Combination tank car valve skid and valve seat in which end port

Details Combination tank car valve skid and valve seat in which end port Combination tank car valve skid and valve seat in which end port

1979-07-16

1980-11-18

Cline, William R.

Valves and valve actuation

With correlated flow path

Tank

137350, 1373825, 105358, F16K 3500, B61D 500

Patent

active

042341590

ABSTRACT:
In a bottom operable tank car lading valve assembly, a combination skid and lading valve seat for the lading valve closure is provided, which is attached to the tank car universal flange with mechanical fasteners. The valve seat portion extends inwardly and upwardly from the universal flange and includes a machined seat. The skid portion extends upwardly and outwardly from the universal flange, forming a circumferential taper, and the upper portion abuts the bottom of the tank. The outer end of the skid is connected to the tank with fasteners which do not require stress relieving of the tank body. The skid portion protects the lading valve closure and the lading valve seats against impacts which might normally cause unseating of the valve closure and escape of the lading in the absence of the skid portion.

REFERENCES:
patent: 928924 (1909-07-01), Ames
patent: 1500918 (1924-07-01), Bolton et al.
patent: 3981481 (1976-09-01), Reedy et al.
patent: 4121614 (1978-10-01), Reedy
patent: 4158453 (1979-06-01), Reedy

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