Patents by Inventor Alain Echard

Alain Echard 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).

  • Expensive abrasive base cutting wheels with a metallic core notched at the periphery
    Patent number: 4262650
    Abstract: A rotatable cut-off wheel includes a metal core notched at its periphery and having added abrasive elements for cutting material. The notches each have a profile which is non-parallel with the axis of rotation of the wheel, to reduce noise when the wheel is rotating.
    Type: Grant
    Filed: May 2, 1979
    Date of Patent: April 21, 1981
    Assignee: Applications Industrielles du Diamant S.T.I. Triffus France
    Inventors: Henri Ferrand, Alain Echard