Spiral conveyor apparatus with automatic flow control

  • US 6,659,268 B2
  • Filed: 03/19/2002
  • Issued: 12/09/2003
  • Est. Priority Date: 08/19/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A conveyor apparatus, comprising:

  • a spiral path formed from a plurality of conveyor segments fastened together, including curved conveyor segments;

    a powered roller mounted in each of a plurality of the conveyor segments, each powered roller being individually powered and individually controllable for selected rotation alternatively in a forward travel direction or in a reverse travel direction;

    a sensor in a plurality of the conveyor segments; and

    a control unit connected to at least one of the powered rollers and to at least one of the sensors.

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