Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive – Plural elements selectively braked
Reexamination Certificate
2008-07-22
2008-07-22
Estremsky, Sherry (Department: 3681)
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
Plural elements selectively braked
C475S284000, C475S286000, C475S288000, C475S290000
Reexamination Certificate
active
07402119
ABSTRACT:
A transmission can be provided which achieves multiple speeds while maintaining good balance of gear ratio steps between gears by having a first clutch which selectively connects a first intermediate output member and a fourth rotating element RE4together, a second clutch which selectively connects an input shaft and a second rotating element RE2together, a third clutch which selectively connects the first intermediate output member and a first rotating element RE1together, a fourth clutch which selectively connects the input shaft and the first rotating element RE1together, a fifth clutch which selectively connects a second intermediate output member and the first rotating element RE1together, a first brake which selectively holds the first rotating element RE1to a transmission case, and a second brake which selectively holds the second rotating element RE2to the transmission case.
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Abe Akiharu
Honda Atsushi
Inoue Yuji
Kamada Atsushi
Nozaki Kazutoshi
Estremsky Sherry
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Toyota Jidosha & Kabushiki Kaisha
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