E - Fixed Constructions – 03 – D
Patent
E - Fixed Constructions
03
D
E03D 3/00 (2006.01) B64D 11/02 (2006.01) E03D 11/00 (2006.01) E03F 1/00 (2006.01)
Patent
CA 2372483
A vacuum waste system is disclosed having a receptacle for receiving waste, the receptacle having an outlet, and a collection tank in fluid communication with the receptacle outlet. A vacuum source is in fluid communication with the collection tank to produce a partial vacuum in the collection tank. A flush actuator is provided that is operable to generate a flush command, and a flush valve is disposed between the toilet outlet and the collection tank having a normally closed position, the flush valve actuating to an open position fox a flush interval in response to the flush command, thereby to control fluid communication between the collection tank and toilet outlet. A vacuum control valve is disposed between the vacuum source and the collection tank, the vacuum control valve being operable between open and closed positions thereby to control fluid communication between the collection tank and vacuum source. The vacuum control valve is operably linked to the flush valve so that the vacuum control valve is operated in the closed position during at least a portion of the flush interval, thereby to control air flow through the system during operation.
Obee Frederick Larry
Pondelick Mark A.
Evac International Oy
Kirby Eades Gale Baker
LandOfFree
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