Liquid treatment injector

A water aerator, comprising:

• A. an integral, housing having an exterior wall and an unaerated water inlet end and an aerated water outlet end, a first conduit for unaerated water extending through the interior of said housing from its inlet end to its outlet end, a second conduit for water that is entrained with air extending through the interior of said housing from its inlet end to its outlet end, said first conduit having a first water inlet port and an unaerated water discharge port, a first valve seat in said first conduit, said second conduit having a second water inlet port and an aerated water discharge port, said second conduit having a constricted portion between said second water inlet port and said aerated water discharge port that defines a venturi thereinside, an aperture through said exterior wall of said housing located at said constricted portion for entry of atmospheric air that is entrained into the water passing through said second conduit, a second valve seat in said aerated water discharge port,
• B. a first valve closure member in said housing that is sized to mate with said first valve seat and a first spring urging said first valve closure member toward said first valve seat;
• C. a removable end cap having a valve closure assembly for said second valve seat comprising a second valve closure member sized to mate with said second valve seat, a second spring urging said second valve closure member toward said second seat in a direction opposite to the aerated water flow through said second conduit, said end cap having a collection conduit for combining the water that has flowed through said first and second conduits, a pressure relief outlet in said end cap, a pressure relief port between said collection conduit and said pressure relief outlet, a third valve seat in said pressure relief port, a third valve closure member sized to mate with said pressure relief port in said end cap, a third spring urging said third valve closure member toward said third valve seat;
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• D. means for removably attaching said end cap to said outlet end of said housing.

A water aerator, comprising:

• A. an integral, housing having an exterior wall and a water inlet end and an aerated water outlet end, a first conduit for unaerated water extending through the interior of said housing from its inlet end to its outlet end, a second conduit for water that is entrained with air extending through the interior of said housing from its inlet end to its outlet end, said first and second conduits being separated from each other in said housing so as to provide separated water flow channels through the interior of said housing with the water flowing in the same general direction through the separated channels, said first conduit having a first water inlet port at said inlet end of said housing and an unaerated water discharge port at said outlet end of said housing, a first valve seat in said first conduit between said first water inlet port and said unaerated water discharge port, said second conduit having a second water inlet port at said inlet end of said housing and an aerated water discharge port at said outlet end of said housing, said second conduit having a constricted portion between said second water inlet port and said aerated water discharge port that defines a venturi there inside, an aperture through said exterior wall of said housing located at said constricted portion for entry of atmospheric air that is entrained into the water passing through said second conduit, a second valve seat in said aerated water discharge port,
• B. a first valve closure member in said first conduit that is sized to mate with said first valve seat and a first spring urging said first valve closure member toward said first valve seat in a direction opposite to the flow direction of water in said first conduit;
• C. a removable end cap having a valve closure assembly for said second valve seat comprising a second valve closure member sized to mate with said second valve seat, a second spring urging said second valve closure member toward said second seat in a direction opposite to the direction of aerated water flow through said second conduit, said second valve closure assembly having a collection conduit for combining the water that has flowed through said first and second conduits, a pressure relief outlet in said valve closure assembly, a pressure relief port between said collection conduit and said pressure relief outlet, a third valve seat in said pressure relief port, a third valve closure member sized to mate with said pressure relief port, a third spring urging said third valve closure member toward said third valve seat;
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• D. means for removably attaching said end cap to said outlet end of said housing.

An adjustable potable water aerator, comprising:

• A. an integral, housing having an exterior wall and a water inlet end and an aerated water outlet end, a first conduit for unaerated water extending through the interior of said housing from its inlet end to its outlet end, a second conduit for water that is entrained with air extending through the interior of said housing from its inlet end to its outlet end, said first and second conduits being separated from each other inside of said housing so as to provide separated water flow channels through the interior of said housing with the water flowing in the same general direction through the separated channels, said first conduit having a first water inlet port at said inlet end of said housing and an unaerated water discharge port at said outlet end of said housing, a first valve seat in said first conduit between said first water inlet port and said unaerated water discharge port, said second conduit having a second water inlet port at said inlet end of said housing and an aerated water discharge port at said outlet end of said housing, said second conduit having a constricted portion between said second water inlet port and said aerated water discharge port that defines a venturi thereinside, an aperture through said exterior wall of said housing located at said constricted portion for entry of atmospheric air that is entrained into the water passing through said second conduit, a second valve seat in said aerated water discharge port,
• B. a removable first valve closure assembly comprising a first valve closure member sized to mate with said first valve seat and a first spring urging said first valve closure member toward said first valve seat in a direction opposite to the flow direction of water in said first conduit, a removable first positioner containing said first valve closure member and said first spring that locates said first spring and said first valve closure member in said first conduit;
• C. a removable end cap having a second valve closure assembly for said second valve seat comprising a second valve closure member sized to mate with said second valve seat, a second spring urging said second valve closure member toward said second seat in a direction opposite to the direction of aerated water flow through said second conduit, said end cap having a collection conduit for combining the water that has flowed through said first and second conduits, a pressure relief outlet in said end cap, a pressure relief port between said collection conduit and said pressure relief outlet, a third valve seat in said pressure relief port, a removable third valve closure assembly within said end cap comprising a third valve closure member sized to mate with said third valve seat, a third spring urging said third valve closure member toward said third valve seat, a removable second positioner containing said third valve closure member and said third spring that holds said third spring and said third valve closure member within end cap, means for removably attaching said third valve closure assembly to end cap, and means spanning said collection conduit holding said first removable positioner in said first conduit;
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• D. means for removably attaching said end cap to said outlet end of said housing.

A aqueous concentrate aerator, comprising:

• A. an integral, housing having an exterior wall and a aqueous concentrate inlet end and an aerated aqueous concentrate outlet end, a partition inside of said housing extending through said housing and dividing said housing into a first conduit for unaerated aqueous concentrate and a second conduit for aqueous concentrate that is entrained with air, said first and second conduits being separated from each other by said partition so as to provide separated aqueous concentrate flow channels through the interior of said housing with the aqueous concentrate flowing in the same general direction through the separated channels, said first conduit having a first aqueous concentrate inlet port at said inlet end of said housing and an unaerated aqueous concentrate discharge port at said outlet end of said housing, a back pressure drain valve seat in said first conduit between said first aqueous concentrate inlet port and said unaerated aqueous concentrate discharge port, said second conduit having a second aqueous concentrate inlet port at said inlet end of said housing and an aerated aqueous concentrate discharge port at said outlet end of said housing, said second conduit having a constricted portion between said second aqueous concentrate inlet port and said aerated aqueous concentrate discharge port that defines a venturi thereinside, an aperture through said exterior wall of said housing located at said constricted portion for entry of atmospheric air that is entrained into the aqueous concentrate passing through said second conduit;
• B. a removable valve closure assembly comprising a valve closure member sized to mate with said back pressure drain valve seat and a spring urging said valve closure member toward said back pressure drain valve seat in a direction opposite to the flow direction of aqueous concentrate in said first conduit, a removable valve positioner containing said valve closure member and said spring that locates said spring and said valve closure member in said first conduit;
• C. a removable flow control end cap comprising an untreated water supply inlet conduit, an aerated aqueous concentrate conduit hydraulically connecting said discharge port of said second conduit to said water supply inlet conduit, a drain conduit hydraulically connected to said discharge port of said first conduit;
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• D. means for removably attaching said removable flow control end cap to said outlet end of said housing.