Patents by Inventor Claude Raymond Demers

Claude Raymond Demers 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).

  • Multi-purpose, multi-transfer, multi-position shielding gas for arc welding
    Patent number: 6274838
    Abstract: A shielding gas composition and method of using the shielding gas in gas metal arc welding or flux cored are welding, or composite cored arc welding. The gas is a mixture of argon, helium and carbon dioxide blended to facilitate metal transfer in any position for all the named processes.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: August 14, 2001
    Assignee: Air Products and Chemicals Inc.
    Inventors: Claude Raymond Demers, Guy LeHouillier