Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Richard A. Canapa0
Date of Patent
July 8, 2008
0Patent Application Number
117527980
Date Filed
May 23, 2007
0Patent Primary Examiner
Patent abstract
A conveying device comprising a conveyor belt, a conveyor belt speed sensor, at least one extending roller selectively extendable from the device, an extending roller speed sensor, a hydraulic motor operatively engaged with the conveyor belt, a proportional valve operatively coupled with the hydraulic motor for modulating the speed of the motor, and a controller operatively connected to the proportional valve for modulating the output thereof, the controller in communication with the belt speed sensor, and in communication with the extending roller speed sensor, the controller thereby controlling the speed of the motor to obtain a desired belt speed.
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