Patent ID: 8051529
Filing Date: 2011-11-08
Classification: E01H

Abstract:
1. A material-removal system operable to remove material from a surface, the material-removal system comprising: a base plate; a plurality of wheels extending from said base plate and operable to maintain said base plate a predetermined distance from a surface from which material is to be removed; a plurality of fluid bars operable to direct a flow of high-pressure fluid toward a surface, said fluid bars being simultaneously rotatable about individual axes and overlapping one another during rotation, each one of said plurality of fluid bars includes a fluid flow channel that extends along a lengthwise direction of the fluid bar and a plurality of spray channels that are in fluid communication between the fluid flow channel and each of a plurality of spray nozzles provided on a common face of the fluid bar; and a drive mechanism operable to drive rotation of said fluid bars about said respective axes, said drive mechanism coordinating said rotation of said fluid bars such that said fluid bars do not hit one another during simultaneous rotation.