Title:
Vehicle Transport Pipeline Pumping System
Vehicle Transport Pipeline Pumping System
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Abstract
Booster pump devices for maintaining air flow through a conduit system for sweeping vehicles along the path defined by the conduit operate in full flow fashion such as tends to create reverse flow of air in the conduit within those sections between the inlet and outlet connections of the pump with the conduit. An overhead suspended air control plate is provided for each section movable incident to vehicle approach from a closed position blocking the section to an upwardly swung open position allowing the vehicle to pass beneath it. The plate is balanced by forces acting upon it to stabilize in the open position until the vehicle passes beyond it whereupon the plate automatically returns to closed position.
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Date Issued
4/12/1977
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Text
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Patent