Abstract: An apparatus for purifying gaseous fluids is suggested, comprising a body surrounded by separator areas (18, 20) through which the fluids are flowing. The separator areas (18, 20) here are composed of interlacing profile sections, causing an acceleration or, resp. deceleration of the fluids flowing through.

Abstract: A separator for fluids having first and second section parts arranged in rows. The parts are, in cross section, open and trough-shaped, with edges which overlap. Each section part has an inner protrusion extending in the longitudinal direction thereof, which protrusion causes increased swirling and thus cleaning of the fluids flowing through the section parts. The section parts can be retained in a detachable manner in a holder to permit easy cleaning.

Abstract: A separator for fluids having first and second section parts arranged in rows. The parts are, in cross section, open and trough-shaped, with edges which overlap. Each section part has an inner protrusion extending in the longitudinal direction thereof, which protrusion causes increased swirling and thus cleaning of the fluids flowing through the section parts. The section parts can be retained in a detachable manner in a holder to permit easy cleaning.

Abstract: A system for increasing the fire resistance of support ceilings and limiting damage caused by water as a result of fire-extinguishing operations to the respective localities. The system including a suspended fire resistant covering with sprinkler elements, the covering being composed of arched ceiling elements along which the liquid travels, the ceiling elements having side edges accommodated by collecting channels which receive the liquid coming from the sprinkler elements. A distance is maintained between side edges and the walls of the collecting channels for liquid flow into the channels and exhaust air flow upward through the covering.

Abstract: A planar condensor array 10 comprises two rows 12, 14 of generally U-shaped, hollow, alternately disposed, interleaved elements 16 disposed transversely to a flow of gas 18 containing condensable contaminants and/or entrained particles. A cold fluid is supplied to the elements to promote condensation and precipitation, and when a surface layer builds up a hot fluid is supplied to "thaw" and drain the layer in a self-cleaning manner.

Abstract: A subceiling 10 for kitchens and the like includes upwardly arched condenser panels 12 whose free edges are disposed above hollow, U-shaped collecting channels 14. The interiors of the channels may be supplied with cold water to promote condensation or with hot water to melt and drain off fatty deposits.

Abstract: A false ceiling (10) includes a plurality of concave panels (12, 60) having liquid spray nozzles (40, 62) at their crowns. The liquid streams down the undersides of the panels to collecting channels (16) and carries with it particles of dirt, grease, etc., entrained in vapors from kitchen burners or the like below. Air is exhausted through the spaced openings between the edges (14) of the panels and the sides (18) of the collecting channels.