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 7988401 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 02, 2011

Filed:

Jun. 24, 2010
Applicants:

Dennis Hall, Minneapolis, MN (US);

Michael Harris, Andover, MN (US);

Kal Ugargol, Minneapolis, MN (US);

Inventors:

Dennis Hall, Minneapolis, MN (US);

Michael Harris, Andover, MN (US);

Kal Ugargol, Minneapolis, MN (US);

Assignee:

Air-Cure, Incorporated, Minneapolis, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65G 67/50 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus for rotary dumping of rail cars, including a material receiving pit. A rotational frame is disposed at least partially in the pit, is configured to dump a load from a rail car during rotational motion. A backside airflow diverter is disposed within the pit along with a backside hood for removing contaminated air. At least one baffle contacts the upper surface of the backside airflow diverter during at least a portion of the rotational motion. The invention includes an end of hood close off panel extending substantially from a platen supporting wall to the backside air flow diverter or an end ring baffle that extends from a grizzly upwardly to approximately the perimeter of a supporting ring and from the backside airflow diverter toward a dump side of the pit whereby dust laden air is substantially prevented from escaping from the pit under the end ring baffle.


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