February 19, 1985
    Assignee: A. B. Chance Company
    Inventors: Robert M. Hoyt, Donald E. Bobbitt, Gary E. Bartee, Stanley C. Garton, J. Paul Pilliard
  • Patent number: 4339899
    Abstract: A connector assembly and method are disclosed for supporting each of the legs of a free standing tower or the like using a screw anchor driven into the ground at the base of a respective tower leg. In order to compensate for irregularities in alignment between the upper end of each screw anchor and a corresponding tower leg, the connector units are initially mounted on the screw anchors in a manner permitting individual axial, angular and longitudinal adjustment as may be necessary to bring each connector unit into proper alignment with a tower leg thereabove. The connector units while being held in such aligned disposition may be precisely affixed to a corresponding screw anchor and the proximal tower leg using the connector unit itself as a guide for such interconnection.
    Type: Grant
    Filed: October 28, 1980
    Date of Patent: July 20, 1982
    Assignee: A. B. Chance Company
    Inventors: William A. Klenk, Albert B. Atkinson, Donald E. Bobbitt
  • Patent number: 4068445
    Abstract: A lightweight, easily installable, anchored foundation for electrical equipment or the like is provided which includes a foam-filled, force-transmitting frusto-conical housing tensionably connected to a plurality of adjacent, buried earth anchors having remote load-bearing helices thereon in order to create a prestressed bulb of relatively compacted soil between the housing base and anchor helices which greatly enhances the holding power of the foundation under both tension and compression loads. In preferred forms the foundation exhibits approximately the same support strength as poured concrete, but can be more quickly installed and employed at remote locations or on loose soil which would normally preclude the use of concrete.
    Type: Grant
    Filed: February 23, 1976
    Date of Patent: January 17, 1978
    Assignee: A. B. Chance Company
    Inventor: Donald E. Bobbitt