| Hytrol Conveyor Company, Inc. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110297509 | CONVEYOR SYSTEM AND METHOD FOR ACCUMULATING PACKAGES OF VARYING LENGTHS - A drive controller for controlling movement of a plurality of packages by an accumulation conveyor. The drive controller is configured to determine a length of each of the packages and to coordinate driving of a number of zones needed to accommodate the package. For example, a sensor in each of the conveyor zones communicates blockage by the packages to the drive controller. The drive controller determines a sequence of blockage of the sensors in adjacent zones. Blockage of the sensor in an upstream zone before the sensor in a downstream zone indicates an oversized package that extends longer than a zone length of the downstream zone and into the upstream zone. The drive controller is configured to drive the downstream zone and upstream zone simultaneously when detecting the oversized package. | 12-08-2011 |
| 20090301839 | CONVEYOR SYSTEM AND METHOD FOR ACCUMULATING PACKAGES OF VARYING LENGTHS - A drive controller for controlling movement of a plurality of packages by an accumulation conveyor. The drive controller is configured to determine a length of each of the packages and to coordinate driving of a number of zones needed to accommodate the package. For example, a sensor in each of the conveyor zones communicates blockage by the packages to the drive controller. The drive controller determines a sequence of blockage of the sensors in adjacent zones. Blockage of the sensor in an upstream zone before the sensor in a downstream zone indicates an oversized package that extends longer than a zone length of the downstream zone and into the upstream zone. The drive controller is configured to drive the downstream zone and upstream zone simultaneously when detecting the oversized package. | 12-10-2009 |
