Patents by Inventor Leonce E. R. Rogier

Leonce E. R. Rogier 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: 4363383
    Abstract: A brake having axially-expanding brake shoes, comprises an actuating block radially located in a peripheral annular groove formed in a rotating member. The actuating block possesses along its axis, a plurality of cylinders in which slide pistons which apply the brake shoes against the braking surfaces formed by the opposite radially-extending faces of the groove.According to the invention, the actuating block comprises a single, solid, center support plate, and the ends of the cylinders project axially over the transverse faces of this support plate.
    Type: Grant
    Filed: November 15, 1979
    Date of Patent: December 14, 1982
    Assignee: Societe Anonyme Francaise du Ferodo
    Inventor: Leonce E. R. Rogier
  • Patent number: 4351885
    Abstract: A method of providing an improved friction surface and a friction element having such an improved friction surface are disclosed. A surface of a metallic friction element, e.g. a brake pad or a brake disc or drum, is metal-sprayed with a metallic substance which defines asperities the average roughness Ra of which ranges between 3 and 60 microns. Preferably, at least some of the asperities have heights ranging between 20 and 40 microns for a base width between 0.5 and 1 mm.
    Type: Grant
    Filed: October 3, 1979
    Date of Patent: September 28, 1982
    Assignee: Societe Anonyme Francaise du Ferodo
    Inventors: Jean-Claude Depoisier, Leonce E. R. Rogier