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:
Mar. 13, 2007
Filed:
May. 09, 2005
Charles L. Stock, Eagan, MN (US);
Peder K. Langsetmo, Robinsdale, MN (US);
Gregory J. Kimball, Circle Pines, MN (US);
David L. Phillips, Shoreview, MN (US);
Charles L. Stock, Eagan, MN (US);
Peder K. Langsetmo, Robinsdale, MN (US);
Gregory J. Kimball, Circle Pines, MN (US);
David L. Phillips, Shoreview, MN (US);
Bepex International, LLC, Minneapolis, MN (US);
Abstract
A continuous gravity flow apparatus for heating and/or drying of particulate material is vertically disposed and is provided with an inlet at the top and an outlet at the bottom. The apparatus includes a flow passage for the particulate material which is defined between an outer housing and an inner housing. Each of the outer and inner housing defines perforated wall sections allowing for the flow of hot gas through the wall of one housing, into contact with the particulate material, and then out through the wall of the other housing. Manifolds are associated with the outer and inner housings to provide for uniform flow of the gas through the material. The perforated wall sections are positioned and designed to enhance particle-to-particle movement of the material to thereby avoid particle sticking and bridging problems.