Vacuum assisted toilet

Details Vacuum assisted toilet Vacuum assisted toilet

2007-04-24

2007-04-24

Fetsuga, Robert M. (Department: 3751)

Baths, closets, sinks, and spittoons

Flush closet

Bowl

C004S321000

Reexamination Certificate

active

10329617

ABSTRACT:
A toilet is provided with a vacuum to assist in the flushing process. The vacuum is provided downstream between the toilet bowl and a waste outlet to draw the waste contents of the toilet bowl and out of the toilet bowl to the waste outlet under pressure. A controllable valve connected to a vacuum source is connected in a discharge passage between the toilet bowl and the waste outlet. The valve is opened to apply vacuum to the discharge passage upon activation of a toilet flush actuator and closes prior to the waste contents of the toilet bowl reaching the location of the valve. A normally closed flap valve is connected between the discharge passage and the waste outlet to define a minimal amount of air in the discharge passage which is removed by the vacuum.

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