The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 2004
Filed:
Dec. 10, 2001
Rabah Arhab, Saint-Brice-Sous-Foret, FR;
Michel Bacher, Andilly, FR;
Alexandre Depraete, Amiens, FR;
David Forgeron, Servins, FR;
Daniel Satonnet, Paris, FR;
Norbert Termenon, Amiens, FR;
Roel Verhoog, Gournay sur Aronde, FR;
Valeo, Paris, FR;
Abstract
The invention concerns an apparatus comprising a housing ( ) with a radial wall ( ) coupled with another input shaft, a turbine wheel ( ) coupled with a hub ( ) and an output shaft; and a lockup clutch comprising a piston ( ); an annular friction disc ( ) with global radial orientation, coupled in rotation with the turbine wheel ( )/hub ( ) assembly and bearing on a first surface a first counter-track ( ) co-operating with a first friction track ( ) integral with the piston to define a first annular friction zone (Z ), and which bears on its second surface opposite to the first surface, a second counter-track ( ) co-operating with a second friction track ( ) integral with the radial wall ( ) to define a second annular friction zone (Z ). The invention is characterized in that the first and second friction zones (Z Z ) are radially offset relative to each other.