Patent ID: 7799216

Claim:
A drain trap assembly for collecting sediment from wastewater flowing from an appliance drain to a sewer line, said drain trap assembly characterized as including: a conduit having a first upper conduit portion defining therein a first opening configured for appliance drain interconnection, and a second upper conduit portion spaced from said first upper conduit portion and defining therein a second opening configured for sewer line interconnection; said conduit further including upper, lower and side surfaces defining an interior wastewater flow pathway from said first opening to said second opening; said drain trap assembly further including a third conduit portion defining a lower access opening generally below and between said first and second upper conduit portions; a removable cup closure engaged to said third conduit portion so as to temporarily close said lower access opening; said cup closure further defining a sediment accumulation area within said third conduit portion; said cup closure further including a strainer removably extended within said drain trap assembly generally upwardly from said lower conduit surface area and across said wastewater pathway to a point at least adjacent said upper conduit surface area; said closure cup has a generally vertical cup axis when engaged with said third conduit portion; said strainer comprises multiple fibers extending in mass generally upwardly from said cup and generally parallel to said cup axis so as to present multiple straining fibers to said wastewater flow; said multiple fibers are attached to a unitary fiber support base which in turn is attached through a strainer support leg to said closure cup at said sediment accumulation area such that said strainer and cup are conveniently removed as said closure is opened; said strainer support leg extends across said wastewater pathway along with said upwardly extending multiple fibers; said strainer support leg having a generally concave surface at an upstream side of said multiple fibers for diverting at least some of said wastewater and sediment downwardly toward said sediment accumulation area; said strainer support leg having at least one aperture defined therein for passage of said wastewater from an upstream side of the strainer to a downstream side of said strainer; whereby said strainer engages sediment in said wastewater such that said sediment is guided by said generally angular concave leg surface to descend to said collection area for subsequent removal and disposal by removal of said cup closure.