Hydraulically-powered material spreader

Details Hydraulically-powered material spreader Hydraulically-powered material spreader

1984-03-26

1985-11-26

Leppink, James A.

Road structure, process, or apparatus

Process

404 79, 404 95, 404101, 404108, 404110, 60456, 165 1, 165185, E01C 1920, F28D 2100

Patent

active

045552002

ABSTRACT:
A material spreader for spreading a topping material over a wet concrete surface utilizes a pair of hoppers which are driven back and forth on a bridge support spanning the surface. A gasoline engine mounts above the hoppers and furnishes power for a reversibly controllable hydraulic hopper drive motor. The motor is part of a hydraulic system in which the hydraulic fluid is cooled by using both a hopper wall as well as the flowing material being spread as heat sinks.

REFERENCES:
patent: 1296124 (1919-03-01), Schettler
patent: 2361249 (1944-10-01), Venable
patent: 3487431 (1969-12-01), Forkner
patent: 3751174 (1973-08-01), Layton
patent: 3874807 (1975-04-01), Puckett et al.
patent: 3907451 (1975-09-01), Fisher et al.
patent: 4349294 (1982-09-01), Allen
patent: 4411554 (1983-10-01), Gratzfeld

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