Fluid handling – With liquid valves or liquid trap seals – Liquid seal in liquid flow line; flow liquid forms seal
Reexamination Certificate
2006-06-27
2006-06-27
Rivell, John (Department: 3753)
Fluid handling
With liquid valves or liquid trap seals
Liquid seal in liquid flow line; flow liquid forms seal
C137S247510, C137S558000
Reexamination Certificate
active
07066195
ABSTRACT:
This invention prevents blockage that occurs in the general drainage traps of buildings. The invention consists in connecting a conduit by positioning it in the inlet part above the trap water float level (M) and in the outlet part below a line (N) thereby forming a new auxiliary trap. The invention is suitable for use in traps in buildings which are connected to the common sewage system. The invention informs and thereby prevents the obstruction of the trap by the use of an alarm which is installed in the conduit wherein the water is diverted due to gravity when the conduit is obstructed and signals any obstruction in the conduit so that it can be cleared without waiting for the consequences of such a situation to occur. Also although water flows freely through the auxiliary trap section air does not freely communicate between the inlet and outlet pipes and foul odors are avoided.
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patent: 2146675 (1985-04-01), None
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Polster Lieder Woodruff & Lucchesi L.C.
Rivell John
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