Patent ID: 6820643
Filing Date: 2004-11-23
Classification: F16K,G05D,Y10T

Abstract:
A liquid pressure regulator antidrainage assembly, including in combination:an inlet portion including passageway means through which a liquid enters the regulator assembly and which is structurally arranged to connect to a source of liquid with said inlet portion including a piston member extending therefrom; an axial movable plunger portion having a cylinder portion structurally arranged to be located over said piston member of said inlet portion with said inlet portion having a toroidal profile where the plunger rests, with said cylinder portion of said plunger portion having a closed end with two concentric bolts, the first one arranged to sealingly engage in the housing, and the second one slides in a cavity located in the housing, and on the other side an open end defined by a cylindrical sleeve having an annular end structurally arranged to engage said inlet portion to block said passageway, with said annular end having a double conically shaped profile; a housing portion surrounding said plunger portion and structurally arranged to sealingly engage said inlet portion, said housing portion being structurally arranged to connect to a discharge device, with said housing portion having a cylindrical cavity where the second bolt of the plunger slides in said cavity; a spring member located between said inlet portion and said plunger portion; a sealing means located between said piston member of said inlet portion and said plunger portion; and communication tube members between the rear cavity of said inlet portion and the atmosphere.