Hopper car outlet gate valve
AssigneeSalco Products, Inc.
InventorsWilliam F. Burian, Andrew C. Crouse, Daniel T. Stevenson, Alex V. Degutis
Life of this patent
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AssigneeSalco Products, Inc.
InventorsWilliam F. Burian, Andrew C. Crouse, Daniel T. Stevenson, Alex V. Degutis
Estimating the term…
A pneumatic outlet gate of a railroad hopper car has an valve member mounted for rotation in a discharge tube between open and closed positions. The valve member is an arcuate segment terminating laterally at edge faces. The edge faces are angled such that in the upper half of the discharge tube they always slant downwardly from the surface of the tube, while in the lower half of the discharge tube the edge faces face downwardly. An arrangement of stops and abutments prevents rotation of the valve member to a location where the edge faces could trap lading against the discharge tube. Accordingly, the edge faces are self-emptying.
An outlet gate for a railroad hopper car, comprising:
In an outlet gate for a railroad hopper car of the type comprising first and second slope sheets having spaced lower edges defining a discharge opening, first and second end walls connected to the slope sheets, a generally cylindrical discharge tube attached to the slope sheets near the lower edges for receiving lading from the discharge opening, a valve member disposed in the discharge tube and having end portions mounted for rotation in the end walls between a closed position in which the valve member blocks the discharge opening and an open position in which flow is permitted through at least a portion of the discharge opening, the valve member comprising an arcuate segment bounded by edge faces, the improvement comprising:
Dependencies are inferred from the claim text.