Patents by Inventor John Alan Smith

John Alan Smith 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).

  • Balanced propeller shaft using a weight anchor
    Patent number: 5722896
    Abstract: A propeller shaft provided including, a tubular body (1) and a balance weight (5) attached to the body (1). The propeller shaft is characterised in that a stud (4) is welded to a cylindrical outer surface of the body (1) so as to project outwardly from that surface. The weight (5) has a hole (8) therethrough and located over the stud (4) so that the stud (4) extends into the hole (8). A terminal end portion (10) of the stud (4) contacts the weight (5) so as to thereby prevent separation of the weight (5) from the stud (4). A method for attaching a balance weight to a propeller shaft is also provided.
    Type: Grant
    Filed: July 1, 1997
    Date of Patent: March 3, 1998
    Assignee: Unidrive Pty. Ltd.
    Inventors: Russell James Beagley, John Alan Smith