| Patents for B31B 23 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents, from webs, e.g. from flattened tubular webs (1,472) |
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| 09/28/1994 | CN1092730A Pouch having easy opening and reclosing characteristics and method and apparatus for production thereof |
| 09/21/1994 | EP0615510A1 Specialized product pouches and the method and apparatus for forming individual pouches from a continuous web and packaging a product. |
| 08/30/1994 | US5341930 Package having separable overlay |
| 07/27/1994 | EP0608123A1 Pouch having easy opening and reclosing characteristics and method and apparatus for production thereof |
| 07/20/1994 | CA2112850A1 Pouch having easy opening and reclosing characteristics and method and apparatus for production thereof |
| 06/14/1994 | CA2005876C Method and apparatus for the sequential handling of flexible products |
| 05/17/1994 | US5312317 Apparatus for detaching pieces of tube provided with transverse weld seams from a web and for stacking the same |
| 05/11/1994 | WO1994009979A1 Method for manufacturing a film, a bag made from a film, such a film, and use of the film |
| 05/11/1994 | CA2148284A1 Method for manufacturing a film, a bag made from a film, such a film |
| 03/16/1994 | CN2158780Y Automatic making machine for telescopic file bag |
| 03/03/1994 | CA2105335A1 Set of envelopes consisting of a web the front and back surfaces of which bear areas of adhesive |
| 02/23/1994 | CN2157011Y Loose-leaf information bag making apparatus |
| 02/22/1994 | US5288284 Method for making bags and an apparatus for carrying out this method |
| 02/15/1994 | US5286248 Flexible pouch with folded spout |
| 02/08/1994 | US5284002 Apparatus and method for making a reclosable storage bag |
| 02/01/1994 | US5282778 Method for making bags of synthetic material |
| 02/01/1994 | US5282351 Method for making, filling and sealing sacks |
| 12/08/1993 | EP0572897A1 Plastic bag making machine from a thermoplastic web |
| 11/10/1993 | EP0569336A1 Apparatus for making flat packaging bags from a flexible film |
| 11/07/1993 | CA2095396A1 Apparatus for making flat packaging bags from a flexible sheet of synthetic material |
| 10/28/1993 | CA2118228A1 Method of determining optimum arterial applanation |
| 10/19/1993 | US5253754 Transporting |
| 09/29/1993 | EP0562443A1 Method and device for producing printed matter |
| 09/14/1993 | US5244450 Process of making blocks of bags |
| 09/14/1993 | US5244449 Apparatus for feeding a continuous plastic film |
| 09/07/1993 | US5242365 Process for manufacturing package having separable overlay |
| 09/02/1993 | WO1993016931A1 Apparatus and method for making a reclosable bag |
| 09/02/1993 | CA2130820A1 Apparatus and method for making a reclosable bag |
| 08/12/1993 | DE4303341A1 Inner paper bag for inserting into collecting containers - has several inwardly folded gussets on each opposite foldable side |
| 08/11/1993 | EP0554524A1 Process for producing bags and apparatus for carrying out this process |
| 07/20/1993 | US5228268 Flexible bag with article encapsulated on one side thereof |
| 07/13/1993 | US5226735 Perforated plastic bag for packaging fruits or vegetables |
| 06/24/1993 | WO1993012008A1 Specialized product pouches and the method and apparatus for forming individual pouches from a continuous web and packaging a product |
| 06/24/1993 | WO1993011948A1 Apparatus and method for maintaining the confidentiality of printed information |
| 06/24/1993 | CA2126075A1 Apparatus and method for maintaining the confidentiality of printed information |
| 06/24/1993 | CA2123005A1 Specialized product pouches and the method and apparatus for forming individual pouches from a continuous web and packaging a product |
| 06/17/1993 | CA2085530A1 Method for making bags and an apparatus for carrying out this method |
| 06/10/1993 | WO1993008982A3 Roll stock for making resealable bags and resealable roll-formed bag |
| 06/09/1993 | EP0545057A1 Device for applying transverse welds and transverse cuts respectively transverse perforation lines to plastic sheets |
| 06/03/1993 | CA2084372A1 Apparatus for producing transverse weld seams, transverse severing cuts and, respectively, transverse lines of perforations in tubular webs |
| 06/02/1993 | EP0544078A1 Device for cutting off tubular plastic sheets containing transverse welds from a continuous sheet, and stacking them |
| 06/01/1993 | US5215514 Method and arrangement in a bag-making machine for forming weld lines in a web fed therethrough |
| 05/13/1993 | WO1993008982A2 Roll stock for making resealable bags and resealable roll-formed bag |
| 05/12/1993 | EP0541028A1 Refuse bags |
| 05/05/1993 | EP0539800A2 Method and apparatus for continuously forming bags |
