초록 ▼

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 th

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.

대표청구항 ▼

A stationary distributor of discrete particles for providing such particles for use on slippery road surfaces comprising: a frame for stationarily supporting the distributor relative to a fixed surface adjacent a roadway subjected to periodic slippery conditions; an air storage tank mounted on the f

A stationary distributor of discrete particles for providing such particles for use on slippery road surfaces comprising: a frame for stationarily supporting the distributor relative to a fixed surface adjacent a roadway subjected to periodic slippery conditions; an air storage tank mounted on the frame; a plurality of hoppers mounted on the frame adjacent to said tank; a quantity of discrete particles in each of the hoppers, to at least partially fill the hoppers; an air pressure inlet connected to each hopper for receiving air pressure from the tank and exerting pressure on the particles in the hopper; and an outlet from each of the hoppers including a particle discharge nozzle for directing particles onto and across a road surface adjacent to which the tank and hoppers are mounted.