Patents by Inventor Willard Edwin Williamson

Willard Edwin Williamson 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).

  • System and method for low side pump down in mobile refrigeration unit
    Patent number: 6619057
    Abstract: A microprocessor controlled system performs low pressure side pumpdown with the assistance of a service technician. When the refrigerant in the system is transferred to the high pressure side, the low pressure side is available for servicing by the technician.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: September 16, 2003
    Assignee: Carrier Corporation
    Inventors: Willard Edwin Williamson, Paul Valentine Weyna, Richard Alan Simone
  • System and method for low side pump down in mobile refrigeration unit
    Publication number: 20030110785
    Abstract: A microprocessor controlled system performs low pressure side pumpdown with the assistance of a service technician. When the refrigerant in the system is transferred to the high pressure side, the low pressure side is available for servicing by the technician.
    Type: Application
    Filed: December 13, 2001
    Publication date: June 19, 2003
    Applicant: Carrier Corporation
    Inventors: Willard Edwin Williamson, Paul Valentine Weyna, Richard Alan Simone