Machine element or mechanism – Gearing – Interchangeably locked
Reexamination Certificate
2011-03-01
2011-03-01
Lewis, Tisha D (Department: 3655)
Machine element or mechanism
Gearing
Interchangeably locked
C192S084600, C192S09300C
Reexamination Certificate
active
07895913
ABSTRACT:
A power transmission device for a motor vehicle includes a clutch for transferring torque between first and second shafts. A clutch actuation system includes a drive member and a cam member in cooperation with one another. The drive member is driven by an electric motor and includes first and second rollers rotatably mounted thereon. The cam member includes first and second circumferentially extending channels, each having a continually reducing radius. The first and second channels are separate from and overlap one another. The first roller is positioned within the first channel to engage the drive member and the cam member. The second roller is positioned within the second channel to engage the drive member and the cam member such that relative rotation between the drive member and the cam member translates the cam member along an axis of relative rotation to vary the force applied to the clutch.
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Mizon Richard
Zalewski John D.
Harness & Dickey & Pierce P.L.C.
Lewis Tisha D
MAGNA Powertrain USA, Inc.
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