Scabbler for scabbling floors contaminated with hazardous materi

Details Scabbler for scabbling floors contaminated with hazardous materi Scabbler for scabbling floors contaminated with hazardous materi

1988-06-01

1990-07-10

Dang, Hoang C.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Floor-working

29 8114, 173 24, 299 64, B25D 904, B25D 1732

Patent

active

049402897

ABSTRACT:
A manually steerable machine for scabbling areas which are relatively inaccessible to larger machines is disclosed. Three pneumatically operable piston and cylinder assemblies with bits are mounted on a plate which is mounted in vertically movable relationship on a frame, the assemblies being disposed at the apices of a triangle, one of the apices being at the forward end of the frame and the other apices being rearwardly of the one of the apices. A tiltable handle extends from the rear end of the frame and upwardly from the frame and includes an air manifold and an air valve for supplying compressed air to the assemblies through hoses. A pair of wheels at the rear of the frame support the frame when the pistons are not operating. A skid plate is attached to the bottom of the frame, and the bits are encircled by a flexible skirt extending downwardly from the frame. A vacuum hose connector has its lower end at the bottom of the frame and between the bits to collect dust.

REFERENCES:
patent: 2303726 (1942-12-01), Dettloff et al.
patent: 2553435 (1951-05-01), Briese
patent: 2562899 (1951-08-01), Finn
patent: 3366420 (1968-01-01), Young
patent: 4594759 (1986-06-01), Ikeda
Pentex Inc., "The Moose from Pentek", Nov. 1985, 3 pages.
"MacDonald Scabblers", MacDonald Air Tool Corp., 4 pages.

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