Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent
1997-04-03
1999-01-26
Bagnell, David J.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Floor-working
81 45, 30170, E04D 1502
Patent
active
058631003
ABSTRACT:
A pneumatic roofing material removing apparatus including a housing having a pair of rear wheels disposed thereon. A pneumatic motor is disposed within the housing. The pneumatic motor has a rear portion extending outwardly of the housing. The rear portion has an air hose extending outwardly therefrom. A front portion of the pneumatic motor has an actuating arm extending outwardly therefrom. A planar cutting blade is disposed within the housing and secured to a free end of the actuating arm of the pneumatic motor. An arcuate shovel is secured to the housing over the cutting blade. A handle assembly is coupled with the housing. An operation mechanism is disposed within the handle assembly. The operation mechanism is coupled with the air hose of the pneumatic motor. The operation mechanism includes an exterior hose extending outwardly therefrom for coupling with an air compressor. The operation mechanism includes an activation trigger extending outwardly of the handle assembly.
REFERENCES:
patent: 1535411 (1925-04-01), Hansen
patent: 2326514 (1943-08-01), Bard
patent: 2465192 (1949-03-01), Booth
patent: 4691439 (1987-09-01), Marra
patent: 4699430 (1987-10-01), Nichols
patent: 4858503 (1989-08-01), Dike, Jr.
patent: 5741047 (1998-04-01), Ordonez
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