Patent ID: 6125558
Filing Date: 2000-10-03
Classification: B07B,E02F

Abstract:
A padding machine for separating material beside a trench by size and supplying fine size material to pad a pipeline in a trench, comprising:a frame defining an opening, a plurality of grizzly bars mounted to the frame and extending over the opening;a conveyor mounted on the frame and having a moving conveyor element moving material from a first position to the opening;at least one screen mounted to the frame below the opening for separating material falling through the opening past the grizzly bars;a screen vibrator unit for shaking the screen to facilitate the separation;the frame having a forward end, a rearward end, an underside and an upper side, the padding machine further including a wheel assembly mounted on the frame at the rearward end thereof, the wheel assembly having at least one wheel in contact with the ground and rotational about a first axis and a towing arm pivoted to the frame at the forward end thereof, the towing arm having a front end for attachment to a towing vehicle, the conveyor being a continuous conveyor for movement about a perimeter of the frame, the conveyor element having a first portion moving from the rearward end of the frame to the forward end of the frame at the underside of the frame, the first portion of the conveyor element having at least one member to engage the material and convey the material to the forward end of the machine for separation.