Road structure – process – or apparatus – Process – In situ treatment of earth or roadway
Patent
1985-02-05
1986-02-18
Leppink, James A.
Road structure, process, or apparatus
Process
In situ treatment of earth or roadway
404 95, E01C 2100, E01C 2306, E01C 2314
Patent
active
045711178
ABSTRACT:
An ice road is formed over snow-covered terrain by traversing a pair of rearwardly converging snow gathering blades over the snow-covered terrain to form a continuous snow ridge. The top of the ridge is leveled with a leveling blade. A heater comprising an inclined heated plate and a plurality of downwardly depending fore-to-aft extending vanes is passed along the ridge to melt some of the snow therein and form a slush of water and snow of generally uniform depth and width, and of a temperature of about 32.degree. F. The slush is allowed to at least partially freeze while confined beneath a horizontal unheated plate which shapes the ice road. Freezing is completed upon exposure of the ice road to ambient air. The vanes are angled relative to the direction of travel and contain apertures to promote mixing of the water and snow as melting progresses.
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Johnson, administratrix by Marie
Johnson, deceased Paul
Leppink James A.
Letchford John F.
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