Abstract: A sanitizer apparatus and method for touchless sanitation of handheld objects such as mobile devices using ultraviolet radiation is provided. The sanitizer is configured for touchless operation to prevent cross contamination from a user physically touching the sanitizer. The sanitizer includes one or more UV radiation sources for exposing all external surfaces of the object being sanitized to UV-C radiation. A platform moves the object to be sanitized past the UV radiation sources and the interior of the sanitizer is reflective to ensure all external surfaces of the object receive the requisite dosage of UV-C radiation to inactivate microorganisms. The sanitizer includes one or more doors for restricting access to the interior of the sanitizer and preventing UV radiation from escaping the interior when the doors are closed. The sanitizer includes safety features to prevent the UV radiation sources from being switched on while the doors are open.

Abstract: A barrier for use in a barrier system is described. The barrier is movable to control access past the barrier, and said barrier comprises a media support means arranged to support a removable media to be displayed. The support means defines a media receiving path along which the media is movable to an inserted position in which the media is displayed.

Abstract: An engine device (10) consumes air under pressure to produce usable mechanical power. The device includes a wheel (28) rotatably supported within a tank of fluid (52). A plurality of pockets (40) at spaced positions about a periphery of the wheel are selectively filled with gas on a rising side (30) of the wheel and evacuated of gas on the falling side (32) of the wheel such that buoyancy of gas in the pockets on the rising side of the wheel causes rotation of the wheel to produce usable power at a power take-off shaft (24) of the wheel.

Abstract: A method of disposing safely and efficiently polychlorinated biphenyl (PCB) waste liquids. The PCB liquid is blended with fuel and the mixture is subjected to combustion in a self-contained system. Optionally, hydrochloric acid is recovered from the exhaust gases.