The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 14, 1977

Filed:

Oct. 03, 1975
Applicant:
Inventors:

Michael J Theodore, Weston, MA (US);

Malcolm M Paterson, Atkinson, NH (US);

William J Paxson, Cedar Rapids, IA (US);

Assignee:

Raytheon Company, Lexington, MA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B07B / ;
U.S. Cl.
CPC ...
209 11 ; 209152 ; 34132 ; 432112 ;
Abstract

A rotary drum air classifier apparatus for separating light and heavy materials introduced into the drum by conveyor means, means for producing a flow of air at relatively high velocity through the drum for entraining light materials, heating means encircling the drum for radiatively heating the drum and drying materials therein during the separation process, and means at one end of the drum for heating air as it enters the drum for further assisting in the drying process.


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