Method of adjusting conveyor belt scrapers and open loop control system for conveyor belt scrapers
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United States of America Patent
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Jun 26, 2012
Grant Date -
Feb 9, 2012
app pub date -
Aug 6, 2010
filing date -
Aug 6, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A bulk material handling system comprises a bulk material handling apparatus to convey bulk material, and a bulk material handling accessory that aids in the operation of the bulk material handling apparatus. The bulk material handling accessory comprises a controller having one or more sensors. The controller comprises a processor and a computer readable memory capable of: (i) generating a control signal indicative of an operating condition of the bulk material handling accessory during a cycle of operation of the accessory; (ii) storing in the memory of the controller a limit associated with an operating condition of the accessory; (iii) comparing the control signal to the limit; (iv) generating a signal indicative of an abnormal event associated with the operating condition when the control signal is beyond the limit; and (v) generating a response signal when a number of abnormal event signals generated exceeds a predetermined level of abnormal events.
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