Abstract: One embodiment to redirect far-infrared energy away from a patient receiving light therapy is a unit housing (1) with an internal reflective surface (5) to re-direct waste heat emitted from a light therapy emitter (7) that is conducted and radiated by a heat sink (3) back to the heat sink (3) for re-radiation through radiance openings (6) in the unit housing (1). Use of a cooling fan is eliminated and air convection cooling is secondary to removal of heat by radiance, thereby enabling light therapy to be delivered in sterile environments without the light therapy device being subjected to sterilization processes since the light therapy device can be wrapped or bagged in a sterile covering without overheating. Other embodiments are described and anticipated.

Abstract: A remote low voltage power source for electrostatic paint applicators used in hazardous locations. A low voltage generator and voltage conditioning and regulating circuitry are mounted in a small explosion proof housing. A generator shaft and a shaft on a voltage level adjusting potentiometer extend through and projects from the housing. The flamepath and the flame gap for the shafts meet explosion proof standards while permitting shaft rotation. An air driven turbine is mounted on the exterior of the housing and is connected to the projecting generator shaft to drive the generator. The low voltage is applied to a spray gun which includes circuitry for increasing the voltage to a high level for electrostatic charging sprayed paint.

Abstract: A high voltage cable includes a fiber core, a first layer of electrically relatively non-insulative polymer, a second layer of electrically relatively non-conductive polymer, a third layer of electrically relatively non-insulative polymer, a fourth layer including a braided wire shield, and a fifth layer including a solvent- and abrasion-resistant polymer jacket.