Patent ID: 6074085
Filing Date: 2000-06-13
Classification: B01F,B05B

Abstract:
A mixer for mixing at least two different ingredients that are in the form of dry powder or granular including an outer housing having a straight through passage, an inner housing within said outer housing having a straight through passage and being radially spaced from said outer housing for defining an annular passage and having an inlet and an outlet, means for closing off the ends of said annular passage to define a cavity for receiving mixing air, a plurality of apertures formed in said inner housing for admitting air in said straight through passage of said inner housing and each having a contour for imparting a swirling motion to the air passing therethrough, said plurality of apertures being disposed in said inner housing to define a helical path extending from adjacent to the inlet towards the outlet of said straight through passage of said inner housing, an air inlet attached to the outer housing and disposed adjacent to but spaced upstream from the first aperture of said plurality of apertures for admitting air into said cavity and means for admitting said two different ingredients into said inlet of said inner housing.