Patents by Inventor Tom Schulthess

Tom Schulthess 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).

  • Process for cleaning asphalt tank cars
    Publication number: 20060254620
    Abstract: A method of removing residual asphalt from an asphalt transport tank car after substantially unloading the transported asphalt, including the steps of (1) chilling the interior of the tank car to make the residual asphalt brittle, and (2) chipping the brittle residual asphalt from the interior of the tank car. The tank car may be chilled by pumping cooled air into the tank and/or circulating cool liquid through the tank car coils. The tank may be chilled to about 40° F. or below. Chipping may be accomplished by pneumatic chisels or chippers.
    Type: Application
    Filed: May 13, 2005
    Publication date: November 16, 2006
    Inventors: Gilbert Olson, Tom Schulthess