Abstract: An air cleaner is provided that includes one or more ionizing panels having at least one ionizing wire in connection with a voltage source. One or more collector cells separate from the one or more ionizing wire panels are releasably received within the air cleaner housing to establish an electrical connection between the collector cell and the voltage source for applying a voltage potential between the collector cell and the ionizing wire. The collector cell may be removed from the air cleaner to permit cleaning of the collector cell separate from the ionizing panels. The air cleaner monitors at least one variable indicative of the operation of the air cleaner. Upon determining that the variable has reached a predetermined level indicative of a significant amount of dust accumulation, a controller activates a light source to illuminate indicia on a display screen which indicates a need for servicing the air cleaner.

Abstract: An air cleaner is provided that comprises one or more ionizing panels having at least one ionizing wire in connection with a voltage source. One or more collector cells separate from the one or more ionizing wire panels are releasably received within the air cleaner housing to establish an electrical connection between the collector cell and the voltage source for applying a voltage potential between the collector cell and the ionizing wire. The collector cell may be removed from the air cleaner to permit cleaning of the collector cell separate from the ionizing panels. The air cleaner monitors at least one variable indicative of the operation of the air cleaner. Upon determining that the variable has reached a predetermined variable indicative of a significant amount of dust accumulation, an activates a light source to illuminate indicia on a display screen which indicates a need for servicing the air cleaner.

Abstract: The high output luminaire of the invention is capable of lighting a specific and determinable area defined by front and rear light shields. A reflector is mounted inside of a housing to forwardly direct light from a lamp positioned therein. The housing includes a hinged, waterproof access door having a transparent portion through which light from the lamp is shown. Adjustable front and rear light shields decreases the front and rear beam spread angles to confine the light from the luminaire to a chosen area.

Abstract: A method of charging a container with a predetermined quantity of a fluent material includes the steps of connecting the container to a bulk supply of the material, applying a vacuum within the container at a predetermined pressure level and for a predetermined period of time determined by an electronic timer to draw a charge of material into the container, the quantity of said charge being determined as a function of said pressure level and said period, and vacuum purging surplus material from the connection between the container and the bulk supply on completion of a filling operation and before commencement of a succeeding filling operation.