Roof siphon drain

Details Roof siphon drain Roof siphon drain

1981-01-19

1983-09-27

Michalsky, Gerald A.

Fluid handling

Siphons

Periodic or accumulation responsive discharge

137124, 137128, 137135, 137140, 137142, 137151, 137357, F04F 1000

Patent

active

044063008

ABSTRACT:
Apparatus for siphoning liquid such as water which accumulates in a ponding area (16) located on a flat roof (12) to a drain (14) is disclosed. The apparatus includes a first liquid conduit (21) which has one end (58) in the accumulated water and a second end (52) in drain (14). A reservoir (26) (64) accumulates a selected volume of water which is transferred from the reservoir (26) (64) by a second liquid conduit (38) to the first liquid conduit (21) such that the first liquid conduit (21) is completely filled with water suitable for initiating siphoning action of the water in ponding area (16) to drain (14). A means for controlling the flow of liquid from reservoir (26) (64) to first conduit (21) such as float valve (36) is included such that there is no transfer of liquid from reservoir 26 to first liquid conduit 21 until the selected volume of water has accumulated.

REFERENCES:
patent: Re28491 (1975-07-01), Kundert
patent: 831817 (1906-09-01), Ackley
patent: 2307324 (1943-01-01), Larson
patent: 2313855 (1943-03-01), Wiggins
patent: 3757812 (1973-09-01), Duncan
patent: 4059126 (1977-11-01), Nickerson
patent: 4168717 (1979-09-01), Rinker
patent: 4171706 (1979-10-01), Loftin
patent: 4171709 (1979-10-01), Loftin
patent: 4248258 (1981-02-01), Devitt et al.

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