Patent ID: 6033502
Filing Date: 2000-03-07
Classification: A61F,B65H

Abstract:
A process for controllably registering a plurality of components of a continuously moving first layer with a plurality of components on a continuously moving second layer, comprising the steps of:providing a continuously moving first layer including a plurality of components,providing a continuously moving second layer including a plurality of components being represented with a respective plurality of reference marks,elasticizing the continuously moving second layer,sensing each of the reference marks and generating a reference mark signal in response thereto,measuring the distance between two successive reference mark signals and generating a repeat corrective control signal in accordance with preprogrammed instructions,relaxing the continuously moving elasticized second layer in response to a generated repeat corrective control signal to adjust the distance between two successive reference marks,superimposing the continuously moving first layer and the continuously moving elasticized second layer together,sensing a reference mark of the continuously moving elasticized second layer and its corresponding component of the continuously moving first layer, and generating a placement corrective control signal in accordance with preprogrammed instructions, andregistering a reference mark on the continuously moving elasticized second layer with its corresponding component on the continuously moving first layer.