Patents by Inventor James Fredrick Saunders

James Fredrick Saunders 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 charge adjuster apparatus
    Patent number: 4106306
    Abstract: Herein is disclosed an electronically controlled apparatus for accurately charging and/or venting refrigerant for an air conditioning system having an air cooled condenser and capillary tube control. The system includes means for stabilizing the sensed pressure values, means for rapidly charging a refrigeration system having a gross undercharge, means for automatically terminating the operation of the charge adjuster and means utilizing condenser heat to increase the speed at which refrigerant may be added to the refrigeration apparatus.
    Type: Grant
    Filed: June 24, 1977
    Date of Patent: August 15, 1978
    Assignee: The Trane Company
    Inventor: James Fredrick Saunders