Tank car manway cover

Fluid handling – With casing – support – protector or static constructional... – Vehicle

Reexamination Certificate

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Details

C105S358000, C220S830000

Reexamination Certificate

active

07131455

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.

REFERENCES:
patent: 1165736 (1915-12-01), White
patent: 1487518 (1924-03-01), Nichols et al.
patent: 1603277 (1926-10-01), Gilpin
patent: 1606524 (1926-11-01), Gilpin
patent: 1665608 (1928-04-01), Schnneidier et al.
patent: 1786747 (1930-12-01), Gilpin
patent: 1896367 (1933-02-01), Mussey et al.
patent: 1896616 (1933-02-01), Gillican
patent: 3212824 (1965-10-01), Emery et al.
patent: 3786955 (1974-01-01), Mowatt-Larssen
patent: 6076471 (2000-06-01), Burian et al.
patent: 6595716 (2003-07-01), VanDeVyvere et al.

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