Patent ID: 9404248
Filing Date: 2016-08-02
CPC Classification: E03F,F16K,Y10T

Claim Text:
1. A sewage backflow prevention system comprising: a sewage backflow assembly comprising; wherein said sewage backflow assembly is able to be installed concentrically in line with a sewage drain pipe to prevent an unintended backflow of a sewage water into an interior of a building; wherein said second end of said inlet pipe segment is non-removably inserted into said first opening of said flapper housing, said inlet-pipe-outer-periphery frictionally contacting said first-opening-inner-periphery; wherein said first end of said inlet pipe segment is integral with said inlet pipe segment and said second end, said first end at an opposing end from said second end; wherein said top side of said flapper housing is oriented upwardly and opposite from said bottom side of said flapper housing, said top side and said bottom side being integral with each other and said first opening and said second opening of said flapper housing; wherein said flapper hinge tab and said flapper disc are integral, an outer circumference of said flapper disc transversely located within an inner diameter of said flapper housing; wherein said flapper hinge tab is frictionally and non-removably located between said inlet-pipe-outer-periphery of said inlet pipe segment and said first-opening-inner-periphery of said first opening of said flapper housing wherein said flapper hinge tab has a first face in contact with said inlet-pipe outer periphery and wherein said flapper hinge tab has a second face in contact with said first-opening inner periphery; wherein an outer periphery of said proximate end of said outlet pipe segment is non-removably inserted within said second-opening-inner-periphery of said flapper housing; wherein said distal end of said outlet pipe segment is at an opposite end from said proximate end; wherein said first end of said inlet pipe segment and said distal end of said outlet pipe segment are coupled inline to said sewage drain pipe such that a flowing said sewage water enters through said first end of said inlet pipe segment of said sewage backflow assembly and exits said through said distal end of said outlet pipe segment; and wherein said sewage backflow assembly is useful for installing in-line within said sewage drain pipe, said sewage backflow assembly able to prevent a backflow of said sewage water within said sewage drain pipe having said sewage backflow assembly.