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.
Patent No.:
Date of Patent:
May. 17, 1994
Filed:
Aug. 20, 1992
Applicant:
Inventor:
J Donald Brock, Chattanooga, TN (US);
Assignee:
Astec Industries, Inc., Chattanooga, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27B / ;
U.S. Cl.
CPC ...
432139 ; 432148 ; 432151 ; 432171 ; 432188 ; 110224 ;
Abstract
An apparatus for heating and conveying a granular material is disclosed, and which comprises an elongate trough, and a framework mounting a plurality of transverse blades mounted above the trough. The framework is moved along a closed path of travel so that the blades move through a forward stroke, a lifting stroke, a return stroke, and a downward stroke which returns the blades to their original position. Thus a granular material may be moved along the length of the trough in a series of sequential steps. Also, the blades are internally heated, and the bottom wall of the trough is also heated, to effect heating of the advancing granular material.