The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 2014
Filed:
Jun. 02, 2011
Andreas Lamkemeyer, Georgsmarienhuette, DE;
Achim Seeberger, Lengerich, DE;
Andreas Lamkemeyer, Georgsmarienhuette, DE;
Achim Seeberger, Lengerich, DE;
Windmoeller & Hoelscher KG, Lengerich, DE;
Abstract
A device for the production of tubes or sections of tubes having at least one paper layer, from which paper bags can be manufactured, includes an unwinder device for unrolling at least one material web from a material web roll, a device for the provision of at least one edge region of each material web with glue, and a tube forming device via which the edge region provided with glue can be inverted onto, and attached to, a second edge region. The tubes or sections of tube can be provided with air-permeable channels in the device. The device for providing at least one edge area of each material web with glue has glue application valves, with at least two glue application valves being functionally assigned to each material web, and with noncontinuous glue tracks being produced with the glue application valves such that interruptions therein form the air-permeable channels.