Abstract: An apparatus is provided for providing a camera unit for use in close proximity to a sporting event. The apparatus includes a sideline marking structure including a camera device and a computerized controller in wireless communication with a remote system. The sideline marking structure can include sideline markers in football, baseball, or soccer.

Abstract: An apparatus including a mobile timer unit for use in a sporting event is disclosed. The mobile timer unit includes a timer unit controller in communication with a remote master timer controller and an output device in communication with the timer unit controller. The mobile timer unit is operated wirelessly upon a moving object within the context of game play of the sporting event.

Abstract: A removable medical support mechanism can be used to protect a body member from injury. The mechanism includes a layer of flexible material providing a constrictive force upon the body member and a mesh layer comprising a plurality of interconnected mesh links. The mesh layer is configured to distribute a force of an impact upon the mechanism, thereby protecting the body member from receiving the force of the impact.

Abstract: An apparatus including a mobile timer unit for use in a sporting event is disclosed. The mobile timer unit includes a timer unit controller in communication with a remote master timer controller and an output device in communication with the timer unit controller. The mobile timer unit is operated wirelessly upon a moving object within the context of game play of the sporting event.

Abstract: A removable medical support mechanism can be used to protect a body member from injury. The mechanism includes a layer of flexible material providing a constrictive force upon the body member and a mesh layer comprising a plurality of interconnected mesh links. The mesh layer is configured to distribute a force of an impact upon the mechanism, thereby protecting the body member from receiving the force of the impact.

Abstract: An improved road maintenance truck includes a pair of hydraulically powered roller assemblies mounted to the underside of the vehicle frame and a vertically movable compression plate mounted to the vehicle frame. Each roller assembly has a compressive roller which runs the width of the truck. Two hydraulic actuators on each end of the vehicle raise and lower the roller into place. These independent rollers allow a road patching crew to selectively lower the roller for repairing road while initially flattening the patching material with the front roller and compacting the patching material with the rear. The compression plate is mounted to an actuator which selectively raises and lowers the compression plate to compress road patching materials. A roller heating system draws engine coolant through the rollers to heat the rollers and to reduce the heat built-up in the engine.

Abstract: An automated inspection system is provided wherein an inspection of a surface and the processing of inspection data acquired from the surface can be performed with limited or no operator involvement and wherein a high level of consistency can be s maintained between each inspection and between each processing of inspection data across multiple inspections of the surface.

Abstract: A mobile teaching system is disclosed which allows the use of personal computing devices in a learning environment. A plurality of portable computers may communicate with a portable network center to undergo lesson plans, testing, and other educational tasks. The portable computers may be stored in a fixed or mobile storage unit that may also serve as a network communications center, and may also provide power connections for the computers. The computers may include removable, rechargeable batteries, which may be recharged at the storage unit.