Clutch of an automatic transmission

192 clutches and power-stop control – Clutches – Operators

Reexamination Certificate

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C188S071500

Reexamination Certificate

active

07578377

ABSTRACT:
A clutch or a brake of an automatic transmission comprises a plurality of main plates, a plurality of friction plates that are disposed alternatively to the plurality of main plates, and a piston selectively pressurizing the plurality of main plates, wherein each of the plurality of friction plates includes a bent portion, the piston includes a convex portion, and at least one of the bent portions is arranged in substantially parallel with the convex portion.

REFERENCES:
patent: 3765514 (1973-10-01), Harrison
patent: 4356901 (1982-11-01), Koehler et al.
patent: 4856635 (1989-08-01), Vlamakis

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