Patents by Inventor Jacques G. W. R. Havard

Jacques G. W. R. Havard 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).

  • Patent number: 5592821
    Abstract: A separator-diffuser for a gas turbine engine is disclosed wherein the diffuser includes axial walls which function as a guide vane stage for the oxidizer compressor. By incorporating the last, or downstream, guide vane stage into the diffuser structure, the overall axial length and bulk of the gas turbine engine may be significantly reduced. The separator-diffuser has a wall defining a generally annular oxidizer flow passage extending around the central axis of the gas turbine engine, the passage having an oxidizer inlet located downstream of the last rotor stage of the oxidizer compressor so as to enable the oxidizer to pass from the oxidizer compressor into the oxidizer flow passage. A generally annular separator member is located in the oxidizer flow passage downstream of the oxidizer inlet so as to divide the oxidizer flow passage into at least two separate oxidizer flow paths, each flow path having a separate oxidizer outlet.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: January 14, 1997
    Assignee: Societe Nationale D'Etude et de Construction de Moteurs F'Aviation S.N.E.C.M.A.
    Inventors: Jean-Paul D. Alary, Gerard Y. G. Barbier, Corine G. Delahaye, Jacques G. W. R. Havard, Paul Mackovic, Bruno R. H. Masse, Didier Merville, Francois J.-P. Mirville, Serge R. Y. Muccioli, Denis J. M. Sandelis, Ralph M. Stelter
  • Patent number: 5483034
    Abstract: The process makes it possible to produce partitioned boxes by carrying out the fastening or fixture from the outside of said boxes.Use is made of two successive inclined laser beam shots or flashes (8A,8B), which intersect at the upper surface (1B) of the part (1) constituting the assembly head. The two laser welding axes (8A,8B) intersect two upper corners (2C) of the part (2) serving as the base of the T. The welding device is positioned outside the box, i.e. on the side of the upper surface (1B) of the head (1) of the T.Application to the manufacture of the arms of the outer duct of a turbojet engine.
    Type: Grant
    Filed: May 24, 1994
    Date of Patent: January 9, 1996
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation "SNECMA"
    Inventors: Jacques G. W. R. Havard, Michel R. Jouardet, Jean-Yves M. Loreau, Gerard L. Zanolin