Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive – Plural elements selectively braked
Reexamination Certificate
2005-12-20
2005-12-20
Estremsky, Sherry (Department: 3681)
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
Plural elements selectively braked
C475S278000
Reexamination Certificate
active
06976930
ABSTRACT:
A transmission assembly includes a stationary housing and a first section having a coupling member. The first section further includes a first planetary gear assembly, a second planetary gear assembly, and a third planetary gear assembly operatively disposed in the stationary housing. Each of the planetary gear assemblies includes a ring gear, at least one planet carrier having at least one planet gear, and a sun gear. The sun gears of at least the first and second planetary gear assemblies are operatively connected to the coupling member. The first section also includes an input member operatively connected to the third planetary gear assembly to drive the first section. A first stationary clutch operatively connects the coupling member to the stationary housing. A second stationary clutch operatively connects at least one of the planet carrier and the ring gear of the first planetary gear assembly to the stationary housing.
REFERENCES:
patent: 3347113 (1967-10-01), Ramsel
patent: 3863524 (1975-02-01), Mori et al.
patent: 4004473 (1977-01-01), Pearce et al.
patent: 4089238 (1978-05-01), Forster et al.
patent: 4090415 (1978-05-01), Gorrell et al.
patent: 4205563 (1980-06-01), Gorrell
patent: 4420992 (1983-12-01), Windish
patent: 4446758 (1984-05-01), Winzeler et al.
patent: 4531428 (1985-07-01), Windish
patent: 4658673 (1987-04-01), Nerstad et al.
patent: 4660439 (1987-04-01), Hiraiwa
patent: 4976670 (1990-12-01), Klemen
patent: 5098357 (1992-03-01), Asada et al.
patent: 5924951 (1999-07-01), Winzeler et al.
patent: 6626790 (2003-09-01), Raghavan et al.
patent: 2003/0130084 (2003-07-01), Kao et al.
patent: 2003/0195079 (2003-10-01), Raghavan et al.
Estremsky Sherry
Finnegan Henderson Farabow Garrett & Dunner LLP
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