Patents by Inventor Fred B. Wachs, III

Fred B. Wachs, III 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).

  • Refrigeration system with evaporative subcooling
    Patent number: 5113668
    Abstract: A refrigeration system including a compressor, condenser and evaporator utilizes an evaporative subcooler downstream of the condenser for subcooling the refrigerant for increased system efficiency. The strategic placement of the subcooler for cooling in the liquid zone allows the operating pressure and temperature of the refrigeration system to be reduced and the refrigerant in the system to provide the greatest cooling effect in the evaporator. As an additional feature, a counterflow heat exchanger is provided in the liquid zone adjacent the subcooler in order to provide additional subcooling and also provide for warming of the cooling water used for evaporative cooling. The subcooler can be readily used as a retrofit in an existing system and is particularly adapted for increasing efficiency in high capacity use situations, such as in the food industry. Preferably, condensate water is used for cooling in the evaporative subcooler, but tap water is used for makeup cooling water.
    Type: Grant
    Filed: February 12, 1991
    Date of Patent: May 19, 1992
    Assignee: Advanced Cooling Technology, Inc.
    Inventors: Fred B. Wachs, III, Roy W. Abbott
  • Refrigeration system with evaporative subcooling
    Patent number: 5069043
    Abstract: A refrigeration system including a compressor, condenser and evaporator utilizes an evaporative subcooler downstream of the condenser for subcooling the refrigerant for increased system efficiency. The strategic placement of the subcooler for cooling in the liquid zone allows the operating pressure and temperature of the refrigeration system to be reduced and the refrigerant in the system to provide the greatest cooling effect in the evaporator. As an additional feature, a counterflow heat exchanger is provided in the liquid zone adjacent the subcooler in order to provide additional subcooling and also provide for warming of the cooling water used for evaporative cooling. The subcooler can be readily used as a retrofit in an existing system and is particularly adapted for increasing efficiency in high capacity use situations, such as in the food industry. Preferably, condensate water is used for cooling in the evaporative subcooler, but tap water is used for makeup cooling water.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: December 3, 1991
    Assignee: Advanced Cooling Technology, Inc.
    Inventors: Fred B. Wachs, III, Roy W. Abbott