Patents by Inventor David J. Halvorson

David J. Halvorson 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).

  • Circular saw head
    Patent number: 6311746
    Abstract: A circular saw head for use as a boom mounted head attachment is disclosed for agricultural trimming. The blades can cut as much as four inches of material. An adjustable head piece is provided that is also reversible allowing for exposure of more or less of the blades. Safety aprons are provided to deflect cut material away from the operator.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: November 6, 2001
    Assignee: Alamo Group Inc.
    Inventors: David J. Halvorson, Travis A. Anderson