B31B 35 - Machinery characterised by making envelopes or bags with structural provision at the base for thickness of contents, from sheets or blanks, e.g. from flattened tubes, the longitudinal axes of the envelopes or bags being perpendicular to the direction in which the sheets or blanks are fed

Patents for B31B 35 - Machinery characterised by making envelopes or bags with structural provision at the base for thickness of contents, from sheets or blanks, e.g. from flattened tubes, the longitudinal axes of the envelopes or bags being perpendicular to the direction in which the sheets or blanks are fed (29)
02/2013
02/14/2013	DE102006041275B4 Vorrichtung und Verfahren zur Herstellung von Säcken aus beschichtetem Kunststoffgewebe Device and method for the production of bags made of coated woven plastics
01/2013
01/17/2013	DE102008017442B4 Vorrichtung und Verfahren zur Herstellung von Säcken, welche Gewebe aus gereckten Kunststoffbändchen umfassen Apparatus and method for producing bags which comprise fabrics made of stretched plastic strips
07/2010
07/01/2010	US20100167892 Collapsible Bag for Dispensing Liquids, Method of Manufacturing, and Method of Use Thereof
10/2009
10/15/2009	DE102008017446A1 Vorrichtung und Verfahren zur Herstellung von Säcken Apparatus and method for producing bags
10/15/2009	DE102008017445A1 Vorrichtung und Verfahren zur Herstellung von Säcken Apparatus and method for producing bags
10/08/2009	DE102008017442A1 Fabric bag manufacturing device, has opening mechanism including material layer separating and folding unit for separating and folding material layers, which are foldable away from each other, so that bottom lies in plane of tube pieces
01/2009
01/07/2009	CN201176009Y Bottom closing mechanism for paper bag forming machine
03/2008
03/20/2008	DE102006041275A1 Vorrichtung und Verfahren zur Herstellung von Säcken aus beschichtetem Kunststoffgewebe Device and method for the production of bags made of coated woven plastics
06/2007
06/26/2007	CA2299918C Method for producing packaging means made of plastic foil or similar heat-sealable material
07/2005
07/21/2005	DE10340103B4 Verfahren zur Herstellung von Behältern aus flexiblem Material A process for the manufacture of containers of flexible material
03/2005
03/31/2005	DE10340103A1 Verfahren zur Herstellung von Behältern aus flexiblem Material A process for the manufacture of containers of flexible material
03/02/2005	EP1510332A1 Method of producing containers from a flexible material
12/2001
12/11/2001	US6328683 Device for pulling up the ends of continuously transverse-conveyed flat tubular segments during the production of sacks or bags
09/2001
09/26/2001	CN1071627C Device for drawing-open continuous transverse-conveying flexible tube section at bottom of formed bag in bag production
09/06/2001	DE19549618C2 Saugersteuerung II Sucker control II
10/1998
10/27/1998	US5827165 Device for pulling open continuously cross-conveyed tube sections for the purpose of forming bottoms in the manufacture of sacks
07/1997
07/23/1997	CN1154907A Device for drawing-open continuous transverse-conveying flexible tube section at bottom of formed bag in bag production
05/1997
05/02/1997	EP0770476A2 Apparatus for spreading open tubular blanks for making bottoms in bags
10/1996
10/29/1996	US5569145 Method and apparatus for manufacturing a sack bottom
02/1995
02/05/1995	CA2129095A1 Method and apparatus for manufacturing a sack bottom
05/1992
05/26/1992	CA1301518C Apparatus for folding into an open state sleeves which are lying flat
03/1992
03/18/1992	CN1015880B Apparatus for folding into open state sleeves which are lying flat
02/1991
02/19/1991	US4994011 Apparatus for folding into an open state sleeves which are lying flat
10/1989
10/25/1989	CN1036529A Apparatus for folding into open state sleeves which are lying flat
08/1989
08/23/1989	EP0328876A2 Device for unfolding tubes lying flat
02/1989
02/21/1989	CA1250172A1 Method for preparing flat-bottom thermoplastic sack
04/1987
04/07/1987	US4655737 Method for preparing flat-bottom thermoplastic sack
11/1986
11/05/1986	CN86102972A Method of forming flat-bottom thermoplastic sack
10/1986
10/29/1986	EP0199508A2 Method for preparing flat-bottom thermoplastic sack