Patents by Inventor Ernest E. Lloyd

Ernest E. Lloyd 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).

  • Platinum alloy jewellery wire
    Patent number: 4246322
    Abstract: This invention relates to fabricating wire and particularly wire at least the surface of which consists of platinum or a platinum-based alloy for use in the jewellery industry. The wire according to the invention comprises a first portion at least the outer surface of which consists essentially of platinum or a platinum-based alloy and a second portion in the form of a coating or layer on the outer surface of the first portion, the second portion consisting essentially of a metal or alloy which is soft relative to the platinum or platinum-based alloy. Preferably, the second portion consists essentially of copper.
    Type: Grant
    Filed: February 8, 1979
    Date of Patent: January 20, 1981
    Assignee: Johnson, Matthey & Co., Limited
    Inventors: John E. Wall, Ernest E. Lloyd