Abstract: A circulation type water purifier prevents production of bacteria and microbes by periodically circulating water and also increases pump life and reduces pump costs by varying circulation times depending on an amount of water used. The purifier includes a filter 100; a purified water storage tank 200; a cold/hot water supply tank 300 having respective outlets for hot and cold water and drain outlets; a sterilizer 900; and a pump 400. Under control of a microcomputer, the pump periodically circulates water through various circulation piping.
Abstract: There is provided a circulation type water purifier which maximally prevents production of bacteria and microbes by periodically circulating water in the water purifier, and improves lifetime and power saving of a pump by varying the number of circulation times depending on an amount of water used.
Abstract: A DVD player with a monitor is disclosed, for being automatically or manually opened and closed, which includes a base; a monitor being rotatably connected with the base; and a rotating device being connected with a motor of the base for turning the monitor, and having slip members of forming slip surfaces for turning the monitor by a predetermined external force.