Patents by Inventor Keith J. Pugh

Keith J. Pugh 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).

  • Constant velocity ratio universal joint having improved centering of inner and outer joint members
    Patent number: 5230659
    Abstract: A constant velocity ratio universal joint, suitable for high speed low angle use, comprises outer and inner joint members (10,11) with engaging part-spherical surfaces (12,13) and arcuate ball-receiving grooves (14,15) diverging towards an end of the outer joint member closed by a closure member (17) with balls (16) held in the grooves by an element (31) and support member (32) which is pivoted on the closure member, and a spring (36) acting between the element (31) and support member (32) so that the balls are urged as far as possible into the grooves to take up clearances and maintain stability of the joint, particularly under no-torque conditions.
    Type: Grant
    Filed: April 8, 1992
    Date of Patent: July 27, 1993
    Assignee: Hardy Spicer Limited
    Inventors: Colin A. Bird, Keith J. Pugh