Patents by Inventor Rolf Sauermilch

Rolf Sauermilch 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).

  • Saw chain for motor chain saws
    Patent number: 4023453
    Abstract: A cutting saw chain having cutting tooth links distributed therealong. Each cutting tooth link having a portion at one end upstanding therefrom and twisted out of the plane of the link to form a cutting edge. The links on opposite sides of the chain have the upstanding portions twisted in opposite directions. Each cutting tooth link at the other end has a portion upstanding in the plane of the link and forming depth limiting means. A link in advance of each cutting tooth link also has an upstanding part forming a depth limiter for the following cutting tooth link.
    Type: Grant
    Filed: April 8, 1975
    Date of Patent: May 17, 1977
    Assignee: Andreas Stihl Maschinenfabrik
    Inventors: Hans Dolata, Rolf Sauermilch