Abstract: A light tower assembly for the high density illumination of an indoor or outdoor area by a portable power plant or a stationary power source includes at least one vertical support shaft, at least one cross member attached to the vertical support shaft and at least on omnidirectional heavy duty LED light bracket attached to the cross member, providing support to a high lumen LED light, with the heavy duty LED light bracket being moveably aimed within a range of 360 degrees from a pivotal mounting point on the cross member.

Abstract: A high efficiency and high output electrical generator sized to match the electrical demands of generating power for lighting and operation of large amperage electrical machinery including an improved gear belt drive designed to allow the a diesel engine to run at a lower rpm, resulting in optimal fuel conservation benefit and longer run time on a tank of fuel, the engine, generator and motor mounts form a uniquely unitized mounting system employing a modular bell housing and generator adaptor plate supporting the engine, gears, belt drive and generator components.

Abstract: A light tower assembly for the high density illumination of an indoor or outdoor area by a portable power plant or a stationary power source includes at least one vertical support shaft, at least one cross member attached to the vertical support shaft and at least on omnidirectional heavy duty LED light bracket attached to the cross member, providing support to a high lumen LED light, with the heavy duty LED light bracket being moveably aimed within a range of 360 degrees from a pivotal mounting point on the cross member.

Abstract: Self-propelled hydrodynamic underwater toys with integrated propulsion mechanisms are described. In some embodiments, the propulsion mechanisms is partially or completely within an internal compartment in the toy's body. The propulsion mechanisms are adapted to be charged with a volume of fluid and to thereafter discharge the volume of fluid under pressure to propel the toy through a body of water. In some embodiments, the propulsion mechanism includes an expandable reservoir. In some embodiments, the propulsion mechanism is a replaceable propulsion mechanism. In some embodiments, the toy includes a trajectory-stabilizing structure that is adapted to impart at least one of a steering moment and a righting moment to the toy during underwater travel. The toy may be adapted to have positive, negative or neutral buoyancies, and can be adapted to maintain its buoyancy and/or its center of gravity while being propelled through a body of water by the propulsion system.