Patents by Inventor Leslie Charles Wright

Leslie Charles Wright 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).

  • Twin roller casting
    Patent number: 5915454
    Abstract: A twin roll casting machine has an end-dam structure at each end of the pair of rolls. Each end-dam structure comprises a first part which is urged into engagement with the rolls in the vicinity of the narrowest part of the gap with a contact pressure which prevents leakage of molten metal. A second part, positioned above the first part, is urged into engagement with the rolls with a contact pressure which is less than that of the first part, but which nevertheless prevents leakage of molten metal.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: June 29, 1999
    Assignee: Davy McKee (Sheffield) Limited
    Inventors: Leslie Charles Wright, Dong Kyun Choo