Patents by Inventor Michael A. Yowler

Michael A. Yowler 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).

  • System for leveling workpieces
    Patent number: 5227864
    Abstract: A laser alignment apparatus is provided for use in positioning workpieces relative to one another and first and second spaced-apart substantially parallel reference planes. The laser alignment apparatus comprises a first projector for providing first and second reference beams of light disposed in a substantially orthogonal relationship with respect to one another. A second projector provides third and fourth reference beams of light disposed in a substantially orthogonal relationship with respect to one another. The first and second projectors are positioned relative to one another so that the first and third reference beams of light are substantially collinear with one another and the second and fourth reference beams of light are positioned substantially parallel to one another.
    Type: Grant
    Filed: June 14, 1991
    Date of Patent: July 13, 1993
    Assignee: Spectra-Physics Laserplane, Inc.
    Inventor: Michael A. Yowler