Pipeline padding machine and method

Details Pipeline padding machine and method Pipeline padding machine and method

1987-06-08

1989-08-29

Crowder, Clifford D.

Classifying, separating, and assorting solids

Sifting

Combined type

371425, 209241, 209247, 209257, 209420, E02F 522

Patent

active

048614610

ABSTRACT:
A pipeline padding vehicle for supplying earth of a fine consistency to cover and pad a pipeline disposed in a trench has a longitudinal conveyor, a vibrating screen to receive earth from the conveyor, and a padding material discharge conveyor beneath the screen to receive material therefrom mounted to pivot about a vertical axis from a position in which it is longitudinally aligned with the vehicle frame to a position transverse of the frame. A sub-frame mounts the vibrating screen and discharge conveyor on the vehicle for fore and aft swinging movement about a generally horizontal axis transverse to the longitudinal extent of the vehicle frame.

REFERENCES:
patent: 2947096 (1960-08-01), Cummings et al.
patent: 3402816 (1968-09-01), Taylor
patent: 3701422 (1972-10-01), Downey
patent: 4591432 (1986-05-01), Martl
patent: 4633602 (1987-01-01), Layh et al.
patent: 4664791 (1987-05-01), McClain et al.

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