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:
Sep. 05, 1989
Filed:
Nov. 14, 1988
Gordon R Winkel, Fort McMurray, CA;
David K Lamb, Edmonton, CA;
Alberta Energy Company Ltd., Calgary, CA;
Canadian Occidental Petroleum Ltd., Calgary, CA;
Esso Resources Canada Limited, Calgary, CA;
Gulf Canada Resources Limited, Toronto, CA;
Her Majesty the Queen in right of the Province of Alberta as represented, , US;
HBOG-Oil Sands Limited Partership, Calgary, CA;
Pan Canadian Petroleum Limited, Calgary, CA;
Petro-Canada Inc., Calgary, CA;
Abstract
A system is provided for controlling the feed rate of material being loaded onto a conveyor train of variable configuration to prevent overloading. The system involves monitoring the power drawn by the various drive motors of the train to establish which is the limiting conveyor under prevailing operating conditions. The instantaneous weight of feed material loaded onto the conveyor train, at its input end, is continuously measured and the current average feed rate is computed from the instantaneous weights measured over a pre-set time interval. A rolling average of the total load to be carried by the limiting conveyor downstream is computed from the average feed rate, taking into account the length of the limiting conveyor. The feed rate is then adjusted in response to the computed rolling average to thereby avoid overloading the limiting conveyor and optimize loading of the conveyor train.