Patent ID: 6154898
Filing Date: 2000-12-05
Classification: E03C

Abstract:
A wastewater drain control for fluid compartments, comprising,a fluid compartment having an open top, sidewalls, and a bottom,a wastewater discharge port in the bottom in communication with a vertical pipe that has an inner diameter,a valve seat element in the pipe below the port having an inclined annular valve seat surface and a center opening,a spherical valve element having a diameter greater than the center opening in the valve seat surface and adapted to close the center opening to fluid flow when dwelling on the inclined annular valve seat surface above the center opening,a valve stem rigidly secured by an upper end to the spherical valve element and extending downwardly through the center opening and terminating in a lower end,linkage connected to the lower end of the valve stem and extending laterally outwardly through the pipe to an operating position above and adjacent the fluid compartment to raise and lower the spherical valve element with respect to the valve seat element and the center opening therein to open and close, respectively, fluid flow downwardly through the center opening in the valve seat element,a drainer strainer is located over the discharge port in the fluid compartment, wherein the strainer is mounted on top of the pipe, andan annular groove is formed in the inner diameter of the pipe adjacent the port, a plurality of elongated resilient rods extend downwardly from the strainer and terminate in a barb that engages the annular groove.