Lockup clutch assembly

192 clutches and power-stop control – Vortex-flow drive and clutch – Including drive-lockup clutch

Reexamination Certificate

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Reexamination Certificate

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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

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