G - Physics – 05 – D
Patent
G - Physics
05
D
137/24
G05D 9/00 (2006.01) E03F 5/22 (2006.01) E03F 7/02 (2006.01)
Patent
CA 1089317
Abstract of the Disclosure A backwater tank system is provided for a building connected to a vacuum drain facility wherein the waste water of the building is drained off by gravity feed lines into a collector which is connected to a vacuum drain conduit by means of a pneumatically controlled shut-off valve that opens automatically at a specific maximum water level, and wherein a ventilated backwater tank is connected to the gravity conduit or the collector at a level above the maximum water level in the collector, the capacity of the backwater tank being large as compared with that of the collector. The shut-off valve and the pneumatic control devices therefor are disposed in or on the tank out- side the main chamber thereof and preferably in an auxiliary chamber in the tank. The tank, shut-off valve and control device form an integrated pre- assembled unit which includes an inlet connection adapted to be connected to the gravity feed line.
308447
Electrolux G.m.b.h.
Fetherstonhaugh & Co.
LandOfFree
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