Apparatus for grinding floor surfaces and/or cutting grooves in

Details Apparatus for grinding floor surfaces and/or cutting grooves in Apparatus for grinding floor surfaces and/or cutting grooves in

1997-06-20

1998-08-04

Rose, Robert A.

Abrading

Frame or mount

Portable abrader

451344, 451350, 125 1301, 125 4, 125 5, B24B 2706

Patent

active

057885613

ABSTRACT:
A handheld and readily maneuverable apparatus for grinding floor surfaces and/or cutting grooves in a floor formed of a hard material such as concrete, stone or the like is disclosed. The apparatus includes an elongated tube having a motor mounted at its upper end and a special rotatable abrasive head at its lower end. Rotation of the motor is coupled to the rotatable abrasive head via a flexible shaft that extends longitudinally through the elongated tube. In one form of the invention, the abrasive head includes a grinding disk that is oriented generally horizontally relative to the floor when the apparatus is in its operating orientation, and the operator can manually maneuver the apparatus so as to grind the floor surface. In an alternative form of the invention, the abrasive head includes a cutting disk that is oriented generally vertically relative to the floor when the apparatus is in its operating orientation, and the operator can manually maneuver the apparatus so as to cut grooves or enlarge cracks in the floor.

REFERENCES:
patent: 4188719 (1980-02-01), Hoff
patent: 4479302 (1984-10-01), Richter
patent: 4501332 (1985-02-01), Straayer
patent: 4604067 (1986-08-01), Roberts
patent: 5297363 (1994-03-01), Schroder et al.
patent: 5411433 (1995-05-01), Keller
patent: 5540210 (1996-07-01), Jones
Mall Tool Company Catalog No. A-3430, Apr. 1934.
Advertisement entitled "Finish Your Drywall Faster" for Model 7800 Dry Wall Sander and Model 7810 Power-Tool-Triggered Wet/Dry Vac--1994 Porter Cable Corporation.

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