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. 17, 2015
Filed:
Oct. 01, 2008
Applicant:
Rickey E. Wark, Spring, TX (US);
Inventor:
Rickey E. Wark, Spring, TX (US);
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B07C 5/06 (2006.01); B07B 1/12 (2006.01); B07B 1/52 (2006.01); B08B 1/00 (2006.01);
U.S. Cl.
CPC ...
B07B 1/12 (2013.01); B07B 1/526 (2013.01); B08B 1/00 (2013.01);
Abstract
A lump coal size sorting grate comprising parallel bars is provided with three spaced apart, parallel cleaning combs which can be individually activated to clean the sizing grid of lodged coal lumps in a predetermined sequence so that the entire sizing grid is never closed during a coal sorting operation. The cleaning combs are made of spaced, parallel bars which can be pivoted upwardly, between and through the bars of the sizing grate. An adaptive system which senses and responds to a clogged condition in the grate can be provided by sensing crusher motor current or, in the alternative, sensing grate bar deflection using strain gage transducers.