Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive – Plural elements selectively braked
Reexamination Certificate
2005-10-18
2005-10-18
Marmor, Charles A (Department: 3681)
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
Plural elements selectively braked
C475S269000, C475S275000, C475S276000, C475S277000, C475S278000, C475S282000, C475S288000, C475S311000, C192S051000
Reexamination Certificate
active
06955627
ABSTRACT:
A multiple speed transmission capable of producing five underdrive gear ratios, one direct drive ratio, four overdrive ratios, and four reverse ratios includes four interconnected planetary gearsets, multi-plate clutches and brakes controlling the gearset elements, and a coupler that changes between forward drive and reverse drive by holding and releasing alternate gearset components against rotation on the transmission case. The transmission in combination with a single-speed transfer case having either an on-demand transfer clutch, or a full-time all-wheel drive system, are formed in an integrated package.
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Hammond Matthew
Thomas Steven
Ford Global Technologies LLC
Kelley David B.
Le David D.
MacMillan Sobanski & Todd
Marmor Charles A
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