Spiral conveyor apparatus with automatic flow control

  • US 20010004958A1
  • Filed: 02/05/2001
  • Published: 06/28/2001
  • Est. Priority Date: 08/19/1997
  • Status: Active Grant
First Claim
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1. A conveyor apparatus for moving articles, the conveyor comprising:

  • a plurality of conveyor segments arranged as a spiral having an entry point and an exit point;

    a plurality of freely rotating nondriven roller devices mounted in each conveyor segment;

    a plurality of driven powered roller devices, each driven powered roller device is individually controllable to selectively rotate in a transport mode for moving articles from the entry point to the exit point without accumulating the articles and to rotate in a mode other than the transport mode;

    a plurality of sensors, at least one of the plurality of sensors disposed in a respective one of the conveyor segments; and

    a control unit connected to each of the driven powered roller devices and to each of the sensors.

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