Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1987-10-01
1988-11-08
Parker, Roscoe V.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51170T, 51273, B24B 2300
Patent
active
047826320
ABSTRACT:
A drywall sander comprises an electric motor and a rotary sanding head mounted at opposite ends of an arm so that the machine is balanced when the user grasps the arm just in front of the motor. The sanding is pivotally mounted on the arm so that it self-aligns with the surface being sanded and is connected to the motor by a flexible drive. The abrasive surface in said sanding head is surrounded by an enclosure to catch the dust.
REFERENCES:
patent: 2612648 (1952-10-01), Lagant
patent: 2722090 (1955-11-01), Hasselquist
patent: 3722147 (1973-03-01), Brenner
patent: 3948005 (1976-04-01), Whitsett
patent: 4204292 (1980-05-01), Lester et al.
patent: 4546574 (1985-10-01), Blossick et al.
patent: 4663796 (1987-05-01), Helling
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