Patents by Inventor John A. Chitty

John A. Chitty 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).

  • Post weld heat treatment of shell and tube heat exchangers and apparatus
    Patent number: 4326897
    Abstract: An apparatus and method is provided for heat treating a tubular type heat exchanger. A heat fluid is passed through the tube bundle in order to heat the exchanger from within.
    Type: Grant
    Filed: June 6, 1979
    Date of Patent: April 27, 1982
    Inventors: Anthony Ruhe, John A. Chitty, James H. D. Nickerson