Automatic vacuum urinal flush mechanism

Details Automatic vacuum urinal flush mechanism Automatic vacuum urinal flush mechanism

1983-06-02

1985-06-04

Artis, Henry K.

Baths, closets, sinks, and spittoons

Flush closet

Urinals only

4DIG3, 4313, 4316, 4354, E03D 1300

Patent

active

045205132

ABSTRACT:
An automatic flushing apparatus for vacuum flow system urinals. A pressure ensing switch responds to the hydrostatic pressure resulting from one or two urinations and directs the system vacuum to both a water dispensing valve and the main discharge valve to automatically flush the system with a measured amount of water to prevent odors and soil drain scale buildup.

REFERENCES:
patent: 3329974 (1967-07-01), Belasco et al.
patent: 3628194 (1971-12-01), Liljendahl
patent: 3628195 (1971-12-01), Skousgaard
patent: 3777778 (1973-12-01), Janu
patent: 3853138 (1974-12-01), Amren
patent: 3995328 (1976-12-01), Pardan et al.
patent: 4184506 (1980-01-01), Varis et al.
patent: 4196481 (1980-04-01), Swanda
patent: 4275470 (1981-06-01), Badger et al.

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