Patent ID: 7886765

Claim:
A living-hinge air vent valve connectable to a sewer conduit, the living-hinge air vent valve comprising: a base, the base having at least one stud; a cover sealed to the base, the cover forming a cavity between the cover and the base; a fluid inlet shaft depending from a roof of the base, the fluid inlet shaft in fluid communication with external air passages passing through a side of the base and passing through vents in a side of the cover; a living-hinge flapper situated above the fluid inlet shaft and within the cavity, the living-hinge flapper allowing air to flow from the fluid inlet shaft into the cavity and preventing sewerage gasses from flowing from the cavity into the fluid inlet shaft, the living-hinge flapper having at least one hole, each of the at least one hole interfaced to the at least one stud, thereby holding the living-hinge flapper to the base, wherein a lower surface of the living-hinge flapper is tapered and an upper surface of the fluid inlet shaft is tapered to mate with the lower surface of the living hinge flapper; and one or more connecting shafts in the base, the fluid connecting shafts fluidly connecting the cavity with a sewer system.