Patents by Inventor Ian Anthony Dockerill

Ian Anthony Dockerill 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: 4068518
    Abstract: A method of manufacturing an extruded steel component for use in a roller clutch assembly comprises initially providing a steel preform which defines a hollow shank part of the required component and which includes a hollow head portion tapering inwardly to the shank part, the external diameter of the head portion being substantially equal to the external diameter of a hollow head part of the required component, but the bore in the head portion having a diameter less than that required for the head part. Then with the preform positioned in a die cavity of the shape of the required component, an extrusion operation is performed on the head portion of the preform using a punch including inner and outer, relatively movable punch members, the inner punch member defining the shape of the bore required in the head part of the component.
    Type: Grant
    Filed: May 17, 1976
    Date of Patent: January 17, 1978
    Assignee: Lucas Industries Limited
    Inventor: Ian Anthony Dockerill