Patents by Inventor Wayne Gholson

Wayne Gholson 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).

  • Cable tool with circulating drill stem
    Patent number: 4296823
    Abstract: A cable tool (10) includes a tool bit (12), a drill stem (14) and an adapter (16). Openings (32) are formed in a cutting face (18) of the tool bit (12) and inclined bores (34) extend upwardly within the tool bit (12) to an upwardly extending bit passageway (36). A retention chamber (46) is formed in the drill stem (14) communicating with the bit passageway (36) for storing rock and earth particles. An adapter passageway (52) communicates with the retention chamber (46) and includes a liquid drain (24) to drain water from the adapter passageway (52) and the retention chamber (46). Optionally, a flapper valve (64) may be mounted within the retention chamber (46) adjacent the bit passageway (36).
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: October 27, 1981
    Assignee: Varel Manufacturing Company
    Inventor: Wayne Gholson