Method of positioning and sealing a bag in a vacuum chamber, bag positioning apparatus, and method of manufacturing a patch bag

A method of positioning and sealing a bag in a vacuum chamber, includes detecting a trailing edge of a product in the bag, detecting a trailing edge of a patch adhered to the bag, controlling advancement of the bag, and closing the bag. A bag positioning apparatus includes an infrared sensing appara...

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Bibliographische Detailangaben
Hauptverfasser:	McDonald, Gregory E, Painter, Max C, Iocco, Jeffrey R, Pruitt, Julian L
Format:	Patent
Sprache:	eng
Schlagworte:	CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS PACKING PERFORMING OPERATIONS STORING TRANSPORTING UNPACKING
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Beschreibung
Zusammenfassung:	A method of positioning and sealing a bag in a vacuum chamber, includes detecting a trailing edge of a product in the bag, detecting a trailing edge of a patch adhered to the bag, controlling advancement of the bag, and closing the bag. A bag positioning apparatus includes an infrared sensing apparatus, a fluorescence sensing apparatus, and a controller. A method of manufacturing a patch bag includes adhering a first patch to film stock, detecting a position of the first patch, aligning a second patch with the first patch, and adhering the second patch to the film stock. A method of manufacturing a patch bag includes detecting an edge of a patch adhered to film stock, forming a seal across the film stock adjacent to the edge of the patch, and severing the film stock adjacent to the edge of the patch.