Patent ID: 6572261
Filing Date: 2003-06-03
Classification: B01F,Y10S

Abstract:
An agitator assembly for mounting in a wall of a storage tank, said agitator assembly comprising:a body member extending through said wall of said storage tank, said body member including a seal assembly that is in communication with a fluid source; a rotatable shaft extending longitudinally through said body member, said shaft extending from a distal end to an engagement end and having a substantially smooth inner surface adjacent said distal end; an impeller secured to said distal end of said shaft; a collar positioned on said engagement end of said shaft; an input device in communication with said shaft for supplying power to rotate said shaft; and a resilient member positioned over said shaft between said input device and said collar; whereby when a fluid is injected into said body, the fluid pressure increases until the pressure overcomes the biasing force of said resilient member and causes said shaft to move in an axial direction permitting the fluid to escape the body under pressure to effectively clean the impeller.