Abstract: A filter-purifier cartridge arranged so that a manually separable and manually replaceable hollow cylindrical purifier element is axially positioned and coupled to one end section of a tubular filter, the purifying medium within said purifier element contained between two removable and replaceable foraminous members, said members being optionally capable of manual removal and manual replacement; the filtering efficiency offered by radial flow through the wall of the filter element combined with an axial flow within the purifier element.

Abstract: A flow preconditioner for an electrostatic precipitator which removes particulate matter from a stream of polluted gas immediately after it passes through a tangential inlet at the lower end of a vertical cylindrical housing and straightens and divides the stream into laminations parallel to the axis of the housing. It comprises an annular ledge or choke ring extending inwardly from said housing above the inlet and an assembly of vanes above said ledge extending radially from the axis of the housing and angularly spaced apart. Each of said vanes has a flow receiving edge directed toward said inlet, a curved portion extending upwardly and away from said inlet, and a flat portion extending upwardly from said curved portion in a plane parallel to the housing axis.

Abstract: A self-acting device for filtering the smoke commonly associated with cigarettes and cigars includes an ashtray which supports a shroud for confining smoke. The shroud in turn supports a motorized fan which creates a flow of air to carry the smoke. In close proximity to the fan and also supported by the shroud is a detector which acts to sequentially sense the smoke and activate the fan motor. A portion of the detector also serves to separate a certain amount of the smoke from the air. Smoke which remains is further drawn upwards by the suction forces created by the fan through a filter before the filtered air is ultimately propelled into the immediately surrounding environment.

Abstract: A pollution control device having a tank provided with an inlet and an outlet arranged for passing a gaseous medium to be cleaned into the tank and through a bath of washing solution held in the tank. A blower unit, mounted outside of the tank, forces the gaseous medium through the bath. A line connecting the blower unit to the bath passes a quantity of washing solution through the blower unit for cooling the unit. Baffles are arranged partially immersed in the bath in the tank for creating a large surface across the gaseous flow and facilitating separation of particulate matter from the medium being cleaned. The baffles are advantageously in the form of a plurality of cylinders each constructed from a mesh material and tiered in one or more substantially vertical channels arranged within the tank.

Abstract: Apparatus for removing moisture such as oil and water vapor from compressed gases such as air with less decrease in pressure by conventional filter means by providing a relatively coarse annular filter to condense the major portion of such moisture by gases passing downward therethrough to afford drainage of condensate by gravity before the gases pass upward through coaxial interior desiccant filter means to remove any residual moisture before the moisture free gases are discharged from the upper end of the desiccant filter means. The coarse filter is contained between transparent outer and inner containers and the desiccant filter means is contained within the transparent inner container so as to extend upwardly above the upper end of the coarse filter such that the condition of both the coarse filter and desiccant filter means is visually observable.

Abstract: A gas stream with entrained liquid is given a helical motion which causes the entrained liquid to impinge and coalesce on the wall of a separation chamber, with gases being discharged through a tailpipe which extends inwardly into the downstream end of the separation chamber. A closed second chamber surrounds the tailpipe downstream of the separation chamber. Aperture means in the tailpipe permits communication between the interiors of the second chamber and the tailpipe. A conduit means, provided downstream of the aperture means but within the tailpipe, is arranged to permit communication between the center of the tailpipe and the interior of the second chamber tending to equalize pressures so as to cause any residual liquid collected on the interior surface of the tailpipe to flow out of the tailpipe through the aperture means.

Abstract: An odor masking ashtray is constituted by an ashtray provided with openings in its side for the insertion of cigars, cigarettes and pipes serving as a base supporting a housing in which is mounted a fan positioned between two filters so that smoke and other objectionable odors may be drawn upwardly from the ashtray through the filters and in the process filtered out of the air and/or masked.