Patents by Inventor Alain Leman

Alain Leman 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).

  • Device for pivotally guiding variable-pitch vanes in a turbomachine
    Patent number: 7112041
    Abstract: A device for guiding pivoting of variable-pitch vanes in a turbomachine, each vane having a pivot formed by a cylindrical axial shank which is guided in a cylindrical chimney of the casing and in a cylindrical orifice of a stationary element which surrounds the outside of the casing and which is centered and fixed relative thereto. The invention improves pivotal guidance of variable-pitch vanes.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: September 26, 2006
    Assignee: SNECMA Moteurs
    Inventors: Pierre Debeneix, Arnaud Langlois, Erick Boston, Alain Leman, Vincent Garnier, Jacques Audet