Automatic discharge assembly for a vacuum cleaner

Details Automatic discharge assembly for a vacuum cleaner Automatic discharge assembly for a vacuum cleaner

A - Human Necessities

47

L

A47L 9/00 (2006.01) A47L 5/36 (2006.01) A47L 7/00 (2006.01)

Patent

CA 2353784

An automatic discharge assembly for use with vacuum cleaner is disclosed. The vacuum cleaner has a tank defining an interior having an inlet for receiving liquid material and an outlet for discharging liquid materials, and a vacuum source for selectively generating a partial vacuum in the tank interior. The automatic discharge assembly comprises a valve housing defining a liquid discharge path having an inlet adapted for fluid communication with the tank outlet and an outlet for directing liquid material discharge. A pressure-responsive flapper valve is pivotably connected to the valve housing, the flapper valve being moveable between a closed position, in which the flapper valve obstructs the liquid discharge path, and an open position, in which the flapper valve allows fluid flow through the liquid discharge path. The flapper valve moves to the closed position when vacuum is present in the tank interior, and to the open position under a mass force of the liquid material inside the tank when a pressure in the tank interior is substantially the same as an atmospheric pressure outside the tank.

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