Abstract: A capsule beverage brewing system includes: a brewer body having an accommodating space, and a sensing device and a sensor installed on an inner surface of the brewer body; at least one capsule containing a concentrated beverage and having an identification code on an outer surface of the capsule and corresponsive to the type of beverage contained in the capsule; and a tray installed in the brewer body and having an accommodating portion for disposing the capsule, and a contact portion extended from a side of the tray, such that when the tray is pushed into the accommodating space, the contact portion pushes or presses the sensor for a brewing operation. The brewing system automatically identifies the type of capsule, so that users need not to adjust any brewing parameters to obtain a good tasted beverage in the brewing process.

Abstract: A smoke-stack filter device comprising a plurality of dual-corrugated-plate members disposed at circumferentially spaced apart relationship to one another in an annular space between a pair of coaxially arranged cylinders, said corrugations arranged such that they define a plurality of serpentine passageways extending longitudinally of the cylinders for flow of polluted gases upwardly therethrough, and a treatment liquid flows in a substantially constant quantity down from the top of said members along the corrugated surfaces of said members to form a liquid curtain to wash pollutants from polluted gases and flowing upwardly through the serpentine passageways between the adjacent corrugated members, the downwardly flowing treatment liquid carrying pollutants dissolved or suspended therein to a draining chamber, and the clear filtered gases flowing upwardly to and through vents at the upper ends of the passageways.