Patents by Inventor Paul Thomas Wickberg

Paul Thomas Wickberg 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).

  • Method and apparatus to measure and transfer liquefied refrigerant in a refrigeration system
    Patent number: 7086237
    Abstract: A method, system and apparatus for transferring a measured level of liquefied refrigerant to a refrigeration system includes the steps of purging a calibration container; filling the calibration container with liquefied refrigerant from a liquefied refrigerant supply to a desired level; and charging a system with the liquefied refrigerant from the calibration container.
    Type: Grant
    Filed: May 6, 2004
    Date of Patent: August 8, 2006
    Inventors: Yakov Arshansky, Paul Thomas Wickberg, Daniel Thomas Johnson