Patents by Inventor Didier Hosdez

Didier Hosdez 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: 5935009
    Abstract: A tripod constant velocity universal joint comprising a housing (5) having longitudinal grooves (4) arranged in spaced relationship on a periphery thereof, and a tripod spider (2) comprising symmetrically arranged, rotationally symmetrical ball-headed trunnions (3) on which an inner ring (6) comprised of two semi-shells or made as a split ring is retained in a form-fitted manner for angular displacement, said inner ring (6) being radially surrounded by a guide element (7) with rolling elements (10) arranged between the guide element (7) and an outer ring (11) which is guided outwardly for sliding displacement in the longitudinal grooves (4), characterized in that a length of the rolling elements (10) is larger than a width of the outer ring (11), the guide element (7) as seen in longitudinal cross-section is U-shaped and comprises end flanges (8, 9) which extend radially outwards so as to project beyond an inner diameter of the outer ring 11.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: August 10, 1999
    Assignee: Ina Walzlager Schaeffler KG
    Inventors: Didier Hosdez, Piotr Olszewski
  • Patent number: 5803813
    Abstract: A tripod type constant velocity universal joint comprising an outer joint member having longitudinal recesses arranged in spaced relationship on a periphery thereof, and trunnions symmetrically arranged on a tripod spider, said trunnions located in said recesses of the outer joint member by tripod rollers mounted on rolling elements, characterized in that an inner ring formed without chip removal from sheet metal is arranged between each trunnion and respective rolling elements, the inner ring, the tripod roller and the rolling elements form a roller assembly, and the inner ring comprises at least first and second radially stepped end flanges which form radially inner stops for the rolling elements and radially outer stops for the tripod roller.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: September 8, 1998
    Assignee: Ina Walzlager Schaeffler KG
    Inventors: Didier Hosdez, Pierre Alber