System and filter for preventing contamination of particulate ma

Details System and filter for preventing contamination of particulate ma System and filter for preventing contamination of particulate ma

1988-05-20

1990-02-20

Peters, Jr., Joseph F.

Conveyors: fluid current

Intake to fluid current conveyor

Load receptacle type

55361, 105358, B65G 5324

Patent

active

049021737

ABSTRACT:
A system for preventing contamination of particulate material in a railroad hopper car during transportation and unloading of the material from the car, comprising transporting the material in the railroad hopper car with a filter on each of the various inlet and outlet openings of the car, then upon reaching the point for unloading, applying a vacuum to draw the material out of the car through one spout with its filter removed, while leaving the filters in place on the other openings in the car to prevent contamination of the product from external sources during transportation and unloading. The preferred filter for the railroad car spouts has a frame, a conical filter bag, and a filter bag support ring for mounting on a spout on the car.

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