Patents by Inventor Larry D. Aldrink

Larry D. Aldrink 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).

  • Self-leveling laser assembly
    Patent number: 3936197
    Abstract: Self-leveling light beam projection apparatus for projecting and maintaining a beam of light along a predetermined path relative to the earth's vertical. A housing adapted for mounting in a predetermined plane includes a light source such as a laser generator for generating a collimated beam of light. A lens system including a pendulum mounting at least one lens is mounted for movement about mutually perpendicular axes to seek the vertical and to maintain the projected beam along the predetermined path despite the relative positions of the housing and light source.
    Type: Grant
    Filed: May 6, 1974
    Date of Patent: February 3, 1976
    Assignee: Laser Alignment, Inc.
    Inventors: Larry D. Aldrink, Edward G. Nielsen, Willard G. Vogelaar