Eduction pipe with guide sleeve and seal to draw liquid from the

Details Eduction pipe with guide sleeve and seal to draw liquid from the Eduction pipe with guide sleeve and seal to draw liquid from the

1977-08-24

1978-09-19

Scherbel, David A.

Dispensing

With discharge assistant

Fluid pressure

137590, 220 85S, 222464, B61D 500, B65D 8314

Patent

active

041147839

ABSTRACT:
In accordance with the present invention a low profile sump is provided in the bottom of a railway tank car which does not extend below the tank sufficiently far as to require a skid. The eduction pipe includes a lower fixed eduction pipe portion which extends into the lower portion of the sump, and an upper movable eduction pipe portion which telescopically engages the lower eduction pipe portion for a distance at least equal to the distance that the tank top moves downwardly relative to the tank bottom when the car is impacted. Preferably the movable upper eduction pipe telescopes within the fixed, lower eduction pipe. Preferably a seal is provided between the fixed and movable eduction pipe portions to prevent air leakage into the eduction pipe during the final stages of unloading.

REFERENCES:
patent: 1748185 (1930-02-01), Nichols et al.
patent: 1894655 (1933-01-01), Auchincloss
patent: 2083776 (1937-06-01), Ferguson
patent: 2294543 (1942-09-01), Ellis
patent: 2767890 (1956-10-01), Carter

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