Patents by Inventor Henry R. Leclerc

Henry R. Leclerc 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).

  • System for cooling a high power fuel injector of a dual injector
    Patent number: 5577386
    Abstract: The present invention relates to a system for cooling a high power fuel injector of a dual fuel injector wherein the system comprises a first fuel supply circuit having a first conduit connecting a fuel feed supply and the high power fuel injector, the first conduit having a terminal end adjacent to a distal end of the high power fuel injector, and a second conduit connecting the terminal end of the first conduit to the low power fuel injector such that all of the fuel supplied to the low power injector first passes through the high power fuel injector. The system also has a second fuel supply circuit, separate from the first fuel supply circuit, which comprises a third conduit connecting the fuel feed supply and the fuel injection orifices of the high power fuel injector so as to supply fuel to the fuel injection orifices.
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: November 26, 1996
    Assignee: Societe Nationale D'Etude et de Construction de Moteurs D'Aviation S.N.E.C.M.A.
    Inventors: Jean-Paul D. Alary, Guy D'Agostino, Henry R. Leclerc, Denis Sandelis, Pierre M. V. E. Schroer
  • Devices forming parts of regulatory systems for providing an output in the form of rectilinear motion with an input of both rotary and rectilinear motion
    Patent number: 4760864
    Abstract: A device for transmitting simultaneously to two parallel rods a motion with a single degree of freedom as a longitudinal translational motion from a sleeve surrounding the rods and which is itself subject to first and second degrees of freedom, a translational and a rotary motion, which includes a plate interconnecting the ends of the parallel rods, the plate lying perpendicularly to the axis of translational motion of the rods, and a connecting mechanism between the plate and the sleeve such that the connecting mechanism is adapted for transmitting only the translational motion to the plate.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: August 2, 1988
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs D'Aviation "S. N. E. C. M. A."
    Inventor: Henry R. Leclerc
  • Compound seal with pressure equalization aperture
    Patent number: 4681327
    Abstract: A compound seal for affecting a seal on a translating shaft movable within a sleeve to separate high pressure and low pressure zones. The compound seal includes a sealing member and a clamping member disposed in a groove formed in one of the elements. The sealing member defines sealing sides which cooperate with one of the sides of the grooves and with the other of the elements. The clamping member cooperates with the bottom and the high pressure side of the groove, and with the sealing member so as to exert a force thereon extending substantially along the bisector of an angle defined by the sealing sides.
    Type: Grant
    Filed: November 25, 1986
    Date of Patent: July 21, 1987
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation "S.N.E.C.M.A."
    Inventors: Guy d'Agostino, Andre Dhainaut, Daniel G. A. Kettler, Henry R. Leclerc