Patents by Inventor Louis F. Fairchild

Louis F. Fairchild 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).

  • Steering and width controls for expandable tandem rollers
    Patent number: 4109742
    Abstract: An hydraulic system controlling the steering and width of an articulated expandable tandem roller turns both rolls at the same time in opposite directions when the machine is being steered or in the same direction when being expanded or contracted. An operator controlled electrical system, also governing travel of the machine in either opposite direction, controls steering and width adjustment and automatically reverses the "hand" of the steering when the direction of travel of the machine is reversed.
    Type: Grant
    Filed: February 24, 1977
    Date of Patent: August 29, 1978
    Assignee: Iowa Manufacturing Company
    Inventors: Louis F. Fairchild, Robert R. Brecht
  • Vibratory split roll
    Patent number: 4089616
    Abstract: A steerable split roll for a road roller includes a pair of roll shells containing means by which vibratory force is applied to each. Between adjacent ends of the roll shells a "turntable" type of bearing both connects the roll shells together for rotation relative to each other and maintains them in axial alignment.
    Type: Grant
    Filed: May 6, 1977
    Date of Patent: May 16, 1978
    Assignee: Iowa Manufacturing Company
    Inventors: Louis F. Fairchild, Harlan M. Jones, Vernon L. Schrimper