Patents by Inventor David Bruce Green

David Bruce Green 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).

  • Heating device
    Patent number: 3965334
    Abstract: A heating device, comprising a tubular body whose inner wall bounds a heating chamber for objects. Between the inner wall and the outer wall of this body a plurality of ducts is provided which are situated in a ring-shape about the heating chamber and which extend parallel to the tube axis. These ducts are separated from each other by rigid partitions. Each duct contains evaporable heat transport medium.
    Type: Grant
    Filed: April 25, 1973
    Date of Patent: June 22, 1976
    Inventors: George Albert Apolonia Asselman, David Bruce Green, Adrianus Petrus Johannes Castelijns, Pieter Aart Naastepad, Jacob Willem De Ruiter