Patents by Inventor Peter Graemann

Peter Graemann 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: 6223515
    Abstract: A link chain having chain links interconnected at respective hinge points by a hinge bolt, at least one bearing bushing arranged on a hinge bolt, at least one roller arranged on said bearing bushing such that it is rotatable about the hinge bolt, and an axial retaining device attached to the hinge bolt and used for axially securing the bearing bushing and the roller. For reducing vibrations in the link chain, a bearing bushing is provided having an axial damping area on at least one end face area thereof, the damping area being formed integrally with the bearing bushing, and the bearing bushing being arranged such that the damping area rests against the axial retaining device.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: May 1, 2001
    Assignee: Joh. Winklhofer & Sohne GmbH & Co. KG
    Inventors: Richard Koschig, Peter Graemann, Peter Schulze