Fluid handling – Siphons – Plural
Patent
1978-07-05
1979-10-23
Michalsky, Gerald A.
Fluid handling
Siphons
Plural
52 16, 137140, 137142, 137357, F04F 1002
Patent
active
041717090
ABSTRACT:
An apparatus for removing water from a ponding area of a flat roof having a run-off system which is no longer operable to drain water from the ponding area which comprises a structure for directing a quantity of the run-off water flowing in the run-off system as a result of the commencement of a rain condition or the like into a priming chamber, a structure for displacing water from the priming chamber back into the run-off system in such a way as to establish a negative pressure condition within the priming chamber, and a structure for communicating the negative pressure condition to an end of a siphon hose at a vertical level below the level of the ponding area, the other inlet end of which is disposed in water sucking relation to the ponding area to thereby prime the siphon hose and commence the flow of water from the ponding area which flow after the cessation of the rain condition or the like continues until the water is substantially removed from the ponding area.
REFERENCES:
patent: RE28491 (1975-07-01), Kundert
patent: 831817 (1906-09-01), Ackley
patent: 929250 (1909-07-01), Reynolds
patent: 2307324 (1943-01-01), Larson
patent: 2313855 (1943-03-01), Wiggins
patent: 3757812 (1973-09-01), Duncan
patent: 4059126 (1977-11-01), Nickerson
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