Patents by Inventor Erik W. Sundstrom

Erik W. Sundstrom 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).

  • Chain saw bar
    Patent number: 4506444
    Abstract: Chain saw bar having at its free end a sprocket 20 which supports the saw chain and is rotatably mounted between two side plates (18, 19) in the saw bar on a tubular shaft (26) which is rigidly connected to the sprocket and is adapted to transfer rotation to a driven shaft inserted into the tubular shaft bearing means (24, 25) being arranged in both side plates rotatably supporting the tubular shaft. According to the invention the tubular shaft (26) is short enough to be inserted into a kerf sawed by a saw chain mounted on the saw bar.
    Type: Grant
    Filed: March 23, 1983
    Date of Patent: March 26, 1985
    Assignee: Santrade Ltd.
    Inventor: Erik W. Sundstrom
  • Cutting tool
    Patent number: 4311075
    Abstract: A cutting tool is provided with cutting elements being arranged in continuously recurrent groups comprising three or four cutting elements. These cutting elements are arranged in different distances (A, B, C, D, E, F, G) to each other which distances shall be within certain determined limits.
    Type: Grant
    Filed: September 7, 1979
    Date of Patent: January 19, 1982
    Assignee: Sanvik Aktiebolag
    Inventor: Erik W. Sundstrom
  • Chain saw guide bar
    Patent number: 4159569
    Abstract: A sprocket wheel, bearing and bearing plate of a chain saw guide bar are mounted as a separate unit between the side plates of the guide bar.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: July 3, 1979
    Assignee: Sandvik Aktiebolag
    Inventor: Erik W. Sundstrom