Abstract: A sealed glass tube has a gaseous filling which when subjected to high voltage produces a radiation of energy through the tube. An elongated electrical conductor is mounted lengthwise in the tube and subjects the gaseous filling to high voltage to provide electrical communication with the exterior of the tube and form ozone with an encircling perforated metal grid. The tube is supported within the grid by spacers secured to internally facing valleys of the fluted grid. The flutes of the grid extend fully from one end to the other to provide maximum output. In a preferred form of the invention, the rearward end of the conductor is slidably supported to for expansion and contraction. Also, the conductor includes an auxiliary portion extending through and having sealed relation with one end of the tube, the auxiliary portion having a wound connection to the conductor.

Abstract: A housing has an interior casing receiving a coolant. This casing is associated with a forced cooling system and has open ended tubular portions therethrough formed of electrically conducting metal. Glass ozone generating tubes are removably supported in the tubular portions by axial movement and are held in spaced ozone generating position by spacers on the tubes. The tubes have an electrically conducting silver coating on the interior surface and have an interior band engageable with the coating for admitting high voltage to the tube from a conductor leading into the tube. A treatment tank associated with the ozone generating system has a recirculating conduit operably connected with the housing for the ozone generating tubes. An additional conduit extends from the treatment tank to a storage tank and a filter for filtering out coagulated material is provided in this conduit.