Patents by Inventor Lawrence A. Goddard

Lawrence A. Goddard 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).

  • Refrigerant recovery and purification system
    Patent number: 4476688
    Abstract: The present invention is directed to a self-contained refrigerant recovery and purification system capable of removing gaseous refrigerants from a disabled refrigeration unit for cleaning acid and impurities from the refrigerant so that the refrigerant can be reused or saved rather than being lost to the atmosphere or otherwise wasted. In addition to the feature of saving, cleaning and returning the refrigerant to the repaired refrigeration unit, the present invention can be used as a temporary condensing unit, or for clearing oil restrictions from lines in the refrigeration unit with a high-pressure build-up feature, or as a vacuum pump.
    Type: Grant
    Filed: February 18, 1983
    Date of Patent: October 16, 1984
    Inventor: Lawrence A. Goddard