Patents by Inventor Joseph A. Warner

Joseph A. Warner 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).

  • Patent number: 5077901
    Abstract: A ceramic cutting blade includes a cutter portion having first and second side edges which converge at a distal acute angle to form a distal cutting tip and a cutting edge formed by first and second cutting faces oriented at a bevel angle. At least one of the cutting faces includes striations having a grain direction substantially perpendicular to the cutting edge, and these striations have a width of between 20 and 40 microns. The distal acute angle is preferably less than forty degrees, and the cutting tip is truncated along a straight line at an angle of truncation of at least forty degrees with respect to the cutting edge. The blade may be received by a handle or may be integrally molded with a handle portion.
    Type: Grant
    Filed: May 18, 1990
    Date of Patent: January 7, 1992
    Inventors: Joseph A. Warner, Leo A. Kennedy