Abstract: The present invention relates to a system for water treatment using ozone. More particularly to a system using an improved ozone generator that is simple, compact, portable, efficient and easy to clean.

Abstract: The present invention relates to a transportable apparatus for water treatment. More particularly, the apparatus is destined to be fully automated and provide drinkable water quality to small-size municipalities. The apparatus is connected to a raw water source and comprises, within its own transportable housing, all the necessary components to treat water. The water treatment process requires the use of various water treatment stages to gradually purify the water source, involving a series of filters and in a preferred embodiment, uses ozone as a disinfectant.

Abstract: A jack-like elevator for use inside a storage hangar, that lifts a small aircraft in cantilevered fashion above the ground so that another small aircraft can be parked underneath it. The elevator includes an upright column, freely standing on an enlarged base plate, and maintained in upright condition by a pair of horizontal diverging support legs integral to the base plate. A guide mechanism using rails and guide wheels running on the rails, is used to move the plane vertically along a telescopic ram mounted inside the upright column.

Abstract: A corrugated metal building panel (e.g., made of steel) is provided herein. The panel has at least one (and preferably two) longitudinally extending major waves disposed about a neutral axis. Each such major wave is provided with a plurality of spaced-apart, discontinuous, web zones, each web zone comprising a plurality of interlinked longitudinally extending wave-like stiffeners superposed thereon. The wave-like stiffeners follow the general major corrugated pattern of the major wave thereof. A plurality of spaced-apart flange zones are formed on the panel, the flange zones comprising spaced-apart flattened areas deformed from the general corrugated pattern of the general major corrugated pattern of the panel. The panel is also provided with spaced-apart flange stiffeners. Furthermore, such flange stiffeners which are distributed along the major wave, always project from the exterior of the curvature of the major wave and are always directed towards the neutral axis of the panel.