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:
Dec. 08, 2015
Filed:
Aug. 15, 2011
Applicant:
Uwe Koehn, Osnabrueck, DE;
Inventor:
Uwe Koehn, Osnabrueck, DE;
Assignee:
WINDMOELLER & HOELSCHER KG, Lengerich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D 33/16 (2006.01); B31B 29/00 (2006.01); B65D 30/18 (2006.01); B65D 33/01 (2006.01); B31B 21/00 (2006.01);
U.S. Cl.
CPC ...
B65D 33/1658 (2013.01); B31B 21/00 (2013.01); B31B 29/00 (2013.01); B65D 31/08 (2013.01); B65D 33/01 (2013.01); B65D 33/1691 (2013.01); B31B 2219/90 (2013.01); B31B 2221/20 (2013.01); B31B 2221/40 (2013.01); B31B 2221/60 (2013.01);
Abstract
A method for the production of sacks from tubular pieces which include plastic material includes at least at one end area, laying a bottom rectangle around a fold line to form triangular pockets, with the bottom rectangle including flaps, folding back parts of the flaps of the bottom rectangle, and applying and connecting a bottom cover sheet at least to areas of the flaps of the bottom rectangle and/or to areas of the triangular pockets. The bottom rectangle includes at least in part an air-permeable material.