Patent ID: 7108196
Filing Date: 2006-09-19
Classification: E01H

Abstract:
1. The method of treating the surface of a roadway by depositing snow/ice treatment liquid onto the surface of the roadway as a liquid quantity per unit of roadway length from a vehicle moving at a given forward velocity and direction having leftward and rightward pavement engaging wheels generally exhibiting wheel tracks spaced apart along a vehicle width and a support portion; comprising the steps of: (a) supporting a tank contained source of said snow/ice treatment liquid at said vehicle support portion; (b) providing at least one streamer nozzle having an input, a nozzle axis and an output with a nozzle effective diameter; (c) mounting said at least one streamer nozzle generally about the region established by said vehicle width in an orientation wherein said nozzle output is rearwardly directed said nozzle axis extends substantially parallel with said roadway surface and vehicle forward direction and is located in spaced adjacency with said roadway surface; (d) providing a fluid transfer assembly including a drivable pump assembly and extending in fluid transfer communication between said tank contained source of said snow/ice treatment liquid and said streamer nozzle input; (e) monitoring the forward velocity of said vehicle; and (f) driving said pump assembly in correspondence with said monitored forward velocity and said nozzle effective diameter at a pump speed effective to express said snow/ice treatment liquid from said nozzle with a fluid flow velocity vector substantially parallel with said roadway surface and corresponding with said vehicle forward velocity.