Patents by Inventor Ephraim Hirsch

Ephraim Hirsch 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).

  • Extruder and method of extrusion
    Publication number: 20040069036
    Abstract: An extruder includes a container having a main bore for receiving billets, a die and a piston. The container is formed with at least one gas release vent opening into the main bore at a position intermediate between the extruding end of the bore and a midpoint of the bore's length. Each gas release vent has a valve for allowing selective release of trapped gas. This structure allows venting of gases in such a manner as to allow sequential loading of billets without removal of scrap between them.
    Type: Application
    Filed: October 9, 2002
    Publication date: April 15, 2004
    Applicant: Klil Industries Ltd.
    Inventors: Ephraim Hirsch, Itamar Ohayon