Patent ID: 6905399
Filing Date: 2005-06-14
Classification: B24B

Abstract:
1. A conditioning mechanism comprising: a rotor assembly; a conditioning element mounting assembly having a lower surface adapted to receive a conditioning element; a sheave having a gas passage formed therethrough; a stem extending from the sheave along an axis of rotation of the sheave and providing an axial bearing surface for the conditioning element mounting assembly; a rotor body disposed concentrically to the stem and coupled to the sheave; wherein the conditioning element mounting assembly further comprises: a seal disposed between the rotor assembly and the conditioning element mounting assembly and bounding one surface of an expandable plenum defined between the rotor assembly and the conditioning element mounting assembly; and a spring disposed between the rotor assembly and the conditioning element mounting assembly and adapted to bias the mounting flange towards the rotor assembly, wherein the spring is retained between a flange of the sleeve extending outwardly from an end of the sleeve opposite the mounting flange and an inwardly disposed flange extending from the rotor body and circumscribing the sleeve.