Abstract:
To compose a composite filter for obtaining water having a high purity usable as water for life and water for medicine from water in which impurities are mixed. Furthermore, to compose an apparatus for obtaining water having a high purity using the filter. Moreover, to configure the apparatus so as to facilitate exchange of the filter. That is, water having a high purity can be obtained by allowing raw water to permeate through a composite filter which consists of a first layer 11 made of fibers, a second layer 12 made of ion exchange resin, a third layer 14 made of activated carbon and a fourth layer 16 made of an unwoven textile. These first layer, second layer, third layer and fourth layer are configured as separate independent filters respectively so that each filter can be exchanged independently. Furthermore, different kinds of filters can be combined dependently on purposes of use.
Abstract:
A lamp assembly configured to inductively receive power from a primary coil. The lamp assembly includes a lamp circuit including a secondary and a lamp connected in series. In a first aspect, the lamp circuit includes a capacitor connected in series with the lamp and the secondary to tune the circuit to resonance. The capacitor is preferably selected to have a reactance that is substantially equal to or slightly less than the reactance of the secondary and the impedance of the lamp. In a second aspect, the lamp assembly includes a sealed transparent sleeve that entirely encloses the lamp circuit so that the transparent sleeve is fully closed and unpenetrated. The transparent sleeve is preferably the lamp sleeve itself, with the secondary, capacitor and any desired starter mechanism disposed within its interior.
Abstract:
A radiation source module for use in a fluid treatment system. The radiation source module comprises: a frame (205) having a first support member, at least one radiation source assembly (125) extending from and in engagement with a first support member, the at least one radiation source assembly comprising at least one radiation source disposed within a protective sleeve; and an optical radiation sensor (150) disposed within the protective sleeve. The radiation source module is particularly useful in ultraviolet radiation treatment systems used to disinfect wastewater.
Abstract:
A UV lamp unit is provided and comprises a lamp in the form of a mercury low pressure amalgam lamp that is provided with at least one amalgam deposit. A cladding tube surrounds the lamp in such a way that an air gap is provided between the lamp and the cladding tube. An element is provided in one axial direction of the lamp, in the region of the at least one amalgam deposit, for influencing the temperature of the amalgam.
Abstract:
An inductive coil assembly having multiple coils arranged at distinct orientations to provide efficient inductive coupling of power or communications or both to a device when the device is arranged at different orientations with respect to the inductive primary coil. In one embodiment, the inductive coil assembly includes three coils, each oriented along one of the x, y and z axes of a standard Cartesian three-dimensional coordinate system. The three separate coils provide effective transfer of power and communication when the device is at essentially any orientation with respect to the primary coil. In an alternative embodiment, the multi-axis inductive coil assembly of the present invention can function as a primary to inductively transmit power or communication or both over a plurality of magnetic fields at distinct orientations.
Abstract:
An ultraviolet sensor monitors an effectiveness of ultraviolet lamps used in sterilization systems. The sensor includes an ultraviolet photodetector and a filter cooperating therewith configured for detecting light at wavelengths between 200-300 nm. A purification system for air or water utilizes the sensor in conjunction with an ultraviolet lamp directing ultraviolet light toward the air or water.
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). 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. An outer enclosure or housing (400) surrounds the bulb and reflector assemblies (82, 402) such that lamp assembly (24) becomes a generally closed pressure vessel. Also, a light pipe (250) impregnated with a florescent dye may be used to convert UV light into visible light for ease of monitoring the light output intensity of lamp assembly (24). Light pipe (250) also serves as a filter to primarily emit light of a particular wavelength (green) while significantly inhibiting light transmission through light pipe (250) of other wavelengths.
Abstract:
The present invention is directed to a replaceable lamp assembly for a point-of-use water treatment system (WTS). The lamp assembly includes first and second ends with respective sealed inlet and outlet openings associated with the ends. One or more conduits extend between the openings. A bulb assembly is positioned adjacent the conduit to irradiate liquid transferred in the conduit. A reflector assembly in the lamp assembly focuses radiation on the conduit. An enclosure surrounds the bulb and reflector assemblies such that lamp assembly becomes a generally closed pressure vessel.
Abstract:
A portable container is disclosed, provided a means for the purification of a fluid by ultraviolet radiation. The container houses the liquid and mates with the ultraviolet light source, which is powered by a battery attached thereto. Additionally, an ultraviolet light sensor is provided to shut off the ultraviolet light and notify the user when the water has received an adequate dose of ultraviolet radiation.
Abstract:
The invention relates to a method for operating a UV radiation source of the low-pressure gas discharge type. Said method comprises the following steps:nullimpingement of at least one heating coil with a heating voltage until the temperature of said coil has been increased;nullimpingement of the heating coil with a starting voltage in order to induce a gas discharge;nullmaintenance of the gas discharge by the application of a maintaining voltage and the disconnection of the heating voltage after the gas discharge has been started; in addition the following steps are preferably executed at any point in the method:nullinterrogation of an identification means that is connected to the UV radiation source andnullif the response to the interrogation is negative, prevention or interruption of the operation,nullif the response to the interrogation is positive, authorization of the operation. The invention also relates to a UV radiation source comprising a base body (20) and at least one connection zone which bears a number of electric connections (24, 25; 26, 27), whereby an identification means (28) that can be interrogated electrically is connected to the base body (20); and to a UV disinfection facility for fluids, in particular for water or waste water, said facility comprising at least one UV radiation source and an electric control and supply circuit that is located at a distance from the radiation source, whereby the control and supply circuit comprises an interrogation means which is suitable for verifying the presence of an identification means which is optionally assigned to the UV radiation source(s).