Patents by Inventor Chang-Han Yi

Chang-Han Yi 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).

  • Mixing apparatus
    Patent number: 3963221
    Abstract: A mixing apparatus is disclosed that is particularly suitable for the gravity feed mixing of granular materials. The apparatus comprises a main conduit divided into sub-conduits having substantially constant cross-sectional areas. The sub-conduits mix and re-mix sub-streams of material flowing through the apparatus. The sub-conduits are described by planar surfaces, and the cross-sectional area of the main conduit is substantially constant throughout the length of the apparatus.
    Type: Grant
    Filed: February 28, 1974
    Date of Patent: June 15, 1976
    Assignee: Union Carbide Corporation
    Inventor: Chang-Han Yi