Patents by Inventor Harry Grunwald

Harry Grunwald 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).

  • Gripper or clamping device
    Patent number: 6827381
    Abstract: In a gripper device for manually operated or automatic handling devices, having a gripper housing, at least one base jaw displaceably seated in the gripper housing, and a drive for the base jaw, wherein the drive comprises a hydraulically or pneumatically chargeable piston displaceably seated in a cylinder and a spline hook gear, an optimal sealing of the base jaw in the gripper housing is achieved in that the base jaw has a sealed, for example circular or polygonal, cross section at least in the section extending from the gripper housing when the gripper device is opened.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: December 7, 2004
    Assignee: Fritz Schunk GmbH & Co. KG Fabrik fur Spann-und Greifwerkzeuge
    Inventors: Andreas Reichert, Harry Grunwald, Ulrich Arnold