Patent ID: 6347985
Filing Date: 2002-02-19
Classification: B24B,B24D

Abstract:
A vacuum driven sander comprising, a housing formed from a rigid material to include internal air inlet passages that are connected to a turbine chamber wherein a stanchion is centered that has a bearing assembly cavity formed therein, and air exhaust passages leading from said turbine chamber to vent through a housing top section; a vacuum hose coupling with a pivotal mounting for connection into said housing top section to receive the vacuum air flow exhausted from said turbine chamber; a turbine and a turbine bearing assembly for mounting in said bearing assembly cavity, with said turbine to turn therein; an eccentric connected to be turned by said turbine; a sanding pad that includes, on an outer face, sanding material couplers, whereto a section of a sanding material is releasably secured, and includes, on an inner face, a plurality of flexing couplers for joining said sanding pad to an undersurface of said housing top section that are secured to said sanding pad inner face, suspending said sanding pad from said housing top section, and with said sanding pad including a bearing for receiving an off center end of said eccentric whereby turning of said turbine and eccentric will impart an orbital motion to said sanding pad; and a port formed through said housing outer surface, passing through said stanchion, and into said bearing assembly cavity between a pair of turbine shaft bearings to pass outside air at ambient pressure therethrough.