Patents by Inventor Fred Zwald Stiteler

Fred Zwald Stiteler 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).

  • Secondary coolant purification system with demineralizer bypass
    Patent number: 3976541
    Abstract: Apparatus and method are provided for a nuclear stream supply system for adequately controlling the chemistry of the secondary coolant. The invention includes means for the addition of volatile chemicals, a full flow condensate demineralizer, continuous blowdown capability, radiation detection means, a condensate demineralizer bypass line, and an auxiliary demineralizer sized to handle full blowdown flow. The auxiliary demineralizer is cut into the system and the steam generator feedwater flow is bypassed around the full flow condensate demineralizer whenever radioactivity is detected in the secondary coolant.
    Type: Grant
    Filed: March 18, 1974
    Date of Patent: August 24, 1976
    Assignee: Combustion Engineering, Inc.
    Inventors: Fred Zwald Stiteler, James Phillip Donohue