Patents by Inventor Arthur Knowles

Arthur Knowles 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).

  • Vehicle road wheel mounting
    Patent number: 5129710
    Abstract: A vehicle road wheel mounting arrangement including a wheel hub with a shoulder against which a wheel center can be secured by a plurality of screwthreaded studs and nuts and, so that the vehicle wheel cannot be stolen even if all the nuts are removed from the screwthreaded studs, the hub having a groove containing a retainer ring and structure for urging the retainer ring radially outwards to make captive the wheel center on the hub.
    Type: Grant
    Filed: July 2, 1991
    Date of Patent: July 14, 1992
    Assignees: Arthur Knowles, Robert J. Knowles, Jean Tonks
    Inventor: Arthur Knowles
  • Drive engagement delay device
    Patent number: 4934498
    Abstract: A drive arrangement including an axially movable driving sleeve capable of being positively engaged to an output shaft connected to a driven element, the drive arrangement having a drive engagement delay device including a plurality of friction plates, the friction drive being sufficient to turn the output shaft but the frictional engagement of at least one of the friction plates with the longitudinal slide surfaces of the driving sleeve temporarily preventing its further movement.
    Type: Grant
    Filed: March 24, 1989
    Date of Patent: June 19, 1990
    Inventor: Arthur Knowles