Patents by Inventor Wilhelm Kratzer

Wilhelm Kratzer 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).

  • Grasping device for handling equipment
    Patent number: 4729588
    Abstract: A grasping device for handling equipment has clamping fingers (4) which are movable relative to one another and an actuating device (5) for the clamping fingers which consists of piston-in-cylinder units (9, 17) which are coaxially arranged one behind the other and coupled in force transmitting manner. These piston-in-cylinder units are energized in the same sense by the pressure medium. This space saving construction makes it possible to achieve high clamping forces for a given pressure of the pressure medium while maintaining compact external dimensions of the grasping device.
    Type: Grant
    Filed: October 28, 1986
    Date of Patent: March 8, 1988
    Assignee: Fibro GmbH
    Inventor: Wilhelm Kratzer