Filterless folded and ripple dust separators and vacuum cleaners using the same

An apparatus for separating matter from fluid flow comprising:

• a passage, wherein said passage redirects said fluid flow;
• at least one collector;
• and
• at least one slot providing an opening between said collector and said passage;
• whereupon redirection of said fluid flow, said matter is ejected into said collector;
• and wherein said apparatus can be constructed such that the cross-sectional area of said fluid flow does not restrict said radius of curvature.

A method of removing matter from fluid flow comprising the steps of:

• redirecting said fluid flow such that said matter is ejected from said fluid flow;
• and
• collecting said matter such that said fluid flow continues with less of said matter;
• wherein the cross-sectional area of said fluid flow does not restrict the radius of curvature of said redirecting.

An apparatus comprising:

• an entrance for fluid;
• guide means that guides said fluid;
• and
• fluid delivery means that effects flow of said fluid;
• whereupon traveling through said guide means, said fluid flow is redirected, thereby expelling said matter therefrom;
• and wherein said apparatus can be constructed such that the cross-sectional area of said fluid flow does not restrict the radius of curvature of said redirection.

An apparatus comprising:

• a nozzle through which fluid may enter;
• fluid delivery means that effects flow of said fluid;
• at least one guide vane that guides said fluid flow;
• and
• at least one collector;
• whereupon traveling through said guide means, said fluid flow is redirected, thereby expelling matter from said fluid flow into said collector;
• and wherein the pressure in said collector is greater than the pressure in said fluid flow such that the redirecting path of said fluid flow is maintained while matter is still capable of entering said collector;
• and wherein said apparatus can be constructed such that the cross-sectional area of said fluid flow does not restrict the radius of curvature of said redirection.

A method for separating matter from fluid comprising the steps of:

• moving fluid flow through a system;
• redirecting said fluid flow at least one time, whereupon said redirecting, said fluid flow ejects said matter into a collector;
• and
• creating a higher pressure in said collector than in said fluid flow such that the redirecting path of said fluid flow is maintained while matter is still capable of entering said collector;
• and wherein the cross-sectional area of said fluid flow does not restrict the radius of curvature of said redirecting.