Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1982-08-02
1984-08-28
Parker, Roscoe V.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
B24B 2304
Patent
active
044675658
ABSTRACT:
A rotary orbital sander including a motor housing enclosing a motor, a drive shaft rotatable by the motor, 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, a throttle valve for regulation of pneumatic medium flow to the motor, 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.
REFERENCES:
patent: 2796704 (1957-06-01), Moore
patent: 3205622 (1965-09-01), Leveque
patent: 3287859 (1966-11-01), Leveque
patent: 3520090 (1970-07-01), Lee
patent: 3857206 (1974-12-01), Heffran, Jr.
Giardino David A.
Groshans Joseph R.
Wallace William K.
Chicago Pneumatic Tool Company
Parker Roscoe V.
Rudy Stephen J.
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