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:
Nov. 06, 2018
Filed:
Jan. 02, 2007
Rüdiger Grosse-heitmeyer, Westerkappeln, DE;
Thomas Knoke, Bielefeld, DE;
Martin Koelker, Ibbenbueren, DE;
Ludger Schulten, Hopsten, DE;
Hans-ludwig Voss, Tecklenburg, DE;
Jan Thorsten Weber, Lengerich, DE;
Thomas Hawighorst, Hasbergen, DE;
Holger Frische, Hasbergen, DE;
Rüdiger Grosse-Heitmeyer, Westerkappeln, DE;
Thomas Knoke, Bielefeld, DE;
Martin Koelker, Ibbenbueren, DE;
Ludger Schulten, Hopsten, DE;
Hans-Ludwig Voss, Tecklenburg, DE;
Jan Thorsten Weber, Lengerich, DE;
Thomas Hawighorst, Hasbergen, DE;
Holger Frische, Hasbergen, DE;
WINDMOELLER & HOELSCHER KG, Lengerich, DE;
Abstract
A sack is formed by first transverse sealing seams from a foil tube, and is provided with at least a first vent channel, which runs largely parallel to the axis of the film tube, and whose inner film layer has first vent openings for venting of the sack interior into the first vent channel. A second vent channel is provided, which is connected to the first vent channel by second vent openings, and which, in turn, has third vent openings, which vent the at least one second vent channel.