Abstract: The present invention is directed to a point-of-use water treatment system (WTS) unit (20) for filtering and treating contaminants in water. WTS unit (20) may include a first primary coil (74) located in a base unit (22) which inductively power a secondary treatment device such as a UV lamp assembly (24). Secondary treatment device (24) may be a lamp assembly (24) which includes a condensing element (84) to condense mercury in a bulb in the arc path between filaments (444). Maintaining the condensed mercury between filaments (444) serves to reduce the time needed for lamp assembly (24) to produce light emissions of a predetermined intensity upon subsequent energization as compared to allowing the mercury to condense outside the arc path. A reflector assembly (402) may be used in lamp assembly (24) to focus radiation upon conduits (80) carrying water therethrough and away from returning to a bulb assembly (82) from which the radiation was originally emitted.

Abstract: The present invention is directed to a point-of-use water treatment system (WTS) unit (20) for filtering and treating contaminants in water. WTS unit (20) may include a first primary coil (74) located in a base unit (22) which inductively power a secondary treatment device such as a UV lamp assembly (24). A filter assembly (26) is used which has a filter block (90) and an inner sleeve (92) which extends inside filter block (90). Inner sleeve (92) defines a chamber in which the secondary treatment device (24) may be disposed. First and second valves and seals may be interposed between the filter assembly (26), secondary treatment device (24) and base unit (22) to allow the filter assembly (26) and secondary treatment device (24) to be independently replaceable. Secondary treatment device (24) may be a lamp assembly (24) which includes a condensing element (84) to condense mercury in a bulb in the arc path between filaments (444).

Abstract: A water treatment system 20 for filtering and treating contaminants in water includes a UV lamp assembly 24 coaxially received within a filter assembly 26. A valve system prevents water from being spilled from the filter assembly when the filter assembly is removed from the base unit 22 and the lamp assembly so that the lamp and filter assemblies are independently replaceable. The valve system includes a check valve 102 controlling flow between the lamp and filter assemblies.

Abstract: An activated carbon block filter including a unique bonded carbon mixture. The carbon mixture preferably includes a mean particle diameter in the range of about 60 microns to about 80 microns and a particle size distribution having less than 10% by weight of particles larger than 140 mesh and less than 10% by weight of particles smaller than 500 mesh. More preferably, the carbon mixture includes a mean particle diameter in the range of about 65 microns to about 75 microns. Even more preferably, the carbon mixture includes a mean particle diameter of about 70 microns and a particle size distribution having less than 7% by weight of particles larger than 140 mesh and less than 7.5% by weight of particles smaller than 500 mesh.

Abstract: The present invention is directed to a point-of-use water treatment system (WTS) unit (20) for filtering and treating contaminants in water. WTS unit (20) may include a first primary coil (74) located in a base unit (22) which inductively power a secondary treatment device such as a UV lamp assembly (24). A filter assembly (26) is used which has a filter block (90) and an inner sleeve (92) which extends inside filter block (90). Inner sleeve (92) defines a chamber in which the secondary treatment device (24) may be disposed. First and second valves and seals may be interposed between the filter assembly (26), secondary treatment device (24) and base unit (22) to allow the filter assembly (26) and secondary treatment device (24) to be independently replaceable. Secondary treatment device (24) may be a lamp assembly (24) which includes a condensing element (84) to condense mercury in a bulb in the arc path between filaments (444).

Abstract: The present invention is directed to a point-of-use water treatment system (WTS) unit (20) for filtering and treating contaminants in water. WTS unit (20) may include a first primary coil (74) located in a base unit (22) which inductively power a secondary treatment device such as a UV lamp assembly (24). A filter assembly (26) is used which has a filter block (90) and an inner sleeve (92) which extends inside filter block (90). Inner sleeve (92) defines a chamber in which the secondary treatment device (24) may be disposed. First and second valves and seals may be interposed between the filter assembly (26), secondary treatment device (24) and base unit (22) to allow the filter assembly (26) and secondary treatment device (24) to be independently replaceable. Secondary treatment device (24) may be a lamp assembly (24) which includes a condensing element (84) to condense mercury in a bulb in the arc path between filaments (444).