Machine element or mechanism – Gearing – Interchangeably locked
Reexamination Certificate
2007-04-17
2009-02-17
Lewis, Tisha D (Department: 3655)
Machine element or mechanism
Gearing
Interchangeably locked
C074S331000
Reexamination Certificate
active
07490526
ABSTRACT:
A dual-clutch powershift transmission for use in a motor vehicle having an engine and a driveline includes an output shaft adapted for connection to the driveline, first and second input shafts, a first engine clutch operable for establishing a releaseable drive connection between the engine and the first input shaft and a second engine clutch operable for establishing a releasable drive connection between the engine shaft and the second input shaft. A first constant-mesh gearset is driven by the first input shaft. A second constant-mesh gearset is driven by the second input shaft. A first shift clutch releasably engages the first gearset to establish a drive connection between the first input shaft and the output shaft. A second shift clutch releasably engages the second gearset to establish a drive connection between the second input shaft and the output shaft.
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Harness & Dickey & Pierce P.L.C.
Lewis Tisha D
Magna Powertrain USA, Inc.
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