Patents by Inventor Steve B. Lewis

Steve B. Lewis 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).

  • Hydraulic lift boom attachable to a tractor's draw bar and three point hitch
    Patent number: 6030170
    Abstract: The hydraulic lift boom attachment including a support frame and a telescopic lifting arm wherein the support frame is coupled to a tractor's three point hitch which hydraulically raises or lowers the support frame. The telescopic lifting arm has one end coupled to the support frame and the other end is coupled to the tractor's draw bar via a pulley assembly to rotate such other end of the telescopic lifting arm when the support frame is hydraulically raised or lowered. Furthermore, the support frame of the hydraulic lift boom attachment includes a telescopic vertical support assembly to vary the vertical height of the telescopic lifting arm.
    Type: Grant
    Filed: April 6, 1998
    Date of Patent: February 29, 2000
    Inventor: Steve B. Lewis