Patents by Inventor Paul V. Bernard

Paul V. Bernard 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).

  • Liquid ring pump seal liquid chiller system
    Patent number: 4359313
    Abstract: In a system for evacuating fluids having vapor and gaseous phases, including a liquid ring pump, the seal liquid for which is provided in a closed system and is cooled by a heat exchanger through cooling liquid fed to the heat exhanger from outside the system, means are provided for diverting the seal liquid through a chiller when the temperature of the cooling liquid approaches the temperature of the gas/liquid mixture entering the pump. The chiller maintains the seal liquid temperature below the temperature of the cooling liquid in the heat exchanger and the cooling liquid is used in the chiller to receive the heat rejected from the seal liquid.
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: November 16, 1982
    Assignee: The Nash Engineering Company
    Inventor: Paul V. Bernard