Patent ID: 7644840
Filing Date: 2010-01-12
Classification: B01F,F16K,G01F

Abstract:
1. A valve assembly comprising: a housing comprising a first outlet opening and a second inlet opening, a valve member mounted within the housing rotatable about an axis and between at least a dispensing position and a further position, a first seat surrounding the first outlet opening for mounting and guiding the valve member within the housing, the first seat comprising an outer ring connected to the housing and an inner seat ring that surrounds the first inlet opening, the outer ring and inner seat ring being connected by an annular resilient section extending therebetween, the outer ring, the inner seat ring, and the annular resilient section being integrally made of same material, a second seat surrounding the second inlet opening, the second seat being sandwiched between the housing and the valve member without any spring element disposed between the housing and the second seat, and the assembly further comprises a spring disposed between the at least one of the annular resilient section and inner seat ring of the first seat and the housing, the spring abutting the at least one of the annular resilient section and inner seat ring of the first seat and biasing the first seat against the valve member and the valve member against the second seat to clamp the valve member between the first and second seats and the valve member away from the first outlet opening and towards the second inlet opening.