Patents by Inventor Walter John Pohl

Walter John Pohl 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 of forming constriction in tubing
    Patent number: 3967489
    Abstract: The present invention provides a method of forming a flow restriction in a tube to be used as a capillary in a refrigeration system. The method includes shaping the tube longitudinally to a preselected configuration, and then squeezing a section of the tube while directing a fluid therethrough until the fluid reaches a preselected pressure.
    Type: Grant
    Filed: May 15, 1975
    Date of Patent: July 6, 1976
    Assignee: General Electric Company
    Inventors: Walter John Pohl, Roy W. Abbott