Patents by Inventor Erich Kuhn

Erich Kuhn 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).

  • Casting plunger and casting unit with shut-off valve
    Patent number: 9505053
    Abstract: A casting plunger for a casting unit of a casting machine, includes a casting-plunger shut-off valve integrated into the casting plunger, having a valve seat and a valve body interacting therewith, wherein the shut-off valve, in an open position, enables a flow of a melt material through the casting plunger during a melt suction operation and, in a closed position, blocks said flow during a mold-filling operation. The casting plunger has a plunger sleeve, which is placeable against an inner wall of a casting cylinder of the casting unit and contains the valve seat, and a plunger ram which contains the valve body. The plunger sleeve and the plunger ram are movable axially with respect to one another by a predefinable valve stroke.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: November 29, 2016
    Assignee: Oskar Frech GmbH + Co. KG
    Inventors: Ronny Aspacher, Erich Kuhn, Norbert Erhard
  • Casting Plunger and Casting Unit with Shut-Off Valve
    Publication number: 20140042193
    Abstract: A casting plunger for a casting unit of a casting machine, includes a casting-plunger shut-off valve integrated into the casting plunger, having a valve seat and a valve body interacting therewith, wherein the shut-off valve, in an open position, enables a flow of a melt material through the casting plunger during a melt suction operation and, in a closed position, blocks said flow during a mold-filling operation. The casting plunger has a plunger sleeve, which is placeable against an inner wall of a casting cylinder of the casting unit and contains the valve seat, and a plunger ram which contains the valve body. The plunger sleeve and the plunger ram are movable axially with respect to one another by a predefinable valve stroke.
    Type: Application
    Filed: February 27, 2012
    Publication date: February 13, 2014
    Applicant: Oskar Frech GmbH + Co. KG
    Inventors: Ronny Aspacher, Erich Kuhn, Norbert Erhard
  • Converter housing
    Patent number: D675982
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: February 12, 2013
    Assignee: ABB Technology AG
    Inventors: Erich Kuhn, Frank Gruenig