Patent ID: 7553065
Filing Date: 2009-06-30
Classification: B01F,Y10S

Abstract:
1. A mixing structure for use in mixing fluid comprising: a shaft extending along an axis; a first support mounted to said shaft for rotation therewith, said first support having a top side and a bottom side, a number of first vanes mounted for rotation with said first support and extending outwardly from said top side of said first support, said first vanes having an inner edge and an outer edge, said first vanes having a first end and a second end, said first vanes spaced apart from one another and defining openings there between through which fluid may flow, said first ends of said first vanes connected to said first support and said first vanes at said second ends thereof defining a first open end of said mixing structure; and a second support selectively connected to said first support, said second support having a top side and a bottom side, said top side of said second support positioned adjacent to said bottom side of said first support when said second support is connected to said first support, a number of second vanes mounted for rotation with said second support and extending outwardly from said bottom side of said second support in generally an opposing direction from said first support and said first vanes, said second vanes having an inner edge and an outer edge, said second vanes having a first end and a second end, said second vanes spaced apart from one another and defining openings there between through which fluid may flow, said first ends of said second vanes connected to said second support and said second vanes at said second ends thereof defining a second open end of said mixing structure.