Patents by Inventor Robert Perrot

Robert Perrot 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).

  • Method of manufacturing 12 to 14% Mn steel components with weldable end pieces
    Patent number: 4185773
    Abstract: Method of manufacturing steel components containing 12 to 14% by weight of manganese having an austenitic structure, said parts being provided with steel end pieces having a mainly austenitic structure permitting their junction by welding to components made of any desired alloy, wherein, before applying thermal treatment, said end pieces are cast into moulds disposed directly at the ends of said manganese steel components. The ends of the manganese steel component are shaped and the end pieces are subsequently cast thereon in such a manner that each end of the part comprises a front surface inclined about a transverse horizontal axis.
    Type: Grant
    Filed: October 29, 1976
    Date of Patent: January 29, 1980
    Assignee: Societe des Acieries de Paris et D'Outreau
    Inventors: Pierre Blanc, Robert Perrot