Patents by Inventor James Paul Pelletier

James Paul Pelletier 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).

  • Pump shaft seal injection system
    Patent number: 4024911
    Abstract: Apparatus is described for supplying injection liquid to the primary coolant pump shaft seals in a pressurized water nuclear reactor system. The injection liquid is the resultant mixture of liquid extracted from both the upstream and downstream sides respectively of the regenerative heat exchanger in the chemical and volume control system of the plant. The temperature of this liquid is controlled by regulating the liquid proportions admitted in the respective flow streams.
    Type: Grant
    Filed: March 18, 1974
    Date of Patent: May 24, 1977
    Assignee: Combustion Engineering, Inc.
    Inventors: Alan Wayne Forrest, James Paul Pelletier