Rotary and orbital sander

Details Rotary and orbital sander Rotary and orbital sander

B - Operations, Transporting

24

B

51/70

B24B 23/02 (2006.01) B23Q 5/06 (2006.01) B23Q 11/00 (2006.01) B24B 23/03 (2006.01)

Patent

CA 1217341

ROTARY & ORBITAL SANDER ABSTRACT OF THE INVENTION A rotary orbital sander including a motor housing enclosing a motor means, a drive shaft rotatable by the motor means, which drive shaft has an off-set projecting portion, a pinion gear housing affixed to the motor housing, a carrier supported upon the shaft off-set projecting portion by two parallel arranged ball bearings, a sanding pad assemblage removably attached to the carrier, intermeshing spur gears arranged on the pinion gear housing and the carrier, a handle arranged for conduction of pressurized pneumatic medium to the motor means, a throttle valve for regulation of pneumatic medium flow to the motor means, a valve in the handle for cut-off of pneumatic medium to the throttle value, and a counter-balance weight affixed to the shaft off-set projecting portion, said weight being positioned so that its center of gravity of rotation is in the same plane as the center of gravity of rotation of--the carrier, the carrier supporting bearings and a sanding pad assembly attached to the carrier-- said pinion gear housing having a circular cavity surrounding the carrier which is engageable by the carrier as it revolves, to provide rotational support for the carrier. - 1 -

433632

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