Patent ID: 6382517
Filing Date: 2002-05-07
Classification: G05D,Y10T

Abstract:
Device for equalizing the hot water and cold water pressures in a hot water faucet for sanitary use comprising, upstream from a thermostatic unit (200):a moving element (108) constituted by a membrane (109) whose plane determines the plane of symmetry of two chambers, and a control rod (110) that passes through the membrane (109) at its center, to which rod said membrane is attached, valves (111, 112) mounted on each of the two ends of the common control rod and respectively being operably to control cold water and hot water, the valves cooperate with seats (113, 114), the valves having cross-sections, guiding means (115, 116) for translationally guiding the control rod, a nonreturn valve (117, 118) installed in each of the outlets of the chambers, this device being characterized in that the guiding means (115, 116) are located on each of the ends of the control rod and have guiding surfaces smaller than the cross sections of the valves and further comprising an elastic element (120) stressing the moving element in a direction corresponding to closing of the valve (112) controlling hot water.