Patents by Inventor Joe H. Bunton

Joe H. Bunton 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: 5605292
    Abstract: A high performance classifier system for use in a pulverizer mill (e.g., a mill used to crush large coal particles into small particles). The classifier system includes a cylindrical extension member with a roughened interior surface. Other permitted features include a converging/diverging orifice on the interior surface of the mill body, curved classifier vanes at the upper end of the classifier, and tilted vanes between the mill housing and the upper end of the classifier. Improvements in efficiency of particle separation are achieved.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: February 25, 1997
    Assignee: March-Southwestern Corp.
    Inventor: Joe H. Bunton
  • Patent number: 5529253
    Abstract: A spring canister for use in a coal pulverizer to impart an axial load to a bracket assembly supporting a grinding wheel or roller. The axial load causes the bracket assembly to pivot downwardly to increase the grinding force between the wheel or roller and the grinding bowl.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: June 25, 1996
    Assignee: March-Southwestern Corp.
    Inventors: Louis J. Maillet, Matthew R. Brown, Joe H. Bunton
  • Patent number: 5480099
    Abstract: A brush-type mill sweep which is particularly suited for pyrite removal from the floor of a vertical spindle coal pulverizer. The mill sweep is secured at one end to the spindle or the shaft skirt, and the mill sweep includes a plurality of downwardly-extending cables which are flexible and resilient for removing ungrindable rejects from the floor of the pulverizer beneath the grinding bowl.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: January 2, 1996
    Assignee: March-Southwestern Corp.
    Inventor: Joe H. Bunton
  • Patent number: 5127590
    Abstract: An improved rotating throat/air port ring assembly is described for use in a pulverizing mill of the type including a rotating bowl member in a housing. The improved assembly includes (1) a vaned throat/air port ring element secured to the periphery of the bowl and including vanes which are tilted 20.degree. to 40.degree. from vertical, (2) an inclined liner extending around the bowl above the ring element, and (3) a skirt extending outwardly and downwardly from the ring element to guide inlet air through the vaned throat/air port ring element.
    Type: Grant
    Filed: April 9, 1991
    Date of Patent: July 7, 1992
    Assignee: March-Sourthwestern Corp.
    Inventor: Joe H. Bunton