Conveyors: power-driven – Conveying system having plural power-driven conveying sections – With condition responsive control of a section
Reexamination Certificate
2005-02-01
2005-02-01
Tran, Khoi H. (Department: 3651)
Conveyors: power-driven
Conveying system having plural power-driven conveying sections
With condition responsive control of a section
C198S502200, C198S530000, C198S577000
Reexamination Certificate
active
06848568
ABSTRACT:
A method, apparatus and software product for moving bulk materials effectively through a path gate in a distribution system provides at least two independently operable conveyors aligned in series such that the end of the first conveyor is adjacent to the beginning of the second conveyor with a pass gate positioned downstream of the two conveyors. In cases where the bulk material has formed into a cohesive block, the first conveyor is operated to bring the block near the second conveyor. Then, the first conveyor is slowed or stopped while the second conveyor is operated at a higher speed than the first conveyor. This action causes the portion of the cohesive block adjacent to the second conveyor to topple or break down, thereby breaking down the cohesiveness of the block and directing a portion of this toppled bulk material forward onto the second conveyor. Then, the second conveyor urges this portion of the bulk material toward the downstream path gate. Accordingly, the broken down portion of the bulk material passes freely through the path gate. In a preferred embodiment, the height of the bulk material is sensed to determine if it has formed into a semi-solid cohesive block and the first and second conveyors and the pass gate are actuated and in communication with a computer system having software for automatically performing these steps.
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Ipsolon LLP
Tran Khoi H.
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