Patents by Inventor Richard Calvin Ellithorpe

Richard Calvin Ellithorpe 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: 4050740
    Abstract: A method of, and apparatus for, melting block sulfur to avoid contamination of the environment by sulfur dust employ a heating element having a plurality of flow passages formed by pipe sections in a generally planar array, with a steam inlet and a condensate outlet enabling steam to be flowed through the passages. The underside of the heating element has a flow surface adjacent one edge thereof, and a suspension is provided for lowering the heating element onto the sulfur block with the heating element downwardly inclined towards that edge and with the edge projecting beyond the sulfur block so that molten sulfur adhering by surface tension to the flow surface flows beyond the sulfur block and drops into a collecting trough.
    Type: Grant
    Filed: February 18, 1976
    Date of Patent: September 27, 1977
    Inventors: Ernest Ralph Ellithorpe, Richard Calvin Ellithorpe