Tank car manway cover
AssigneeUnion Tank Car Company
InventorsBlaise A. Horban, Carl L. Carney, Alan N. Henzi
Life of this patent
Estimating the term…
Abstract
A manway cover assembly for a railroad tank car. The manway cover assembly is moveable between a closed position in covering relationship with a manway nozzle and an open position that permits access into the tank car. The manway cover assembly includes a manway cover having a generally inwardly convex central portion and a generally flat outer annular portion having an inwardly facing recess formed therein for receipt of an upper edge of the manway nozzle. A generally flat round weather shield member is attached to the outer ring member in covering relationships with the central inwardly convex portion of the manway cover member.
Claims10
In combination with a railroad tank that includes a tank body having an internal pressure above atmospheric pressure and a manway nozzle that communicates with a manway access opening in an upper portion thereof, a manway cover assembly moveable between a closed position in covering relationship with the manway nozzle and an open position permitted access into the manway nozzle;
- said manway cover assembly comprising:
- a manway cover member pivotally attached to the manway nozzle for movement between a closed and open position, said manway cover member including a generally inwardly convex central portion that extends into the manway nozzle and including an inwardly facing recess adapted to receive an upper edge of the manway nozzle when said cover member is in said closed position.
In combination with a railroad tank that includes a tank body having an internal pressure above atmospheric pressure and a manway nozzle that communicates with a manway access opening in an upper portion thereof, a manway cover assembly moveable between a closed position in covering relationship with the manway nozzle and an open position permitted access into the manway nozzle;
- said manway cover assembly comprising:
- a manway cover member pivotally attached to the manway nozzle for movement between a closed and open position, said manway cover member including
- a generally inwardly convex central portion that extends into the manway nozzle, and
- an inwardly facing recess adapted to receive an upper edge of the manway nozzle when said cover member is in said closed position;
- a sealing gasket positioned in the recess;
- an outer ring member attached to an outer surface of a generally flat annular portion of said cover member, said outer ring member having a plurality of open portions spaced around said outer ring member for receipt therein of locking bolts when the manway cover is in its closed position.
Dependencies are inferred from the claim text.