Patents by Inventor William Lingenfelter

William Lingenfelter 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).

  • Substrate removal apparatus
    Patent number: 7097383
    Abstract: A substrate removal apparatus capable of cutting a plurality of aligned, precision slots in a variety of surfaces, such as concrete, asphalt pavement, and other composite substrates, utilizes high-pressure liquid cutting devices. Slots may be cut in pavement for such applications as dowel bar retrofitting for joint load transfer restoration. An apparatus according to one embodiment includes a support frame, a carriage carried by the support frame, and cutting devices coupled to the carriage. The apparatus is configured so that the carriage is movable along a generally horizontal path of travel and a generally vertical path of travel.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: August 29, 2006
    Assignee: Waterwerks Inc.
    Inventors: Thomas Chase, William Lingenfelter
  • Substrate removal apparatus
    Patent number: 6953303
    Abstract: A substrate removal apparatus capable of cutting a plurality of aligned, precision slots in a variety of surfaces, such as concrete, asphalt pavement, and other composite substrates, utilizes high-pressure liquid cutting devices. Slots may be cut in pavement for such applications as dowel bar retrofitting for joint load transfer restoration. An apparatus according to one embodiment includes a support frame, a carriage carried by the support frame, and cutting devices coupled to the carriage. The apparatus is configured so that the carriage is movable along a generally horizontal path of travel and a generally vertical path of travel.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: October 11, 2005
    Assignee: Waterwerks Inc.
    Inventors: Thomas Chase, William Lingenfelter