Patents by Inventor Martin Schär

Martin Schär 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).

  • Cartridge piston with venting device
    Publication number: 20100200617
    Abstract: The cartridge piston includes a piston jacket and a venting device made as a cut-out and arranged at the piston jacket. Radial passages and one or more ring shaped passages in the surface of the piston that faces the media within a cartridge communicate with the cut-outs to vent air from the cartridge upon installation of the piston.
    Type: Application
    Filed: February 9, 2010
    Publication date: August 12, 2010
    Inventor: Martin Schär