Conveyor with belt to roller synchronization mechanism
AssigneeNMC-Wollard, Inc.
InventorRichard A. Canapa
Life of this patent
Estimating the term…
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.
Claims20
A conveying device comprising:
- a conveyor belt;
- a conveyor belt speed sensor;
- at least one extending roller selectively extendable from said device;
- an extending roller speed sensor;
- a hydraulic motor operatively engaged with said conveyor belt;
- a proportional valve operatively coupled with said hydraulic motor for modulating the speed of said motor;
- and
- a controller operatively connected to said proportional valve for modulating the output thereof, the controller in communication with said belt speed sensor, and in communication with said extending roller speed sensor, said controller thereby controlling the speed of the motor to obtain a desired belt speed.
A conveying device comprising:
- a portable conveyor bed having a first end and an opposite second end, said conveyor bed tiltable from a resting mode to an incline mode;
- a conveyor belt operatively engaged with at least one belt roller of said conveyor bed;
- at least one extending roller selectively extendable from said device and retractable into said device beneath said conveyor belt;
- an extending roller speed sensor;
- a hydraulic system including a hydraulic motor operatively engaged with said conveyor belt at said at last one belt roller;
- and
- a controller in communication with said extending roller speed sensor and in communication with said hydraulic system, said controller thereby controlling the speed of said motor to obtain a desired belt speed.
A conveying device comprising:
- a conveyor belt coupled with an elevating conveyor bed, said conveyor bed connected to a vehicle;
- means for sensing the speed of said conveyor belt;
- a plurality of extending rollers selectively extendable from said device, at least one of said extending rollers including a roller;
- means for sensing the speed of said roller;
- a hydraulic motor operatively engaged with said conveyor belt;
- a proportional valve operatively coupled with said hydraulic motor, said proportional valve capable of modulating the speed of said motor;
- and
- a controller operatively connected to said proportional valve for modulating the output thereof, the controller in communication with said means for sensing the speed of said conveyor belt, and in communication with said means for sensing the speed of said roller, said controller thereby controlling the speed of the motor to obtain a desired belt speed.
Dependencies are inferred from the claim text.