Metal working – Method of mechanical manufacture – Prime mover or fluid pump making
Reexamination Certificate
2005-04-05
2005-04-05
Compton, Eric (Department: 3726)
Metal working
Method of mechanical manufacture
Prime mover or fluid pump making
C029S889610, C029S407070, C464S127000, C464S180000
Reexamination Certificate
active
06874228
ABSTRACT:
A shaft structure and at least two non-identical inserts. The shaft structure has a cavity and vibrates in response to the receipt of an input of a predetermined frequency such that at least two second bending mode anti-nodes are generated in spaced relation to one another along the longitudinal axis of the shaft structure. Each of the inserts is disposed within the longitudinally extending cavity at a position that approximately corresponds to an associated one of the anti-nodes. A method for attenuating noise transmission from a vehicle driveline is also disclosed.
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Armitage Mary Ellen
Heaton Jeffrey N.
Kurecka Donald J.
Schankin David P.
American Axle & Manufacturing Inc.
Compton Eric
Harness & Dickey & Pierce P.L.C.
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