192 clutches and power-stop control – Vortex-flow drive and clutch – Including drive-lockup clutch
Reexamination Certificate
2005-12-14
2008-01-29
Wright, Dirk (Department: 3681)
192 clutches and power-stop control
Vortex-flow drive and clutch
Including drive-lockup clutch
Reexamination Certificate
active
07322453
ABSTRACT:
In a lockup clutch assembly for use in a torque converter, a friction lining attached to one of a clutch piston and a front cover of the torque converter is divided into an outer-circumference-side friction lining and an inner-circumference-side friction lining. The outer-circumference-side friction lining contains as a filler diatomaceous earth in a higher proportion than the inner-circumference-side friction lining.
REFERENCES:
patent: 4469206 (1984-09-01), Motomura et al.
patent: 57-140920 (1982-08-01), None
patent: 5-99297 (1993-04-01), None
Fujii Tamotsu
Gu Xiaoming
Kinoshita Yoshio
Kinpara Hiroyuki
Kitahara Shun
Crowell & Moring LLP
NSK - Warner K.K.
Wright Dirk
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