Mining or in situ disintegration of hard material – Ice-working devices – Relatively moving cutter
Patent
1978-08-07
1980-02-05
Pate, III, William F.
Mining or in situ disintegration of hard material
Ice-working devices
Relatively moving cutter
37 43K, 51177, 299 41, 299 79, E01H 509
Patent
active
041869672
ABSTRACT:
A machine that mechanically removes ice from surfaces such as driveways, sidewalks and parking lots. The machine includes multiple horizontal rotary discs with depending chippers which strike the ice and pulverize it. The machine is propelled on wheels which maintain a gap between the chippers and the surface being cleaned. The rotary discs are often driven by a motor through a series of pulleys.
REFERENCES:
patent: 1647066 (1927-10-01), Westmar
patent: 2156066 (1939-04-01), Royer et al.
patent: 2560443 (1951-07-01), Hosford
patent: 3102372 (1963-09-01), Vezner
patent: 3496681 (1970-02-01), Oswald
patent: 3504434 (1970-04-01), Thomsen
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