Patents by Inventor Stephen J. Werfel

Stephen J. Werfel 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).

  • WATER HEATER WITH COUNTER-TWISTED BAFFLE
    Publication number: 20120192812
    Abstract: A water heater including a storage tank, a combustion chamber, a burner for producing products of combustion, the burner positioned in the combustion chamber, a flue extending from the combustion chamber through the storage tank, and a baffle positioned within the flue and directing the flow of the products of combustion through the flue. The baffle includes multiple clockwise twist segments and multiple counterclockwise twist segments.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 2, 2012
    Inventors: Ramin K. Rahmani, George W. Kraus, Roger D. Veen, Stephen J. Werfel, J. Eric Arnold, John L. Dreher