Patents by Inventor Jesse M. Sapp

Jesse M. Sapp 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).

  • Methods and apparatus for cleaning refrigeration equipment
    Patent number: 4934390
    Abstract: Methods and apparatus for cleaning refrigeration equipment by flushing all refrigerant paths with high pressure refrigerant, following an initial evacuation to prevent air contamination of the refrigerant. Highly effective leak tests may be simultaneously performed. A pump down procedure at the termination of the cleaning process returns all refrigerant to a first tank of the cleaning apparatus, and a contaminant removal procedure removes contaminants from the refrigerant in a second tank.
    Type: Grant
    Filed: December 15, 1988
    Date of Patent: June 19, 1990
    Assignee: Thermo King Corporation
    Inventor: Jesse M. Sapp