Patents by Inventor Earl B. Davis

Earl B. Davis 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).

  • Patent number: 6450479
    Abstract: A valve opening and closing system for valves that are difficult to access has a universal torque rod to which one of a plurality of different sized socket wrench heads, forming a set, is individually attachable to the distal end thereof. Each socket wrench head of the set is color coded and may be stamped to indicate its specific size. The torque rod has a handle that forms a T-bar with the shank of the torque rod. An extension handle can be attached to increase handle length. An extension member can also be attached to the torque rod via its socket collar, to increase its length.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: September 17, 2002
    Inventors: Stuart A. Reynolds, Earl B. Davis