Patents by Inventor Ronal J. Maxwell

Ronal J. Maxwell 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 subcooler
    Patent number: 5865038
    Abstract: The present invention relates to an improved refrigeration subcooler comprising an accumulator and receiver apparatus for use in a refrigeration unit or heat pump. Specifically, the present invention relates to a subcooler that requires less refrigerant and is operable at lower operating pressures than conventional subcoolers.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: February 2, 1999
    Inventor: Ronal J. Maxwell
  • Refrigeration subcooler
    Patent number: 5619865
    Abstract: The present invention relates to an improved refrigeration subcooler comprising an accumulator and receiver apparatus for use in a refrigeration unit or heat pump. Specifically, the present invention relates to a subcooler that requires less refrigerant and is operable at lower operating pressures than conventional subcoolers.
    Type: Grant
    Filed: August 22, 1995
    Date of Patent: April 15, 1997
    Inventor: Ronal J. Maxwell