EP0643986A1 — Suction/filtration apparatus of gas

USPTO Abstract

The object of the present invention is to provide a suction/filtration apparatus which is extremely simple in construction because an extremely simple principle is utilized, has rather higher performance as a filter than conventional apparatuses, and can drastically improve various air pollution problems which are being posed at present. A liquid filter agent (2) is stored in a sealed container (1) in such a manner as to leave an upper space (3), a gas inlet pipe (4) for introducing a gas to be filtrated into the filter agent (2) is disposed in such a manner that the front end of the pipe (4) is positioned outside the container and the rear end of the pipe is immersed in the filter agent (2). A gas outlet pipe or gas suction means (5) for applying a suction force to the upper space (3) of the container (1) is allowed to communicate with the space so as to constitute a liquid filter.