Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1977-02-23
1978-10-24
Hart, Charles N.
Gas separation
Means within gas stream for conducting concentrate to collector
4211, 55199, 137561A, B01D 1900
Patent
active
041219147
ABSTRACT:
A drainage piping system for discharging soil water and waste water from various plumbing fixtures comprises a vertical main pipe and lateral branch pipes connected to the fixtures. To provide a single-pipe confluence system for installation in medium-sized or high buildings without employing a vent pipe to be arranged along the vertical main pipe, the main pipe incorporates at least one twisted pipe portion having an axis helically deviating from the axis of the main pipe.
REFERENCES:
patent: 1186280 (1916-06-01), Carson
patent: 1459585 (1923-06-01), Felton
patent: 2499900 (1950-03-01), Bouldin
patent: 3968815 (1976-07-01), Legg et al.
Ishihara Takeshi
Kigawa Tomio
Burks Richard W.
Farley Joseph W.
Hart Charles N.
Kubota Ltd.
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