Patent ID: 6341618
Filing Date: 2002-01-29
Classification: E03C,Y10T

Abstract:
A plumbing stop valve inserted between a plumbing fixture and a waste stack, the valve comprising:(a) a substantially cylindrical body having an upper portion and a lower portion; (b) a lower assembly further comprising two or more ears, a lower seat, and a water outlet; (c) an upper assembly further comprising two or more ears, an upper seat and a water inlet; (d) a stop ball within the body, and having a diameter larger than that of the upper seat; (e) means to restrain the stop ball from descending onto the lower seat in the absence of water flow; (f) an upper O-ring affixed to the upper assembly; and (g) a lower O-ring affixed to the lower assembly, wherein the upper assembly and lower assembly are removeably attached to the body by engaging said ears with slots on the upper and lower portions of the body, and the O-rings providing water-tight seals, so that when water flows into the outlet, the stop ball is pressed against the upper seat, preventing the water from backing up into the valve.