Patents by Inventor Jimmy W. Copas

Jimmy W. Copas 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).

  • Slide gate
    Patent number: 5190182
    Abstract: A slide gate closure is provided for bottom discharge bins which are used for storing and transporting large quantities of dry chemicals. The slide gate includes screw means attached to the gate whereby the contents of the container may be fully or partially removed through a discharge opening by rotation of the screw means. Wedges are provided on and about the gate to form a six point contact between the slide gate and a sealing gasket.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: March 2, 1993
    Assignee: Hoechst Celanese Corporation
    Inventors: Jimmy W. Copas, Roderick G. MacLennan, III, Thomas L. Overcash, Michael D. Sawyer, Thomas D. Willingham