Male urinal with automatic flushing

Details Male urinal with automatic flushing Male urinal with automatic flushing

1978-11-06

1980-04-08

Artis, Henry K.

Baths, closets, sinks, and spittoons

Flush closet

Urinals only

4305, 4406, 4407, 4DIG3, E03D 1300

Patent

active

041964810

ABSTRACT:
A male urinal automatically flushes when the user steps off a foot plate. The foot plate pneumatically sealed is resiliently deformable and is connected by a pneumatic conduit to a normally open switch whose closure completes a circuit that opens an electrically controlled valve to flush the urinal so long as the switch is closed. Release of pressure on the foot plate creates subatmospheric pressure as the foot plate returns to its undeformed condition, which collapses a diaphragm that permits the normally open switch to close. An air bleed restores the pressure in the foot plate to atmospheric at a controlled rate that predetermines the duration of flushing.

REFERENCES:
patent: 2999191 (1951-09-01), Muradian et al.
patent: 3034151 (1962-05-01), Filliung
patent: 3193846 (1965-07-01), Lefebvre

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