192 clutches and power-stop control – Vortex-flow drive and clutch – Including drive-lockup clutch
Reexamination Certificate
2005-12-05
2009-06-16
Bonck, Rodney H (Department: 3655)
192 clutches and power-stop control
Vortex-flow drive and clutch
Including drive-lockup clutch
C192S10700R, C029S592000
Reexamination Certificate
active
07546913
ABSTRACT:
The present invention provides a lock-up clutch mechanism for a torque converter, comprising a lock-up clutch to which a friction material having a friction surface is secured and a front cover having an engagement surface with which the friction surface is engaged when the friction surface is urged in an axial direction and in which the friction surface of the friction material has a configuration including a protruded area protruding in the axial direction.
REFERENCES:
patent: 1934109 (1933-11-01), Wemp
patent: 2180086 (1939-11-01), Kraft
patent: 5065853 (1991-11-01), Fujimoto et al.
patent: 6123178 (2000-09-01), Hinkel
patent: 6336540 (2002-01-01), Boule et al.
patent: 2004/0050646 (2004-03-01), Matthes et al.
patent: 2007/0289830 (2007-12-01), Suzuki et al.
patent: 2004-011710 (2004-01-01), None
Fujii Tamotsu
Maruo Kenji
Takabayashi Hideaki
Bonck Rodney H
Miles & Stockbridge P.C.
NSK-Warner K.K.
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