Patents by Inventor Daniel Maingaud

Daniel Maingaud 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).

  • Fluid coupling apparatus, especially for a motor vehicle transmission
    Patent number: 5904231
    Abstract: The invention proposes a fluid coupling apparatus in which the turbine wheel (28) is coupled in rotation to a shaft (34) through an interposed hub (36) made in one piece in sheet metal, which comprises an internally toothed sleeve portion (70) and an externally splined cylindrical skirt portion (66), for coupling together in rotation the hub (36) and an output member (60) of a lock-up clutch (16) of the fluid coupling apparatus (10).
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: May 18, 1999
    Assignee: Valeo
    Inventors: Rabah Arhab, Daniel Maingaud
  • Process for the assembly of a locking clutch for a hydrokinetic coupling device, especially for a motor vehicle, a corresponding locking clutch and a hydrokinetic coupling device comprising such a locking clutch
    Patent number: 5826690
    Abstract: A locking clutch has a piston which is movably mounted axially in relation to a fixed wall and rotationally connected to the wall by tongues. For coupling the tongues to the piston, an attachment has a first portion, which is fixed to the side of the tongues that is opposite to the piston, and a second portion, which to engage the first portion, only requires attachment action on the side of the piston.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: October 27, 1998
    Assignee: Valeo
    Inventors: Daniel Maingaud, Rabah Arhab
  • Torsion damper for a lock-up clutch, and a lock-up clutch having such a torsion damper
    Patent number: 5590750
    Abstract: The torsion damper for a lock-up clutch (4) comprises two coaxial parts (40, 60) which are movable with respect to each other against circumferentially acting springs (50), namely an input part in the form of a guide ring (40) and an output part (60) called a damper plate, in which the guide ring (40) comprises a retaining portion (42, 142 . . . ) and engagement portions (45, 145 . . . ) for the external retention of the springs (50) and for their engagement, respectively, while the damper plate (60) also has engagement portions (65, 165 . . . ) for engagement with the springs (50). The damper plate (60) has a retaining portion (61, 161 . . . ) in the form of a half shell, the engagement portions of the damper plate (60) are carried by the said retaining portion of the damper plate (60), and the retaining portions of the guide ring (40) and of the damper plate (60) are offset axially with respect to each other.
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: January 7, 1997
    Assignee: Valeo
    Inventors: Michel Graton, Fabrice Tauvron, Rene Billet, Rabah Arhab, Michel Ginaldi, Daniel Maingaud