Patents by Inventor Walter Greulich

Walter Greulich 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: 4881680
    Abstract: A process for the production of composite camshafts comprises the selective positioning of a plurality of cam elements on a camshaft and orienting the cam elements at a desired location with respect to the central axis of the shaft and thereafter securing the cam elements in place on the shaft.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: November 21, 1989
    Assignee: Georg Fischer AG
    Inventors: Peter Toelke, Walter Greulich
  • Patent number: 4798178
    Abstract: The method of manufacturing the compound camshaft comprises the steps of placing cast journal or bearing elements and/or cast cam elements on a camshaft body and fixedly connecting or securing such elements at the camshaft body. The cast journal or bearing elements and/or the cam elements contain an opening which is bounded by an internal profile or contour having a configuration which is governed by the type of connection to be made between such elements and the camshaft body. The internal profile or contour may be of a substantially conical shape and is at least partially left in a mechanically untreated condition. The compound camshaft thus obtained is optimized with respect to wear and weight and there are neither required cost-intensive and time-consuming operations, especially machining operations, nor complicated working steps during the manufacturing process.
    Type: Grant
    Filed: February 27, 1986
    Date of Patent: January 17, 1989
    Assignee: Georg Fischer Aktiengesellschaft
    Inventors: Walter Greulich, Karl Gut, Klaus Hornung, Guther Schulte