Patent ID: 6957472

Claim:
A cannister-style toroidal vortex vacuum cleaner system utilizing a fluid flow, said cannister toroidal vortex vacuum cleaner comprising: a cannister-style vacuum cleaner housing; a centrifugal separator located within said housing; fluid delivery means fluidly coupled to said centrifugal separator; a toroidal vortex nozzle comprising; an outer tube fluidly coupled to said centrifugal separator at a proximal end, a distal end of said outer tube being open to the atmosphere; an inner tube coaxially positioned inside said outer tube, wherein a gap between said inner tube and said outer tube forms an annular delivery duct which receives said fluid flow from said fluid delivery means; and guide means to guide said fluid flow out of said annular delivery duct and into said inner tube, said guide means comprising an inner fairing positioned at a distal end of said inner tube; wherein said guide means guide said flow such that said flow has substantially the characteristics of a toroidal vortex, and further wherein said fluid flow does not escape substantially into the atmosphere outside of said outer tube.