Multi-speed transmission

Planetary gear transmission systems or components – Plural power paths to planetary gearing – Plural planetary units

Reexamination Certificate

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Details

C475S269000, C475S296000

Reexamination Certificate

active

08002664

ABSTRACT:
A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches.

REFERENCES:
patent: 6176803 (2001-01-01), Meyer et al.
patent: 6558287 (2003-05-01), Hayabuchi et al.
patent: 6984187 (2006-01-01), Biermann
patent: 6991578 (2006-01-01), Ziemer
patent: 7011597 (2006-03-01), Haka
patent: 7018319 (2006-03-01), Ziemer
patent: 7101305 (2006-09-01), Tabata et al.
patent: 7163484 (2007-01-01), Klemen
patent: 2005/0090362 (2005-04-01), Abe et al.
patent: 2006/0270513 (2006-11-01), Klemen
patent: 2006/0270516 (2006-11-01), Klemen
patent: 2008/0305917 (2008-12-01), Phillips et al.

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