Patent ID: 7080695

Claim:
A fire extinguisher, comprising: a main body filled with a prescribed quantity of extinguishing agent and pressure gas with a prescribed level of pressure; a head detachably fastened to an end of the main body; a pair of levers provided at predetermined portions of the head; and an extinguishing hose, with a first end of the extinguishing hose communicating with an inside of the main body while a second end of the extinguishing hose extending to an outside of the main body, thus allowing the extinguishing agent to be injected to the outside of the main body through the extinguishing hose; wherein the main body comprises: an upper combining part having at a first end thereof a thread to allow the head to be fastened to the upper combining part in a screw-type fastening method; a bottom support part supported on a support surface; and a middle part provided between the upper combining part and the bottom support part, the middle part comprising: an observation window longitudinally provided along a sidewall of the middle part of the main body so that opposite ends of the observation window are placed near the upper combining part and the bottom support part, respectively, the observation window allowing a user to observe the extinguishing agent filled in the main body; and a pressure gauge provided in the middle part of the main body so that the user observes the pressure gauge through the observation window, the pressure gauge being elastically deformed by the pressure of the pressure gas filled in the main body, thus indicating the pressure of the pressure gas.