Patent ID: 6182703
Filing Date: 2001-02-06
Classification: E03C,Y10T

Abstract:
In a pipe carrying a stream of flowing water, with a flow rate of a given volume, a venturi based vacuum valve apparatus for water conservation comprising:(a) a plug force fitted inside said pipe, for reducing the volume of the flowing water, with first, second and third openings;(b) the first opening formed in said plug facing said flowing water as an inlet smaller than the second opening and the first and second openings connected within said plug so that a small diameter space is connected with a large diameter space of constant dimension within said plug;(c) a third opening, open to the atmosphere, intersecting the small and large diameter space after the small diameter space and before the second opening, forming a suction hole; and(d) the second opening connected to said large diameter space of constant dimension forming an outlet in said plug.