Hydraulic drive urinal flushing system

Details Hydraulic drive urinal flushing system Hydraulic drive urinal flushing system

1998-04-22

1999-09-28

Recla, Henry J.

Baths, closets, sinks, and spittoons

Flush closet

Urinals only

4249, 4308, 4313, 4345, 251 57, 251295, E03D 508, E03D 1300

Patent

active

059567791

ABSTRACT:
A hydraulic drive urinal flushing system includes a hydraulic cylinder having a piston reciprocated therein and a piston rod upwardly extended from the piston, a weight sensor mounted on the piston rod outside the hydraulic cylinder, and a valve connected to the hydraulic cylinder by a pipe for controlling the supply of flushing water to a urinal, the hydraulic fluid being forced out of the hydraulic cylinder into the valve to open the valve for letting flushing water pass to the urinal when the user steps on the weight sensor, the hydraulic fluid being returned from the valve to the hydraulic cylinder when the piston is moved downwards from the elevation of the pipe, the hydraulic fluid being forced out of the hydraulic cylinder into the valve to open the valve for letting flushing water pass to the urinal again when the user leaves from the weight sensor.

REFERENCES:
patent: 533021 (1895-01-01), Scott
patent: 916758 (1909-03-01), Murphy
patent: 1083382 (1914-01-01), Wenker et al.
patent: 3594829 (1971-07-01), Seek
patent: 4052035 (1977-10-01), Kenny et al.

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