Patents by Inventor Gerald T. Frizelle

Gerald T. Frizelle 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).

  • Viscous shear mixing device and method
    Patent number: 5403092
    Abstract: An apparatus and method for mixing photographic emulsions is disclosed. The mixer is a truncated hollow cone having a first circumference and a second end having a second circumference. The second circumference is larger than the first circumference. The cone is attached to an end of a central shaft attached to the first end. The rotation of the shaft produces micromixing of the photographic emulsion while minimizing air entrainment.
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: April 4, 1995
    Assignee: Eastman Kodak Company
    Inventors: Glen S. Lichtenberg, John R. Tinney, Paul A. Corbelli, Gerald T. Frizelle