| 04/20/1993 | US5203556 Method and apparatus for the sequential handling and delivery of flexible products |
| 04/14/1993 | EP0537127A1 Method and arrangement in a bag-making machine for forming weld lines in a web fed therethrough |
| 03/01/1993 | CA2050145A1 Perforated plastic bag for packaging fruits or vegetables |
| 02/10/1993 | EP0527113A1 System and method for manufacturing envelopes |
| 02/09/1993 | US5184724 Flexible package for small items |
| 01/19/1993 | US5179819 Methods of preparation of packaging bags for bottles, methods of preparation of packaging bottles and apparatus utilized therefor |
| 12/29/1992 | CA1312049C Collapsible bag and method |
| 12/25/1992 | CA2072209A1 Process of making blocks of bags |
| 12/16/1992 | CN1067022A Plastic film feeding apparatus |
| 12/13/1992 | CA2070912A1 System and method for manufacturing envelopes |
| 12/09/1992 | EP0516979A1 Method for making, filling and closing bags |
| 12/08/1992 | CA2070718A1 Method for producing, filling and sealing bags |
| 12/02/1992 | EP0516259A1 Apparatus for feeding a continuous plastic film |
| 10/27/1992 | USRE34117 Protective laboratory specimen bag |
| 10/27/1992 | CA1309289C Method for producing packing bags which can be stacked on a wicket |
| 09/29/1992 | US5150560 System and method for manufacturing envelopes |
| 09/24/1992 | DE4122887C1 Prodn. of plastics film bags - with grip strip welded to edges prior to doubling over |
| 08/26/1992 | EP0499966A2 Method for continuous manufacture of wrappers, or pouches and products manufactured by this method |
| 08/21/1992 | CA2061436A1 Method for continuously producing envelopes, bags, and shipping pouches, and the product so produced |
| 08/11/1992 | US5137505 Bag-making apparatus with adjustable fold guides |
| 08/06/1992 | DE4102877A1 Device for forming stack of bags from tube of thermoplastic - uses row of spikes with roughened ends, with roughening achieved by circumferential grooves |
| 07/01/1992 | EP0493332A1 Automatic machine for fashioning, filling and sealing gusseted plastic bags, in particular for packaging inert materials |
| 05/26/1992 | CA1301613C Process and apparatus for cutting and sealing multiple plies of thermoplastic material having thickened sections |
| 05/19/1992 | US5114393 Method and apparatus for manufacturing sacks, and sacks obtained thereby |
| 05/12/1992 | US5112289 Device for transverse cutting and welding of webs |
| 05/05/1992 | US5110005 Waste container liner |
| 04/28/1992 | US5108085 Apparatus and method for the production of flexible products |
| 04/22/1992 | EP0481173A1 Method for producing plastic bags |
| 04/17/1992 | CA2027749A1 Apparatus for the manufacture of hot-seal garment bags |
| 04/15/1992 | CN2101577U Bidirectional compensation mechanism for making bag machine |
| 03/31/1992 | US5100371 Envelope blank forming machine |
| 03/31/1992 | CA1298243C Plastic bag and method and apparatus of manufacture |
| 03/24/1992 | US5098364 Waste container liner and method for manufacturing same |
| 03/04/1992 | CN2097740U Fully-automatic plastics bag-made machine |
| 02/04/1992 | CA1295162C Method and apparatus for continuous production of bags from thermoplastic film |
| 01/22/1992 | EP0467322A2 Method and apparatus for continuously packaging bottles or the like in packaging bags |
| 01/21/1992 | CA2047410A1 Methods of preparation of packaging bags for bottles, methods of preparation of packaging bottles and apparatus utilize therefor |
| 01/07/1992 | US5077957 Web of interconnected bags |
| 11/21/1991 | EP0457304A1 Bag-making apparatus |
| 11/12/1991 | US5064408 Method and apparatus for producing a plurality of continuous bags |
| 11/05/1991 | US5062825 Apparatus and method for the production of flexible products |
| 10/30/1991 | EP0454468A1 Envelope blank forming machine |
| 10/22/1991 | CA1291079C Stack of bags and process and apparatus for manufacturing the same |
| 10/16/1991 | EP0333726B1 Bag-making machine |
| 10/15/1991 | US5057181 Apparatus for applying reinforcing slips provided with a glue coating to a web having transverse perforation lines |
| 09/17/1991 | US5049117 Dual-envelope making machine and method of using |
| 09/03/1991 | US5045041 Method of manufacturing a reusable fabric-covered heat-exchange bag |
| 08/21/1991 | EP0442292A1 Flexible pouch with folded spout |
| 08/14/1991 | CN2082676U Heat-sealing machine for manufacturing bag |
| 08/13/1991 | CA2035628A1 Flexible pouch with folded spout |
| 06/22/1991 | CA2031986A1 Strips of interconnected pre-opened reclosable bags |
| 06/18/1991 | CA1284969C Thermoplastic bag, bag pack and method of making the same |
| 06/04/1991 | US5020922 Bone puncture resistant bag |
| 05/28/1991 | US5019030 Envelope blank forming machine |
| 05/14/1991 | US5014978 Method and apparatus for the sequential handling of flexible products |