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:
Mar. 31, 2020

Filed:

Mar. 27, 2018
Applicant:

Ronning Engineering Company, Inc., Leawood, KS (US);

Inventor:

Richard Ronning, Leawood, KS (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F26B 11/02 (2006.01); F26B 11/04 (2006.01);
U.S. Cl.
CPC ...
F26B 11/045 (2013.01); F26B 11/022 (2013.01); F26B 11/028 (2013.01); F26B 11/0477 (2013.01); F26B 11/026 (2013.01);
Abstract

A single pass, multiple stage, rotary drum heat exchange dryer () is provided for drying products such as distillers grains and includes a tubular shell () with a moist product inlet (), an opposed dried product outlet (), and an internal drying chamber (). The chamber () includes a convection drying first stage (), and conductive drying final curing stage () an intermediate stage (); the intermediate stage () is subdivided into a plurality of contiguous drying zones (-). The zones (-) include individual flighting assemblies () which are of substantially the same density and heat transfer ratios.


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