Patents by Inventor Christopher G. Ward

Christopher G. Ward 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: 4687086
    Abstract: A torsional vibration damper primarily for use in a friction clutch driven plate has a hub with a radial flange. An outer member includes two generally annular side plates, one each side of the flange joined by stop pin rivets and mounted for limited relative angular movement with respect to the hub. Compression springs act between the hub and the outer member in mutually aligned circumferentially directed apertures in the flange and side plates to control the relative rotation. A generally annular control plate is mounted for angular movement with respect to the hub and the outer member and has tabs which engage a side plate to limit relative rotation between the control plate and the hub to less than the relative rotation available between the hub and the outer member.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: August 18, 1987
    Assignee: Automotive Products plc
    Inventor: Christopher G. Ward