Patents by Inventor Bernice R. Farmer

Bernice R. Farmer 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).

  • Method of testing twister ring warp and apparatus therefor
    Patent number: 4742673
    Abstract: An apparatus and method for measuring twister ring warp on a twister frame are described. The apparatus involves a levelling device having flat contact points which engage the twister ring on the frame, and when all contact points are touching, the ring indicates the degrees of deflection from flat exhibited from the ring.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: May 10, 1988
    Assignee: PPG Industries, Inc.
    Inventor: Bernice R. Farmer