Patents by Inventor John J. Koestner

John J. Koestner 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).

  • Auxiliary condenser system for decay heat removal in a nuclear reactor
    Patent number: 9728281
    Abstract: A nuclear reactor includes an internal steam generator and a nuclear core disposed in a containment structure. A condenser is disposed outside the containment structure, and includes a condenser inlet line tapping off a steam line connected to the steam generator outside the containment structure, and a condensate injection line conveying condensate from the condenser to the integral steam generator. Isolation valves are located outside the containment structure on a feedwater line, the steam line, and the condensate injection line. The valves have an operating configuration in which the isolation valves on the feedwater and steam lines are open and the isolation valve on the condensate injection line is closed, and a heat removal configuration in which the isolation valves on the feedwater and steam lines are closed and the isolation valve on the condensate injection line is open.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: August 8, 2017
    Assignee: BWXT MPOWER, INC.
    Inventor: John J Koestner
  • AUXILIARY CONDENSER SYSTEM FOR DECAY HEAT REMOVAL IN A NUCLEAR REACTOR
    Publication number: 20130272473
    Abstract: A nuclear reactor includes an internal steam generator and a nuclear core disposed in a containment structure. A condenser is disposed outside the containment structure, and includes a condenser inlet line tapping off a steam line connected to the steam generator outside the containment structure, and a condensate injection line conveying condensate from the condenser to the integral steam generator. Isolation valves are located outside the containment structure on a feedwater line, the steam line, and the condensate injection line. The valves have an operating configuration in which the isolation valves on the feedwater and steam lines are open and the isolation valve on the condensate injection line is closed, and a heat removal configuration in which the isolation valves on the feedwater and steam lines are closed and the isolation valve on the condensate injection line is open.
    Type: Application
    Filed: February 13, 2013
    Publication date: October 17, 2013
    Applicant: BABCOCK & WILCOX MPOWER, INC.
    Inventor: John J. Koestner