Abstract: A coating system, a paper machine, and methods of their use are provided.

Abstract: A coating system, a paper machine, and methods of their use are provided.

Abstract: In accordance with one embodiment of the present invention, a system for controlling the properties of an extrusion from a production line is provided. The production line comprises a raw material feed, a mixer, and an extruder. The control system comprises one or more ammeters electrically coupled to an electrically driven mixing motor and an electrically driven extrusion motor. Output signals indicative of the load amperes IM of the mixing motor and the load amperes IX of the extrusion motor are provided. The controller is in communication with the raw material feed and the ammeter and is programmed to compare the load amperes IX of the extrusion motor to the load amperes IM of the mixing motor and determine whether a result of the load ampere comparison warrants modification of an operating parameter of the production line. If so, the controller modifies one or more operating parameters of the production line to account for the variation from the target value.

Abstract: In accordance with one embodiment of the present invention, a system for controlling the properties of an extrusion from a production line is provided. The production line comprises a raw material feed, a mixer, and an extruder. The control system comprises one or more ammeters electrically coupled to an electrically driven mixing motor and an electrically driven extrusion motor. Output signals indicative of the load amperes IM of the mixing motor and the load amperes IX of the extrusion motor are provided. The controller is in communication with the raw material feed and the ammeter and is programmed to compare the load amperes IX of the extrusion motor to the load amperes IM of the mixing motor and determine whether a result of the load ampere comparison warrants modification of an operating parameter of the production line. If so, the controller modifies one or more operating parameters of the production line to account for the variation from the target value.

Abstract: A glue detecting system uses linear filament lamps and photodiodes mounted in the ends of nonreflective tubes to distinguish between diffuse and specular reflections from the surface of a moving article. Sensor photodetectors are positioned directly over the locations where glue beads are intended to be present; reference photodiodes observe the surface where no glue is intended. The spacing between certain photodiodes in the direction of movement of the article may be used to determine the velocity of the article, and the intensity of the reflections is used to determine the presence of glue in the desired areas, and the presence of unwanted glue in other areas; the duration of the specular reflections is used to determine the volume of glue present. An alarm circuit indicates an insufficient amount of glue in the desired areas or the presence of unwanted glue in undesired areas.