Abstract: An air cleaner is provided according to the invention. The air cleaner includes a printed circuit board (PCB) configured to operate the air cleaner and a diagnostics circuit. The diagnostics circuit is configured to receive a predetermined diagnostic initiation sequence in the air cleaner, initiate a diagnostics process for one or more operational features of the air cleaner in response to the predetermined diagnostic initiation sequence, and generate a diagnostics determination as a result of the diagnostics process.

Abstract: An air cleaner nightlight is provided according to the invention. The air cleaner nightlight includes an air cleaner including an external shell and a nightlight formed in the external shell. The nightlight includes one or more light emitting diodes (LEDs).

Abstract: A magnetic clutch is provided according to an embodiment of the invention. The magnetic clutch includes a shaft including a flange, a magnetic clutch hub installed on the shaft, with the magnetic clutch hub being magnetically responsive, and an actuator member that magnetically operates on the magnetic clutch hub and causes the magnetic clutch hub to frictionally contact the flange of the shaft. The contact transfers rotational power between the magnetic clutch hub and the shaft.

Abstract: An electrode wire retaining member for an electrostatic precipitator is provided according to an embodiment of the invention. The electrode wire retaining member includes one or more flexible arm portions extending from the body and formed of an at least partially flexible material. A flexible arm portion returns to a substantially normal configuration after being deformed. The electrode wire retaining member further includes a retaining portion formed on an outer end of a flexible arm portion and extending from the flexible arm portion. The electrode wire retaining member further includes a slot formed in the retaining portion and sized to accommodate an electrode wire. The retaining portion and the slot receive and hold a retaining body formed on an end of the electrode wire.

Abstract: A corona ground element for use in a pre-ionizer of an electrostatic precipitator is provided according to an embodiment of the invention. The corona ground element includes a substantially elongate body including a proximate end and a distal end and first and second projections formed on the proximate end and the distal end. The first and second projections are adapted to retain the corona plate in the electrostatic precipitator.

Abstract: An electrode wire for use in an electrostatic precipitator is provided according to an embodiment of the invention. The electrode wire includes a wire portion of a predetermined length L, a first end, and a second end. The electrode wire further includes retaining bodies formed on the first end and the second end of the wire portion. A retaining body of the retaining bodies is substantially solid.

Abstract: A retainer for use with a corona ground element of an electrostatic precipitator is provided according to an embodiment of the invention. The retainer includes a body and a retainer aperture extending at least partially through the body and adapted to receive a projection extending from the corona ground element. The retainer aperture is configured to receive the projection as a press fit.

Abstract: A pre-ionizer for use with an electrostatic precipitator is provided according to an embodiment of the invention. The pre-ionizer includes two or more corona ground elements arranged in a substantially parallel orientation. A corona ground element of the two or more corona ground elements includes a substantially elongate body including a proximate end and a distal end and first and second projections formed on the proximate end and the distal end. The first and second projections retain the corona ground element in the electrostatic precipitator. The pre-ionizer further includes one or more corona charge elements positioned between two adjacent corona ground elements of the two or more corona ground elements. When a high voltage electrical field is placed across the two or more corona ground elements and the one or more corona charge elements, the pre-ionizer at least partially ionizes airflow through the pre-ionizer.

Abstract: A tower ionizer air cleaner is provided. The tower ionizer air cleaner includes a tower chassis, with a base of the tower chassis including a small footprint, one or more airflow inlet openings in the tower chassis, one or more airflow outlet openings in the tower chassis and substantially opposite to the one or more airflow inlet openings, and an ionizer element positioned within the tower chassis. The tower ionizer air cleaner further includes one or more fan units substantially vertically located within the tower ionizer air cleaner and affixed to the tower chassis. The one or more fan units are configured to provide an airflow between the one or more airflow inlet openings and the one or more airflow outlet openings and through the ionizer element.

Abstract: An airflow sensor system for monitoring air inlet airflow and air outlet airflow of a vacuum cleaner is provided according to an embodiment of the invention. The airflow sensor system includes a vacuum cleaner air duct, a bypass tube connected to the air duct, and an airflow sensor positioned at least partially in the bypass tube. The airflow sensor is configured to generate a normal voltage differential range when the bypass tube airflow is within a predetermined normal airflow range, configured to generate an input blockage voltage differential range when the bypass tube airflow is greater than the predetermined normal airflow range, and further configured to generate an output blockage voltage differential range when the bypass tube airflow is less than the predetermined normal airflow range.

Abstract: A vacuum cleaner air/liquid separator is provided according to the invention. The separator includes an offset air/liquid airflow inlet for receiving an air/liquid airflow, with the offset air/liquid airflow inlet possessing a width and a height. The separator further includes a substantially cylindrical separator chamber communicating with the offset air/liquid airflow inlet, wherein the offset air/liquid airflow inlet is radially offset from the separator chamber. The separator further includes a lead-in track extending from the offset air/liquid airflow inlet and at least partially around the circumference of the separator chamber. The lead-in track tapers from substantially the width of the offset air/liquid airflow inlet into the separator chamber. The air/liquid airflow is entrained into a downward spiraling path in the separator chamber by the lead-in track.

Abstract: An integral vacuum cleaner bumper is provided according to an embodiment of the invention. The bumper includes a bumper shell formed of an at least partially resilient material and includes an inner surface that mates to the vacuum cleaner chassis and an outer surface. The bumper shell is affixed to the vacuum cleaner chassis as an integral component of the vacuum cleaner and the outer surface of the bumper shell becomes a portion of an outer surface of the vacuum cleaner. The bumper further includes one or more cavities formed along a bottom edge region of the bumper shell, one or more corresponding magnets designed to fit into the one or more cavities, a backing plate including one or more fastener apertures, and one or more fasteners that pass through the one or more fastener apertures of the backing plate and affix the backing plate to the bumper shell.