Patents by Inventor Walter Gressler

Walter Gressler 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).

  • Patent number: 4639185
    Abstract: A transfer apparatus for bag packages in a packaging machine has a pair of tongs with jaws for transferring a flat bag which is delivered in a vertical plane, to bag holders of a conveyor apparatus on a path extending transversely to the plane (I) in which the bags are delivered. For quiet operation, which also needs little readjustment or supervision, the jaws are actuated via connecting rods and a lever mechanism. The tongs are rotatably supported on a pivot arm which is pivotable coaxially with the axis of rotation of the crank of the lever mechanism.
    Type: Grant
    Filed: October 17, 1985
    Date of Patent: January 27, 1987
    Assignee: Robert Bosch GmbH
    Inventors: Walter Gressler, Karl Kern