Batch ozonators for drinking water

Claim 2

Apparatus for purifying drinking water, comprising a first container for holding a supply of water, a perforated diffuser in said first container, an ozone generator connected to said diffuser and operable to supply ozone gas to said diffuser to be dispensed through the perforations therein into said first container and the water therein, a pump having its inlet connected to the interior of said first container, means connected to the outlet of said pump for conveying water therefrom to a second container, said means including a first filter interposed between said outlet and said second container to filter the water pumped into said second container, and manually settable timer means operable, when set, successively to energize said generator and said pump, respectively, first to supply ozone gas to said first container, then to pump the water in said first container to said second container.

Claim 3

Apparatus as defined in claim 1, wherein said first container has a pair of spaced openings in the upper end thereof, a spring-loaded cover is movably mounted on said first container adjacent one of said openings normally to be urged resiliently to a closed position over said one opening, and a second filter is removably mounted on said first container over the other of said openings to absorb excess ozone gas developed in said first container.

Claim 4

Apparatus as defined in claim 1, including a stand for supporting said containers adjacent one another, said conveying means further including a first conduit connecting the outlet of said pump to one side of said first filter, a second conduit having an inlet opening on the opposite side of said first filter to receive water from said pump after it has passed through said first filter, and having an outlet projecting exteriorly of said first filter, and means supporting said second conduit above said second container to have the outlet of said second conduit register with an opening in the upper end of said second container to deliver filtered water thereto.

Claim 5

Apparatus as defined in claim 3, wherein said supporting means comprises a member projecting laterally from said first container adjacent the upper end thereof to overlie said second container, a cylindrical housing has an open end sealingly and releasably secured to the underside of said member, and a closed end projecting beneath said member, said first filter comprises a porous, annular element sealingly seated at opposite ends against confronting surfaces on said member and said housing, respectively, and in radially spaced, coaxial relation to said housing, said first conduit opens at one end on the outlet of said pump and at its opposite end on the radial space between said housing and said element, and said second conduit is secured intermediate its ends in said closed end of said housing to be supported thereby above said second container with its inlet opening on the bore in said element.

Claim 6

Apparatus as defined in claim 1, including a stand for supporting said second container above said first container, and a duct opening at one end on said second container adjacent the upper end thereof, and at its opposite end on said first container, and operative to convey excess water from said second container back to said first container, when the level of the water in said second container exceeds a predetermined maximum.

Claim 7

Apparatus as defined in claim 5, wherein said second container is sealed, said first container has a vent in its upper end to connect the interior thereof to atmosphere, and said opposite end of said duct opens in said first container adjacent the upper end thereof also to vent the upper end of said second container to atmosphere.

Claim 8

Apparatus as defined in claim 1, including an air pump having an air inlet, and an outlet connected to said generator for supplying air under pressure to said generator, means connecting said air pump to said timer means for operation thereby concurrently with said generator, and an air filter removably secured over said air inlet for removing moisture from the air drawn into said air pump through its inlet, said filter including a moisture absorbing media which changes color upon absorbing moisture, and which may be heated to remove moisture therefrom.

Claim 9

Apparatus for purifying drinking water, comprising a base, a first container on said base for holding a supply of drinking water, a perforated diffuser mounted in said container adjacent its lower end, an ozone generator supported on said base adjacent said container and having an outlet connected to said diffuser for supplying ozone gas therethrough to the water in said container, means for removably supporting a second container in an operative position on said base adjacent said first container, a pump supported on said base adjacent the lower end of said first container, a first conduit connecting the inlet of said pump to the interior of said first container adjacent said lower end thereof, a second conduit connected at one end to the outlet of said pump, means supportinG the opposite end of said second conduit on said base for communication with the interior of said second container, when the latter is in its operative position, electrical timer means supported on said base for controlling the operation of said generator, said timer means including a manually settable element movable from a normally off position selectively to a plurality of different operating positions corresponding, respectively, to the desired interval that said generator is to be operated, and means operative automatically to energize said pump for a predetermined period of time following each interval during which said generator is operated.

Claim 10

Apparatus for purifying drinking water, comprising a base, a first container on said base for holding a supply of drinking water, a perforated diffuser mounted in said container adjacent its lower end, an ozone generator supported on said base adjacent said container and having an outlet connected to said diffuser for supplying ozone gas therethrough to the water in said container, means for removably supporting a second container in an operative position on said base adjacent said first container, a pump supported on said base adjacent the lower end of said first container, a first conduit connecting the inlet of said pump to the interior of said first container adjacent said lower end thereof, a second conduit connected at one end to the outlet of said pump, means supportinG the opposite end of said second conduit on said base for communication with the interior of said second container, when the latter is in its operative position, electrical timer means supported on said base for controlling the operation of said generator, said timer means including a manually settable element movable from a normally off position selectively to a plurality of different operating positions corresponding, respectively, to the desired interval that said generator is to be operated, and means operative automatically to energize said pump for a predetermined period of time following each interval during which said generator is operated.

Claim 11

Apparatus as defined in claim 8, including a normally-closed member mounted over a first opening in said first container, and movable manually to an open position to admit a supply of water through said opening into said first container.

Claim 12

Apparatus as defined in claim 9, including an air filter removably mounted in a second opening in the upper end of said first container to vent the interior thereof to atmosphere, and to absorb excess ozone gas developed in said first container.

Claim 13

Apparatus as defined in claim 8, wherein said means for supporting said second container comprises a plane surface formed on said base and projecting laterally beyond the lower end of said first container, said means for supporting the opposite end of said second conduit comprises a member projecting laterally from the upper end of said first container in vertically spaced relation to said plane surface, and said opposite end of said second conduit is secured to, and projects downwardly from said member to register with an opening in the upper end of said second container, when the latter is in its operative position.

Claim 14

Apparatus as defined in claim 8, wherein said means for supporting said second container comprises a housing surrounding said first container and projecting thereabove, said means for supporting the opposite end of said second conduit comprises a capping member mounted in said housing beneath and in registry with an opening in the upper end of said housing, said second container is removably mounted on said housing above said first container, and has a flanged opening in its lower end which projects downwardly through said opening in the upper end of said housing, and sealingly into a recess in the upper end of said capping member to be sealed thereby, and said opposite end of said second conduit projects through an opening in said capping member and into said opening in the lower end of said container to deliver water thereto from said pump.

Claim 15

Apparatus as defined in claim 12, wherein a third conduit is secured at one end in the upper end of said first container to communicate with the interior thereof, and projects at its opposite end through said capping member and substantially into said second container to vent the upper end thereof, when said second container is in its operative position.