Abstract: A method is provided for interfacing a remote wand to its electronics control chassis by means of a coiled cable. The wand may consist of a sensor such as a light-sensitive detector, and the control electronics provide amplification and processing of the received light signal. The interface cable connecting the wand to the receiver chassis consists of a coiled cable which is stored inside the wand itself. This method provides maximum protection, efficient utilization of space, and avoids the problems associated with exposed interface cables and moving parts.

Abstract: Improved modular transient voltage surge suppressor apparatus that provide a simple structure for coupling multiple modules are disclosed. In general, such apparatus includes a substrate; a mounting post coupled to and extending substantially perpendicular to the substrate; and a transient voltage surge suppression module, wherein the module includes a non-conductive housing having a surge suppression circuit contained therein, and mounting means coupled to the non-conductive housing, the mounting means comprising a bore therethrough for slidably mounting the transient voltage surge suppression module on the mounting post, the bore having an internal profile corresponding to an external profile of the mounting post.

Abstract: Improved modular transient voltage surge suppressor apparatus are disclosed that equalize transient current sharing between multiple modules. In general, such apparatus includes first and second transient voltage surge suppression modules, each module having a non-conductive housing with a surge suppression circuit contained therein, and first and second electrically-conductive buses mechanically coupled to the non-conductive housing and electrically coupled to first and second terminals of the surge suppression circuit, respectively. A first bus coupler couples the first electrically-conductive buses of the first and second transient voltage surge suppression modules and a second bus coupler couples the second electrically-conductive buses of the first and second transient voltage surge suppression modules, whereby the surge suppression circuits in each of the first and second modules are electrically coupled in parallel.

Abstract: An apparatus for providing independent over-current protection to a plurality of electrical devices and a transient-voltage suppression system employing the apparatus. In one embodiment, the apparatus includes a non-conductive body having a plurality of bores extending through the body from a first portion to a second portion of the body, a plurality of fusible elements corresponding to and disposed within the plurality of bores, each of the fusible elements having a first terminal proximate to the first portion of the body and a second terminal proximate to the second portion, and a common electrode coupled to the first terminal of each of the plurality of fusible elements. The common electrode is couplable to a source of electrical power and the second terminals of each of the plurality of fusible elements are couplable to an electrical device, such as a metal oxide varistor in a transient-voltage suppression system.

Abstract: A suppressing capacity circuit for use with a transient voltage protection device; the transient voltage protection device includes a plurality of series-coupled current-limiting elements and transient-suppressing elements couplable between first and second electrical conductors to suppress transient voltages therebetween, the current-limiting elements being adapted to open-circuit upon the failure of a transient-suppressing element coupled in series therewith.

Abstract: A system for increasing the efficiency of single and multi-phase induction motors. The system is comprised of a microcontroller which combines a time when the AC line current reaches zero amps with a time when AC line voltage to the AC motor reaches zero volts and with a digital measurement provided by an A/D converter to determine a servo error. The servo error determines whether the A/C motor needs more or less power. The microprocessor provides a control signal to a switching means to supply the minimum power required based on the servo error.