Patents by Inventor Erich Huelmann

Erich Huelmann 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 blade
    Patent number: 6058923
    Abstract: The invention relates to a saw blade for cutting, slotting or grooving natural rock and synthetic construction materials, such as concrete, reinforced concrete, brick, asphalt or the like. The saw blade has a sawblade body and a plurality of segments which are arranged on the circumference of the sawblade body and are provided with radially projecting lugs which each bear an abrasive body. The segments are attached to the sawblade body by means of a thermally decoupling tongue-and-groove joint.
    Type: Grant
    Filed: August 12, 1998
    Date of Patent: May 9, 2000
    Assignee: Fa. Joh. Wilh. Arntz
    Inventors: Jan Wilhelm Arntz, Erich Huelmann