Fluid handling – Convertible – Unit orientable in a single location between plural positions
Patent
1983-10-27
1986-09-02
Schwadron, Martin P.
Fluid handling
Convertible
Unit orientable in a single location between plural positions
13762541, F16K 1106
Patent
active
046090070
ABSTRACT:
A mixing valve for connection to hot and cold supply lines for feeding a variably proportioned mixture of hot and cold water to a shower head or the like is disclosed. A valve body presents a planar discharge surface having spaced hot and cold inlet orifices with an outlet orifice generally centered on an axis between them. A cap of inverted cup shape has a rim sealed with respect to the discharge surface and has a circular end wall with an axial opening formed therein. Arranged on the axis is a rotor having a shaft which extends through the axial opening and which is in the form of a disc having a plurality of hollow pedestals with blind openings facing the discharge surface. Resilient sealing pads are respectively telescoped into the blind openings, each sealing pad having an associated coil spring for biasing the pad into engagement with the discharge surface. Stops limit the range of rotor rotation to more than 90.degree. but less than 180.degree.. The sealing pads include a pair of generally circular pads of limited arcuate extent sealingly engageable with the cold inlet orifices at the respective limits of rotor rotation. A single pad of approximately double the arcuate extent of one of the circular pads is sealingly engageably with the hot inlet orifice during approximately the first half of the range of rotor rotation thereby providing a gradual transformation from cold to hot at the outlet orifice.
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Schwadron Martin P.
Starsiak Jr. John S.
Sterling Faucet Company
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