Patents by Inventor Donald Ray Hall

Donald Ray Hall 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: 5990450
    Abstract: A rotary conveyor comprising an annular array of a plurality of circumferentially spaced work piece support members for receiving a corresponding plurality of work pieces. They conveyor further include a first drive ring coaxially associated with the array for rotating the work pieces in the work piece support members. The drive ring is rotatable with respect to the array such that relative movement between the drive ring and the array causes the work pieces to rotate. The invention further includes a rotary oven for depositing and curing resin on work pieces having a shaft thereon. The oven comprises an annular array having a plurality of circumferentially spaced work piece support members. Each work piece support member has a sprocket mounted on its radially inward end and is shaped so as to receive a work piece in its radially outward end.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: November 23, 1999
    Assignee: Odawara Automation, Inc.
    Inventors: Eric John Kirker, William R. Patterson, Jr., Donald Ray Hall, David L. Hall