Waterless urinals which can be flushed

Details Waterless urinals which can be flushed Waterless urinals which can be flushed

2006-09-26

2006-09-26

Nguyen, Tuan (Department: 3751)

Baths, closets, sinks, and spittoons

Flush closet

With recirculating means

C004S318000, C004S449000, C210S167050, C210S202000

Reexamination Certificate

active

07111332

ABSTRACT:
A waterless urinal that can be flushed with liquid consists of a urinal with a flushing liquid and urine separator and a flushing liquid recycling system; the flushing liquid and urine separator having three flow barriers which can guide urine to down-and-up type flow paths to a drain; two of the three flow barriers being able to serve as weirs; the flushing liquid recycling system being able to send flushing liquid from the lower portion of the urinal to the upper portion of the urinal; the flushing liquid recycling system being optionally a foot-operated pumping system which optionally having a paddle which connects to a bucket which can be tilted up or down by operations of the paddle; the foot-operated pumping system of the flushing liquid recycling system optionally having two paddles; the flushing liquid recycling system optionally being a pump, motor and piping system which has sensors, timer and power control and supply system.

REFERENCES:
patent: 3673614 (1972-07-01), Claunch
patent: 4014767 (1977-03-01), Schmidt
patent: 4070714 (1978-01-01), Bishton et al.
patent: 4346002 (1982-08-01), Petzinger
patent: 6496988 (2002-12-01), Hammond

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