Fluid control valve

DETAILED DESCRIPTION We claim: 1.
A fluid flow control valve comprising a conduit for the fluid; a planar face formed on the conduit; a carrier member journalled for angular movement about an axis, the axis being perpendicular to and intersecting the planar face; a pair of passages opening through the planar face for flow of fluid from the conduit to the passages, the passages being equispaced about the axis; the carrier member having a pair of chambers, each chamber having a cup-shaped elastomeric valve member with a base located therein; a spring in each chamber acting on the base of the corresponding valve member to urge the same against said planar face, each cup-shaped elastomeric valve member having a plurality of peripheral sealing ribs making contact with the respective chamber around the periphery of the cup-shaped member, and each cup-shaped member base being larger than the passage and having a port therethrough which is smaller than the passage so that when the chambers and passages are axially aligned, fluid pressure acting on the inside surface of the cup-shaped member to urge the same against the planar face acts over an area larger than that subject to pressure in the opposite direction from fluid in the passage; and means for turning the carrier member to displace the cups away from the passages and allow flow therethrough.
2.
A valve as recited in claim 1 arranged so as to supply both hot and cold water through respective waterways in a common outlet spout, wherein there are two sets of carrier members as a faucet at opposite ends of a common axis of movement and further comprising levers at each end of said axis.




Description:
This invention relates to fluid control valves and particularly, but not exclusively water taps of the kind known as bath fillers, basin mixers and the like, in which hot and cold water supplies are channelled through generally parallel passages under the control of individual valves for discharge from a common spout.
Often, the valves concerned are primarily intended to have an on/off control and in this case, it is conventional to provide a control member which is angularly movable for a small degree, for example say 90 degrees, between the on and off positions