Patents by Inventor Stephen R. James

Stephen R. James 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: 4901556
    Abstract: A method, and apparatus, for removing a formed component (5) from a die (6) and reloading the die with a fresh billet (4) to form another component, wherein the fresh billet is forced into the die from below causing the die to be raised from a die block and engage a member (42) which separates the die into segments. When the die is thus separated, the component disengages from the segments permitting them to return to the die block with the fresh billet therein. The component is held on top of the die to be removed by a transfer mechanism.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: February 20, 1990
    Assignee: PFD Limited
    Inventor: Stephen R. James
  • Patent number: 4729822
    Abstract: An electrolytic cell of the filter-press type which comprises plate-like anodes, cathodes, and gaskets of an electrically-insulating material, and an ion-exchange membrane between each anode and adjacent cathode to form in the cell a plurality of anode compartments and cathode compartments, the gaskets, and optionally the anodes and cathodes, each containing apertures therein which form headers from which liquors may be charged to the anode and cathode compartments of the cell and to which products of electrolysis may be removed from the anode and cathode compartments of the cell, and in which the gaskets, and optionally the anodes and cathodes, each comprise an aperture therein which together form a compartment lengthwise of the cell which is in communication only with the anode compartments of the cell, or which is in communication only with the cathode compartments of the cell, and which serves as a balancing header.
    Type: Grant
    Filed: October 7, 1986
    Date of Patent: March 8, 1988
    Assignee: Imperial Chemical Industries PLC
    Inventor: Stephen R. James
  • Patent number: 4559803
    Abstract: A tool, and method, for making the outer member of a constant velocity universal joint of the cross-groove type, the outer member being of hollow form having in its interior two sets of helical grooves of opposite hand. The tool comprises first and second parts 15, 21 mounted for axial movement relative to one another, the parts having portions 23, 17 which can be brought into and out of mutual intercalation by such axial movement, the portions 17 carrying projections 18 which form the grooves of one hand and the portions 23 carrying projections 24 which form the grooves of the other hand.
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: December 24, 1985
    Assignee: PFD Limited
    Inventors: Edward A. Langford, Reginald L. Neale, Stephen R. James