Patents by Inventor Robert Martinou

Robert Martinou 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).

  • Pickling process for heat-resistant alloy articles
    Patent number: 4707191
    Abstract: A pickling bath for iron or nickel based heat-resistance alloy article having at least 3.5% molybdenum is disclosed. The bath consists of an aqueous solution of hydrochloric acid, nitric acid, acetic acid, phosphoric acid and further contains a ferric salt. Processes for using the bath to treat said alloy articles are also disclosed.
    Type: Grant
    Filed: January 29, 1987
    Date of Patent: November 17, 1987
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation (SNECMA)
    Inventors: Robert Martinou, Michel Ruimi
  • Method of repairing heat resistant alloy parts
    Patent number: 4655383
    Abstract: The instant invention describes a method of repairing heat-resistant alloy parts which have been cracked or otherwise damaged due to exposure of combustion gases from a turbojet engine. The method includes chemically cleaning the surface of the part to remove the layer of contaminants and subjecting the part to a thermochemical treatment to thoroughly clean the cracks and other narrow, damaged areas. A diffusion brazing process is then utilized to fill the cracks or damaged areas.
    Type: Grant
    Filed: May 13, 1985
    Date of Patent: April 7, 1987
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation
    Inventors: Jean-Paul Fournes, Jacques Lesgourgues, Robert Martinou