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U.S. Department of Energy
Office of Scientific and Technical Information

Pipeline padding machine and method

Patent ·
OSTI ID:5333979
This patent describes a combination within a pipeline padding supplying system for supplying earth of a fine consistency to cover and pad a pipeline disposed in a trench the combination comprising: a vehicle frame supported for travel longitudinally along a highway, or alternately along a trench; hopper means into which raw earth, containing large chunks and rocks, is supplied at one end of the frame; a longitudinally disposed conveyor, having an end disposed beneath the hopper means to receive earth from the hopper and convey the earth longitudinally toward the opposite end of the frame; vibrating screen means mounted on the frame to receive earth from the opposite end of the conveyor; a cross conveyor mounted by the frame beneath the vibrating screen means for pivotal movement about a vertical axis from a position in which it is longitudinally aligned with the vehicle from and longitudinally disposed conveyor for transport therewith when the vehicle frame is moving from one job location to another to a position crosswise to the frame and longitudinally disposed conveyor. The crosswise conveyor being of a length to have one end disposed beneath the vibrating screen means to receive screened earth therefrom and another discharge end projecting out over the trench to deliver screened earth thereto as the vehicle is moved longitudinally along the trench; and a tailings conveyor associated with the vibrating screen means to receive material screened out by the vibrating screen means, and having a discharge end located at a spaced distance from the discharge end of the cross conveyor to discharge the tailing remotely from the screened earth.
Assignee:
NOV; NOV-89-083022; EDB-90-006355
Patent Number(s):
US 4861461
Application Number:
PPN: US 7-059491A
OSTI ID:
5333979
Country of Publication:
United States
Language:
English