Patents by Inventor Craig Allen Barnes

Craig Allen Barnes 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).

  • Spherical joint connecting rod
    Patent number: 5685267
    Abstract: A spherical joint connecting rod. The connecting rod has a small end which terminates in a sphere or ball, and a big end which is adapted to sliding engage an engine crankshaft. The small end and big end of the connecting rod are coupled by a shank having a substantially elliptical cross-section. The shank has formed therethrough an internal oil passage which allows transmission of lubricating/cooling oil from the engine crankshaft to the spherical joint of the piston and to the piston cooling gallery.
    Type: Grant
    Filed: February 7, 1996
    Date of Patent: November 11, 1997
    Assignee: Cummins Engine Company, Inc.
    Inventors: Paul David Wiczynski, Craig Allen Barnes, Richard Belush, Richard Duane Conrow, Siegfried Gustav Mielke