Patents by Inventor David A. Johnas

David A. Johnas 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).

  • Automatic actuating baffle for a dump box
    Patent number: 6764138
    Abstract: An automatic actuated baffle for a dump box includes a baffle, a first actuating link, a second actuating link, and an actuation device. One end of the baffle is pivotally attached to a side wall of the dump box and the other end of the baffle is pivotally attached to one end of the first actuating link. The other end of the first actuating link is pivotally attached to one end of the second actuating link. The other end of the second actuating link is pivotally attached to the side wall of the dump box. Retraction of a fully extended actuation end of the actuation device causes the second actuating link to pivot, which causes the baffle to extend outward from the side wall of the dump box.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: July 20, 2004
    Inventor: David A. Johnas