Conveyors: power-driven – Conveyor section – Endless conveyor
Reexamination Certificate
2008-05-29
2009-11-24
Bidwell, James R (Department: 3651)
Conveyors: power-driven
Conveyor section
Endless conveyor
C198S794000, C198S832100, C198S502100
Reexamination Certificate
active
07621392
ABSTRACT:
A carousel according to the invention uses a number of smaller, less expensive drive units at different locations along the carousel path in place of a single larger drive unit of comparable capacity. Closed loop control according to the invention allows individual drives to be de-energized when the power requirements do not demand their usage. When not energized, the drives may be disengaged from the chain, such as by way of a linear actuator as described hereafter. Benefits of such a system include reduced mechanical costs, longer drive life, better redundancy/higher availability, correct drive power, lower energy use, closed loop system monitoring and reduced collateral damage.
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Langsdorf John L.
Valencic Gojko
Bidwell James R
Siemens Industry Inc.
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