Vacuum drain system

Details Vacuum drain system Vacuum drain system

1977-08-16

1982-06-08

Spitzer, Robert H.

Liquid purification or separation

Structural installation

Geographic

4345, 137205, 137236R, C02F 900

Patent

active

043338305

ABSTRACT:
A vacuum drain system having alternating ascending and descending sections in a conduit for conveying a liquid, such as waste water, to a collector tank maintained under vacuum to induce liquid flow through the conduit. At least one of the descending conduit sections is of larger cross section than an adjacent ascending section to facilitate flow of liquid through the conduit.

REFERENCES:
patent: 2271480 (1942-01-01), Gibson et al.
patent: 3211167 (1965-10-01), Clift et al.
patent: 3239849 (1966-03-01), Liljendahl
patent: 3730884 (1973-05-01), Burns et al.

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