Patents by Inventor Patrik Stoltz

Patrik Stoltz 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).

  • Punch stripper and press tool
    Publication number: 20080105095
    Abstract: A punch stripper is adapted to be fastened to a punch retainer of a press tool, and to retain a work piece as the piece is being machined by a punch. The punch stripper includes a punch stripper piston and a pressure chamber adapted to spring-load the punch stripper piston. The pressure chamber is at least partially defined by a gap between an inner sleeve and an outer sleeve. The punch stripper piston has a portion that is axially displaceable in the gap.
    Type: Application
    Filed: October 2, 2007
    Publication date: May 8, 2008
    Inventors: Fredrik Ekman, Patrik Stoltz