Abstract: The device for treatment of liquids by the help of generation of an electrically powered discharge of low-temperature plasma in liquid environment where is, when the liquid flows, possible to achieve generation of cavitation or super-cavitation which consists of mutually in series connected a pressure regulator and a cavitation tube which is formed by two mutually connected inlet chamber, confusor, working chamber, diffusor and a discharge chamber, where the essence of the invention is that there is in the inlet chamber in its lengthwise axis in direction of liquid flow placed a powered electrode which by its free end reaches into the working chamber and to it is electrically conductive connected a high voltage source whereas the powered electrode is electrically insulated from the body of the cavitation tube and also is in the discharge chamber placed a grounding electrode which is in electric contact with the liquid.

Abstract: A zero tail swing construction vehicle includes a body, a pair of track assemblies for supporting the body for movement over a surface, an engine supported on the body for providing power, a lower attachment pivotably coupled to the body, an upper attachment pivotably coupled to the body, a hydraulic system for providing power to the lower attachment and the upper attachment, an operator support pivotably coupled to the body and a rear hatch coupled to the operator support. The operator support is pivotable from a usage position forward about a horizontal axis to a service position. The rear hatch is pivotable with the operator support from the usage position to the service position. The construction vehicle further includes a plurality of service check points located underneath the operator support in the usage position. In the usage position the rear hatch conceals the service check points, while in the service position service check points are accessible through an opening.