Baths – closets – sinks – and spittoons – Strainer – stopper – plug or closure – Combined strainer and pipe coupling
Patent
1990-03-21
1991-03-19
Artis, Henry K.
Baths, closets, sinks, and spittoons
Strainer, stopper, plug or closure
Combined strainer and pipe coupling
4286, 4290, 4292, 1510433, E03C 126
Patent
active
049998587
ABSTRACT:
A drain pipe assembly, which includes a S-shaped drain pipe having mounted on its orifice a cup-like filter plate and a strainer and having inserted therein a cleaning brush. The S-shaped drain pipe includes a bent pipe portion extending from a vertical end pipe portion to define therewith a first bent on its upper side and a second bent on its bottom side, wherein the second bent is arranged at a level much higher than the first bent so that impurities and mud carried by rain water can be retained in the bottom of the vertical end pipe portion and vermin can be prohibited from passing therethrough. The cleaning brush can be pulled up and pushed down repeatedly to shack off the sediments accumulated thereon and clear the passage way of the boring bore of the drain pipe to prevent against block-up
REFERENCES:
patent: 594169 (1897-11-01), Cotsiff
patent: 774953 (1904-11-01), Rieker
patent: 1886676 (1932-11-01), Heucker
patent: 1935128 (1933-11-01), Pullman
patent: 2424932 (1947-07-01), Juhasz
patent: 2506669 (1950-05-01), Heucker
patent: 2690569 (1954-10-01), Kozerski
patent: 4051042 (1977-09-01), Tullier et al.
patent: 4164048 (1979-08-01), Kampfer et al.
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