Abstract: A corona discharge ozonator is provided that comprises a first electrode, a second electrode and a dielectric material disposed between the electrodes. An ozonization chamber is formed between one of the electrodes and the dielectric material and defines a fluid flow path. A plurality of thermally-conducting solids are within the fluid flow path. Substantially each of the solids touches another of the solids and either the dielectric material or the first or second electrode. These solids transfer heat from the hotter to the cooler of the dielectric and the first or second electrode when one of the electrodes is cooled by a conventional means such as a water bath. Corona discharge ozonators of the invention have improved ozone output and increased ozone production energy efficiency.

Abstract: A durable, efficient and relatively inexpensively manufactured ozonator is provided, which operates on the corona discharge principle and can be utilized to produce about 0.5 to about 2.25 kg of ozone per day at a favorable overall cost. A corona discharge ozonator embodiment includes an inner and outer electrode in a concentric relationship. At least one, preferably both, of the electrodes has a multi-layered porcelain coating bonded by individually applied and fired layers and with a total thickness of between 0.5 mm to 1.0 mm.

Abstract: A solar heat collector panel having an absorber plate with fins as part thereof to reduce convection air currents and heat loss from the panel. A screen disposed above a collector plate also reduces the undesired convection air currents. A fluid carrying pipe is attached to the collector plate by snapping into channels therein after a sealer material has been placed in the channel.