Vacuum toilet system with simultaneous rinse and discharge

Details Vacuum toilet system with simultaneous rinse and discharge Vacuum toilet system with simultaneous rinse and discharge

1988-12-21

1991-04-16

Recla, Henry J.

Baths, closets, sinks, and spittoons

Flush closet

Bowl

4435, E03D 1100

Patent

active

050071173

ABSTRACT:
A vacuum toilet system comprises a waste-receiving bowl defining an interior space for receiving waste material. A sewer pipe defines an interior space that can be placed at a pressure that is lower than that in the interior space of the waste-receiving bowl, and a discharge valve is connected between the outlet of the waste-receiving bowl and the sewer pipe for controlling passage of material between the waste-receiving bowl and the sewer pipe. A rinse liquid valve controls supply of rinse liquid to the waste-receiving bowl. A controller is responsive to a user stimulus to open and close the discharge valve in accordance with a predetermined cycle, and to open the rinse liquid valve during at least the interval during which the discharge valve is being opened.

REFERENCES:
patent: 3239849 (1966-08-01), Liljendahl
patent: 3599248 (1971-08-01), Fulton et al.
patent: 3686693 (1972-08-01), Liljendahl
patent: 3811135 (1974-05-01), Drouhard, Jr. et al.
patent: 3922730 (1975-12-01), Kemper
patent: 4232409 (1980-11-01), Van Pham
patent: 4275470 (1981-06-01), Badger et al.
patent: 4357719 (1982-11-01), Badger et al.
patent: 4713847 (1987-12-01), Oldfelt et al.
patent: 4819279 (1989-04-01), Sigler et al.
Mansfield, "Vacu-Flush", brochure (entire document) (date unknown).
Mansfield, "Vacu-Flush" Owners Manual (entire document) (date unknown).

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