Patents by Inventor Charles E. Downing

Charles E. Downing 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).

  • Publication number: 20020121120
    Abstract: A method of manufacturing micro-multi-port tubing including actuating a hydraulic press to apply a force to a billet to extrude material through a die opening. The die opening defines at least two distinct segments to produce a single, unitary, continuous micro-multi-port extrusion strand having at least two distinct segments being interconnected by a web section. The method further includes separating the single, unitary, continuous micro-multi-port strand to substantially remove and/or reshape the web section to define at least two separate and independent micro-multi-port tubing segments from a single extrusion strand.
    Type: Application
    Filed: December 21, 2001
    Publication date: September 5, 2002
    Inventors: Frank F. Kraft, Jerry M. Ziems, Charles E. Downing