Patents by Inventor Artis N. Howard

Artis N. Howard 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).

  • Rock breaker tool
    Patent number: 4666213
    Abstract: A rock breaker tool for use with earth working apparatus is disclosed. The tool includes a ripper tooth employed with a hammer and anvil arrangement located above the upper portion of the tooth. The present invention is so constructed as to minimize the transfer of force directly from the hammer to the hydraulic cylinders of the earth working apparatus. The invention may be employed with various types of earth working apparatus, including backhoes, bulldozers and ripper buckets.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: May 19, 1987
    Inventor: Artis N. Howard