Kenneth W Sims

US Patent:

55186750, May 21, 1996

Filed:

Mar 8, 1995

Appl. No.:

8/400670

Inventors:

Kenneth M. Sims - Irving TX

Assignee:

York Chemical Corporation - Irving TX

International Classification:

B01F 1502
B29C 4302

US Classification:

264122

Abstract:

A method and apparatus is provided for intimately intermixing a first finely divided dry material into a second finely divided dry material to produce a dry blend of the two materials. In a specific application, the method and apparatus provide an improved means for introducing an homogeneously distributing a dry powdered lubricant into a dry powdered material (such as chlorine) which is to be shaped into a molded article. The means for forcibly introducing the powdered additive into the powdered material which is to be molded into a tablet form may comprise a mechanical device such as a screw type conveyer, e. g. , an auger or other suitable mechanical means or it may comprise a pneumatic device which propels the powdered additive into the body of the dried, finely divided material to produce a dry blend.