Patent ID: 6877750

Claim:
A drive assembly for a mixer having a motor assembly and a seal pedestal, comprising: a concentric speed reducer having a first end and a second end, with the first end adapted to be rigidly mounted to the motor assembly and the second end adapted to be rigidly mounted to the seal pedestal; a first flange at the first end of the speed reducer; a second flange at the second end of the speed reducer; a cylindrical cover that has an inner surface that defines an inner diameter and that substantially surrounds the speed reducer and substantially extends from the first end of the speed reducer to the second end of the speed reducer; a first elastomeric ring disposed in between the first flange and the inner surface of the cover to support the cover; and a second elastomeric ring disposed in between the second flange and the inner surface of the cover to support the cover wherein the first and second flanges and the cylindrical cover all remain stationary with respect to the seal pedestal, wherein the second flange comprises a shoulder with a projection having an outer diameter greater than the inner diameter of the cover, so that the cover is restrained from axial movement in one direction by the projection.