Portable vacuum toilet system

Details Portable vacuum toilet system Portable vacuum toilet system

1993-01-25

1994-02-01

Cusick, Ernest G.

Baths, closets, sinks, and spittoons

Flush closet

Bowl

4321, 4323, E03D 1110

Patent

active

052822818

ABSTRACT:
A compact, self-contained, portable vacuum toilet system having a sump for collecting waste liquids by means of gravity, a differential pressure-operated discharge valve for regulating withdrawal of waste liquids from the holding sump for transport to a vacuum collection tank during a transport cycle, differential pressure-operated sensor and controller valves for regulating operation of the discharge valve in response to a hydrostatic pressure condition inside the holding sump, and a push button-operated water valve for adding water to the toilet bowl during and immediately after a flush cycle. A sink and its own push button-operated water valve may also be provided.

REFERENCES:
patent: Re28008 (1974-05-01), Liljendahl
patent: 3663970 (1972-05-01), Drouhard, Jr. et al.
patent: 3698019 (1972-10-01), Culp
patent: 3777778 (1973-12-01), Janu
patent: 4171853 (1979-10-01), Cleaver et al.
patent: 4199828 (1980-04-01), Hellers
patent: 4357719 (1982-11-01), Badger et al.
patent: 4373838 (1983-02-01), Foreman et al.
patent: 4819279 (1989-04-01), Sigler et al.
patent: 5078174 (1992-01-01), Grooms et al.
patent: 5232010 (1993-08-01), Rozenblatt et al.

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