Patents by Inventor Alan D. Wiltshire

Alan D. Wiltshire 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).

  • Abrasive medium
    Patent number: 5355637
    Abstract: An abrasive medium suitable for the cutting tip of a turbine blade of a gas turbine engine comprises cubic boron nitride grit coated with a layer of aluminum nitride. Coating of the grit particles is carried out by vapour deposition in a fluidised bed reaction.
    Type: Grant
    Filed: September 14, 1993
    Date of Patent: October 18, 1994
    Assignee: Rolls-Royce plc
    Inventors: Alan D. Wiltshire, Terry E. Rowen