Patents by Inventor John A. Tanner

John A. Tanner 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).

  • Vibratory separator plate for flake-like members
    Patent number: 5211291
    Abstract: A separator plate construction for flake-like members including a plate body having a longitudinal axis, a plurality of elongated slot openings in the plate body extending longitudinally of the longitudinal axis, and orienters on the plate body for orienting elongated flake-like members which are thinner but wider than the openings into a direction extending longitudinally of the openings and rotating them so that they can pass through the openings.
    Type: Grant
    Filed: November 7, 1991
    Date of Patent: May 18, 1993
    Assignee: Derrick Manufacturing Corporation
    Inventors: Christopher P. Kelley, John A. Tanner