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:
Nov. 07, 2017

Filed:

May. 08, 2015
Applicant:

Joy MM Delaware, Inc., Wilmington, DE (US);

Inventor:

Gareth Rimmington, Barnsley, GB;

Assignee:

Joy MM Delaware, Inc., Wilmington, DE (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65G 43/00 (2006.01); B65G 23/44 (2006.01); E21F 13/06 (2006.01);
U.S. Cl.
CPC ...
B65G 43/00 (2013.01); B65G 23/44 (2013.01); E21F 13/06 (2013.01);
Abstract

A conveyor for a mining system. The conveyor includes a sprocket, a chain, a drive mechanism, a hydraulic cylinder, and a controller. The chain is associated with the sprocket and has a top chain portion and a bottom chain portion. The drive mechanism is coupled to the sprocket and is operable to drive the sprocket. The controller includes a processing unit and a memory. The controller is configured to receive a first signal related to a characteristic of the drive mechanism, receive a second signal related to a reaction force of the sprocket, calculate a tension of the top chain portion based on the first signal and the second signal, and generate a control signal for controlling a position of the hydraulic cylinder based on the determined tension of the top chain portion.


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