Patent ID: 6152656
Filing Date: 2000-11-28
Classification: B09B

Abstract:
A material delivery system for conveying material from a supply location at or above an area surface to a working location below the area surface, said delivery system comprising:(a) a supply hopper located at the supply location and having an inlet for receiving material to be conveyed and an outlet for discharging material;(b) an injection hopper for being mounted on a movable working arm of a self-propelled vehicle, and having an inlet for receiving material and an outlet for discharging material, the arm of the vehicle being adapted for carrying said injection hopper below the area surface to the working location, and said injection hopper including an elongate injection chute formed at said outlet thereof for delivering material exiting said injection hopper into a predetermined target area of the working location;(c) a supply line connected to the outlet of said supply hopper and to the inlet of said injection hopper for conveying material from the supply location to the working location;(d) a mixer assembly adapted for being mounted on a free end of the working arm of the vehicle proximate said injection chute for blending the material exiting said injection hopper into the predetermined target area of the working location; and(e) a return line connected to the injection hopper and to the supply hopper for conveying return air and excess material from the injection hopper back to the supply hopper.