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.:

US 8157193 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 17, 2012

Filed:

Jan. 12, 2010
Applicants:

David M. Avant, Jr., Sandersville, GA (US);

Riley D. Robbins, Beckley, WV (US);

Inventors:

David M. Avant, Jr., Sandersville, GA (US);

Riley D. Robbins, Beckley, WV (US);

Assignee:

Robbins & Avant Mineral Ventures, LLC, Sandersville, GA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A waterless method of processing coal to remove impurities therefrom includes drying a batch of coal to remove moisture therefrom, pulverizing the coal into individual coal particles to liberate impurity particles from the coal and without substantially reducing the size of the impurity particles, and separating the impurity particles and pulverized coal particles into respective product streams via air classification. The dryer includes a plurality of rotating paddles, and an air stream forces the coal through the plurality of rotating paddles to pulverize the coal into individual particles and liberate the impurities.


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Avant, Jr., David. (2012). Waterless separation methods and systems for coal and minerals (U.S. Patent No. 8157193). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8157193

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