This invention aims at improving the reliability of the electrode in an ozone generator, and also at shortening the start-up time of the ozone generator after the maintenance. The ozone generator comprising; a dielectric discharge tube, having a closed end and an open end which are faced each other, and including an electrode formed on an inner surface thereof, a sealing lid, covering the open end of the dielectric discharge tube and fixed to the dielectric discharge tube with an adhesive, a power supply brush, in inscribed contact with the electrode formed on the inner surface of the dielectric discharge tube, and a grounding electrode, arranged concentrically with the dielectric discharge tube; wherein the sealing lid includes a main body part and a cylinder part, which are connected together, and an inside diameter of the cylinder part is larger than an outside diameter of the dielectric discharge tube.

A corona discharge apparatus comprising: (a) an elongate inner electrode, (b) an elongate dielectric sleeve mounted on the inner electrode, (c) an elongate outer electrode mounted on the dielectric sleeve, and (d) an ozone-producing region over which the outer electrode extends, the ozone-producing region having an inlet end and an outlet end, the ozone-producing region defined by three sealing members at the inlet end thereof and three sealing members at the outlet end thereof, the sealing members forming a seal between the inner electrode and the dielectric sleeve.

According to one embodiment, an ozone generation device includes a first electrode unit, a second electrode unit, a fuse and a fuse holder. The first electrode unit is provided on an inner face of a discharge tube. The second electrode unit is provided outside the discharge tube at an interval. The second electrode faces the first electrode unit. A diameter of the outer face of the fuse is smaller than a diameter of the inner face. At least a part of the outer face is positioned inside the discharge tube. The fuse holder is interposed between the discharge tube and the fuse, includes the outer periphery and an inner periphery and is provided with a first opening and a second opening. The outer periphery extends in an arc along the inner face to come into contact with the inner face. The inner periphery extends in an arc along the outer face to come into contact with the outer face.

A cylindrical tank-shaped container including: plural parallel electrode tubes; discharge tubes arranged inside the electrode tubes, each forming a discharge gap; a pair of end plates that penetrate and hold both of end sections of the plural electrode tubes; a cooling space formed by the pair of end plates and the inner surface of the tank-shaped container divided between end plates; a cooling medium inlet and a cooling medium outlet formed in opposite end sides of the cooling space; a raw material gas inlet that introduces raw material gas to be sent to the discharge gaps; and an outlet for ozone gas generated from the raw material gas by silent discharge in the discharge gaps, providing an electrode tube in which a discharge tube is not arranged, among the plural electrode tubes, that have surrounding coolant medium that reaches at least a prescribed temperature resulting from the silent discharge.

A dielectric assembly for generating ozone includes a positive electrode, a negative electrode, a dielectric for generating the ozone, and a knob adapted to extend outside of a housing into which the dielectric assembly is to be placed. A system is also provided for sanitizing and deodorizing water, food, surfaces and air including a microbiological reduction filter device having an input connected to a water supply, a venturi injector disposed within a housing and connected to an output of the microbiological reduction filter device which generates ozone and mixes the generated ozone with the water, and an electrode assembly comprising a plurality of electrodes, a dielectric for generating the ozone, and a knob extending outside of the housing. The dielectric in a first embodiment and the entire dielectric assembly in a second embodiment can be removed from the housing and replaced in its entirety by the knob.

A system for creating a nitrate combined with a liquid. A corona discharge cell to generate an electrical field. The corona discharge cell further comprising a conduit to pass air through the electrical field to produce nitric oxide NO, wherein the air comprises a mixture of at least nitrogen N.sub.2 and oxygen O.sub.2, the conduit for combining the nitric oxide NO with the oxygen O.sub.2 to form nitrogen dioxide NO.sub.2. The corona discharge cell further comprising an injector for combining the nitrogen dioxide NO.sub.2 with the liquid to generate nitric acid HNO.sub.3 which combines with the liquid to generate the nitrate comprised of nitrate radical NO.sub.3 mixed with the liquid.