US Patent 7748893 Magnetic stirring arrangement

An enclosed magnetic stirring bar arrangement includes a housing formed by front and rear walls interconnected by a peripheral wall, so as to define a substantially hollow interior chamber within said housing. An operational opening is formed within the front wall and at least one discharging aperture is provided in the peripheral wall. A magnetic stirring member is movably positioned within the substantially hollow interior chamber, whereby rotational motion of the magnetic stirring member facilitates entering a liquid into the substantially hollow interior chamber and discharging the liquid from the interior chamber through the at least one discharging aperture.