Cycle valves
First Claim
1. A valve for mixing hot and cold water including a sleeve having axially spaced and radially non-aligned hot and cold water inlets in the side thereof, outlet means in said sleeve intermediate said inlets, a rotatable non-reciprocal valve member positioned within said sleeve to control the mixture of hot and cold water at said sleeve outlet means, said valve member including a hollow stem having hot and cold water inlet and outlet ports therein and a sealless reciprocally movable pressure balancing spool positioned within said stem, said spool and stem providing two spaced chambers, said stem cold water inlet and outlet ports opening into one chamber and said stem hot water inlet and outlet ports opening into the other chamber, with a portion of said chamber walls forming balancing surfaces for said spool, said stem hot and cold water inlet ports partially circumferentially overlapping so that at any open position of said valve member hot and cold water is in communication with both of said spaced chambers to provide balancing pressures thereon, and valve closing seal means positioned on said sleeve and extending through said sleeve hot and cold water inlets for sealing contact with said valve member.
2 Assignments
0 Petitions
Accused Products
Abstract
A valve for mixing hot and cold water includes a body having hot and cold water inlets and an outlet. A rotatable non-reciprocal valve member is positioned within the body to control the mixture of hot and cold water at the body outlet. There are seal means positioned to form a seal between the body and the valve member at the inlets.
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Citations
1 Claim
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1. A valve for mixing hot and cold water including a sleeve having axially spaced and radially non-aligned hot and cold water inlets in the side thereof, outlet means in said sleeve intermediate said inlets, a rotatable non-reciprocal valve member positioned within said sleeve to control the mixture of hot and cold water at said sleeve outlet means, said valve member including a hollow stem having hot and cold water inlet and outlet ports therein and a sealless reciprocally movable pressure balancing spool positioned within said stem, said spool and stem providing two spaced chambers, said stem cold water inlet and outlet ports opening into one chamber and said stem hot water inlet and outlet ports opening into the other chamber, with a portion of said chamber walls forming balancing surfaces for said spool, said stem hot and cold water inlet ports partially circumferentially overlapping so that at any open position of said valve member hot and cold water is in communication with both of said spaced chambers to provide balancing pressures thereon, and valve closing seal means positioned on said sleeve and extending through said sleeve hot and cold water inlets for sealing contact with said valve member.
Specification
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- Resources
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Current AssigneeMoen, Inc. (Canada) (Fortune Brands Innovations, Inc.)
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Original AssigneeStanadyne Corporation (Stanadyne Holdings Incorporated)
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InventorsMoen, Alfred M.
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Primary Examiner(s)Schwadron, Martin P.
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Assistant Examiner(s)Shay, James R.
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Application NumberUS06/339,854Time in Patent Office960 DaysField of Search137/100, 137/625.17, 137/625.41US Class Current137/100CPC Class CodesF16K 11/0746 with two or more closure pl...F16K 11/085 with cylindrical plugF16K 11/0856 having all the connecting c...Y10T 137/2521 Flow comparison or differen...Y10T 137/86549 Selective reciprocation or ...Y10T 137/86823 Rotary valve
