Stationary standby sand spreading unit for roadways

Details Stationary standby sand spreading unit for roadways Stationary standby sand spreading unit for roadways

1994-07-08

1996-08-06

Morano, S. Joseph

Track sanders

Fluid delivery

291 47, 222394, 239650, 239382, B61C 1510, B60B 3900

Patent

active

055427197

ABSTRACT:
A standby sanding unit for emergency sanding of icy roadways has a plurality of sand hoppers that are connected to a tank holding air under pressure. The hoppers have hopper type bottoms that have nozzles attached to the bottoms so that when air under pressure is provided to the upper portions of the tank, sand will be discharged out through the nozzles. The air pressure tank has valves that control the flow of air under pressure to the hoppers, when needed.

REFERENCES:
patent: 460529 (1891-09-01), Evans
patent: 1165331 (1915-12-01), Gray
patent: 4099688 (1978-07-01), Jayne
patent: 4747627 (1988-05-01), Shigeura et al.
patent: 4968069 (1990-11-01), Jensen

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