Patents by Inventor Charles L. Stigen

Charles L. Stigen 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).

  • Patent number: 5016319
    Abstract: A handle assembly for attachment to a screed includes a clamp sized to receive either a wooden screed or a metal screed, a power handle extending upwardly from and fixed to the clamp for controlling the attitude of the screed and applying power to pull the screed over freshly poured concrete, and a pivoted handle pivoted relative to the power handle for applying downward pressure and lifting forces to the screed. A single handle assembly can be used with a short screed or multiple handle assemblies can be used with longer screeds. The arrangement permits controlled movement during multiple passes of the screed over freshly poured concrete by a workman in a standing position.
    Type: Grant
    Filed: April 16, 1990
    Date of Patent: May 21, 1991
    Inventor: Charles L. Stigen