Patent ID: 7331702

Claim:
An agitation mixer, comprising: a casing having a first casing portion and a second casing portion, the casing including a flow channel through which a fluid passes; a powder inlet into said first casing portion, the powder inlet attaching to a powder feeding apparatus for feeding a powder into the casing; a liquid inlet into said second casing portion, the liquid inlet attaching to a liquid feeding apparatus for feeding a liquid into the casing; and an agitator body comprising (i) a shaft installed inside the casing, connected to a vibration device that vibrates the shaft, and connected to a rotation device that rotates the shaft, and (ii) an agitation blade attached to the perimeter of the shaft, the agitation blade comprising a first agitation blade portion and a second agitation blade portion, wherein the first casing portion accommodates the first agitation blade portion and the second casing portion accommodates the second agitation blade portion, and the first agitation blade portion has a blade diameter smaller than a blade diameter of the second agitation blade portion.