Patents by Inventor John A. Hitchner

John A. Hitchner 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).

  • Roller skate bearing
    Patent number: 4398329
    Abstract: An unground ball bearing is manufactured by forming a straight-sided cup shaped outer race having an aperture in the base and a radially inwardly extending flange about the periphery of the cup rim. The outer and inner races are heat treated and subjected to a surface finishing step and the ball bearing is subsequently assembled by inserting the balls within the outer race and then snapping the inner race into position within the outer race by forcing it past the flange on the outer race.
    Type: Grant
    Filed: July 13, 1981
    Date of Patent: August 16, 1983
    Assignee: Virginia Industries, Inc.
    Inventors: John A. Hitchner, Henry A. Klipp