Patents by Inventor Richard Robert Brown

Richard Robert Brown 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).

  • Multi-piece lathe chuck for silicon ingots
    Patent number: 6083092
    Abstract: Improved chucks for supporting elongate objects having conical end portions, such as single crystal ingots of semiconductor material, while such objects are held and rotated, as in a lathe. A base portion of the chuck includes bores to accept fasteners to fasten the base to a headstock or tailstock of a lathe. The base includes a receptacle for holding an annular chuck insert which has a conical socket surface to engage the body, such as a conical end portion of a single crystal ingot, to be held and rotated. Alternatively, the base may have three or more rollers spaced equally about a central axis and rotatable about roller axes all located in a plane perpendicular to the central axis.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: July 4, 2000
    Assignee: SEH America, Inc.
    Inventors: Richard M. Aydelott, Travis Nice, Richard Robert Brown
  • Multi-piece lathe chuck for silicon ingots
    Patent number: 6012976
    Abstract: Improved chucks for supporting elongate objects having conical end portions, such as single crystal ingots of semiconductor material, while such objects are held and rotated, as in a lathe. A base portion of the chuck includes bores to accept fasteners to fasten the base to a headstock or tailstock of a lathe. The base includes a receptacle for holding an annular chuck insert which has a conical socket surface to engage the body, such as a conical end portion of a single crystal ingot, to be held and rotated. Alternatively, the base may have three or more rollers spaced equally about a central axis and rotatable about roller axes all located in a plane perpendicular to the central axis.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: January 11, 2000
    Assignee: SEH America, Inc.
    Inventors: Richard M. Aydelott, Travis Nice, Richard Robert Brown