Fluid handling – Processes
Patent
1976-08-23
1978-02-21
Nilson, Robert G.
Fluid handling
Processes
521695, 137362, 137593, E03F 100
Patent
active
040746844
ABSTRACT:
A system and method for protecting a building against flooding caused by the overflow of a liquid from a liquid drain line into the building to which the drain line is connected. A floor drain, connected to a drain line, is connected in a watertight manner to a vessel having a hollow interior which rises a preselected distance above the floor drain to permit a liquid overflowing the floor drain to rise in the vessel. The vessel is vented to atmosphere a preselected distance above the floor drain to permit liquid in the hollow interior to recede through the floor drain as the overflow subsides. The vessel may contain a drain hole therein near the floor which can be selectively opened or closed to permit a liquid on the floor to be drained through the floor drain. The vessel employed may be a conventional ceiling supporting column. The vessel may be vented through a vent line which communicates with the atmosphere outside of the building to prevent the escape of odors from the vessel inside of the building and to provide additional liquid overflow protection. A ceiling supporting column may form the vessel.
REFERENCES:
patent: 1577039 (1926-03-01), Lafin
patent: 1762190 (1930-06-01), Noe
patent: 2049340 (1936-07-01), Van der Horst
patent: 2327602 (1943-08-01), Kesteloot
patent: 2517195 (1950-08-01), Gaspar
patent: 3229707 (1966-01-01), Suchan
Miller Jr. Maurice L.
Nilson Robert G.
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