Patents by Inventor Stephan Ostendorf

Stephan Ostendorf 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: 6192769
    Abstract: A gearhead assembly between a drive shaft and an output shaft of a trimmer arranged parallel but staggered to one another, includes a bearing shaft extending perpendicularly between the drive shaft and the output shaft. The bearing shaft has a first end supported in the first housing part and a second end supported in the second housing. A central gear is mounted on the bearing shaft. A clamping device has a clamping shaft that has a first and a second opposed ends engaging the first and second housing parts. The second housing part together with the output shaft is pivotable about the bearing shaft relative to the first housing part in a plane parallel to the axial direction of the drive shaft. The bearing shaft is a hub, and the clamping shaft penetrates the hub.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: February 27, 2001
    Assignee: Andreas Stihl AG & Co.
    Inventors: Thomas Stark, Stephan Ostendorf
  • Patent number: 6170159
    Abstract: A manually guided implement having a drive motor is provided. For a translatory movement of a tool member, the rotational movement of the drive motor must be converted by a gear arrangement, which has a gear wheel that is coupled with a component that glides on the end face of the gear wheel. To significantly reduce frictional losses and also wear of the pertaining components, a constantly effective, reliable lubricant is required. For this reason, at least one cutout is provided in the main body of the gear wheel and/or in the component that can glide on the end face thereof. Such cutouts are open to a glide plane and serve to accommodate a lubricant.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: January 9, 2001
    Assignee: Andreas Stihl AG & Co.
    Inventors: Jochen Kramer, Dieter Kremsler, Karl-Heinz Lange, Stephan Ostendorf
  • Patent number: 5771583
    Abstract: The invention is directed to a cutter blade support for a pair of knives of a hedge trimmer. The cutter blade support includes first and second bars conjointly defining a space therebetween. First and second cutter blades are arranged in the space and define respective sets of apertures formed therein. The first bar has openings formed therein and a plurality of threaded bolts are held in the second bar. The threaded bolts extend through the respective sets of apertures and have respective end portions extending through the openings in the first bar. Attachment nuts are disposed on the first bar and threadably engage corresponding ones of the end portions. The threaded bolts are pressed into the second bar so as to be tightly held therein and so as to be nonrotatable with respect thereto.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: June 30, 1998
    Assignee: Andreas Stihl
    Inventors: Dieter Kremsler, Kirsten Schellin, Wolfgang Weissert, Stephan Ostendorf