| Patents for B31B 19 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents (4,853) |
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| 04/02/1985 | US4508529 Apparatus for folding paper sacks to Z shape |
| 03/26/1985 | US4507038 Bag-collecting device |
| 03/20/1985 | EP0134711A2 Twin wicketing bag machine |
| 03/19/1985 | CA1184109A1 Containers and machine for making same |
| 03/12/1985 | US4504260 Method and apparatus for scoring and folding envelopes |
| 02/20/1985 | EP0133303A2 Machine for parting and/or welding webs of thermoplastic synthetic foil |
| 02/20/1985 | EP0133286A1 Film processing machine |
| 02/19/1985 | CA1182847A1 Apparatus for stacking flat articles, such as tube sections, bags or sacks |
| 02/12/1985 | US4498939 Method and apparatus for making zipper bags |
| 02/12/1985 | US4498894 Separation apparatus for separating perforated paper tube sections |
| 02/12/1985 | US4498591 Openable flexible packet |
| 01/29/1985 | US4495748 Containers and machine for making them |
| 01/15/1985 | US4493683 Method of manufacturing bag-like packaging blanks provided with closure ribbons |
| 01/09/1985 | EP0026772B1 Apparatus for attaching a fitment to a pouch |
| 01/08/1985 | US4493110 Bag construction |
| 01/01/1985 | US4491490 Control device and method for gluing together continuous form sets |
| 12/11/1984 | CA1179300A1 Pouch with closure seal strip and method for making same |
| 11/27/1984 | US4484904 Manufacturing plastic bags |
| 11/21/1984 | EP0125863A1 Process for manufacturing sacks, bags, and the like |
| 11/07/1984 | EP0064057A4 Process and apparatus for manufacturing plastic containers. |
| 11/06/1984 | CA1177383A1 Process for cutting and perforating plastic film |
| 09/12/1984 | EP0118124A2 Method, film structure and mechanism for making flexible plastic bags |
| 09/11/1984 | CA1174155A1 Apparatus for applying transverse weld or weld- severing seams to a web of thermoplastic or hot sealable material |
| 08/16/1984 | WO1984003058A1 Device for spreading jointing adhesive on paper surface |
| 08/08/1984 | EP0114805A1 Bag, bag making apparatus and method of use |
| 08/07/1984 | US4464158 Method of making tamperproof bag closure |
| 08/01/1984 | EP0114383A2 Adhesive closure bags and method for producing same |
| 07/31/1984 | US4462857 Apparatus for treating and severing sections from intermittently fed webs |
| 07/17/1984 | US4460431 Apparatus for forming transverse seam welds or separated transverse seam welds in tubular or semitubular plastic film webs |
| 07/17/1984 | CA1171103A1 Apparatus for forming and stacking sections severed from a web of tubular film |
| 07/10/1984 | US4459172 Apparatus for stacking flat articles |
| 07/10/1984 | CA1170488A1 Handle bag making apparatus |
| 07/03/1984 | CA1170164A1 Fine tooth perforation of webs |
| 06/12/1984 | US4453709 System for serially conveying discrete flexible articles |
| 06/12/1984 | US4453370 Square ended bag |
| 05/29/1984 | US4451308 Method and device for making seals in tubular web provided with side gussets |
| 05/29/1984 | US4451249 Manufacture of thermoplastic bags |
| 05/23/1984 | EP0108798A1 Method and apparatus for continuous formation of reclosable article wrappers |
| 05/22/1984 | US4449962 Cutting/sealing device for plastic bag making machines |
| 05/02/1984 | EP0107474A2 Method and apparatus for producing bag-shaped packages |
| 05/01/1984 | US4445960 Polyvinyl chloride web and paper and/or polyester belt |
| 04/17/1984 | US4443211 Envelope assembly apparatus |
| 04/03/1984 | US4440386 Apparatus for forming stacks ready to be packaged from flat workpieces |
| 03/21/1984 | EP0103244A1 Method and apparatus for producing a hose-shaped initial product for reclosable film bags |
| 03/13/1984 | US4436567 Microbiocidal adhesive |
| 03/13/1984 | US4435944 Apparatus for orderly transport and storage of flat objects |
| 03/13/1984 | CA1163411A1 Pouch making machine |
| 03/07/1984 | EP0102301A2 Machine and working cycle for making plastic bags with a zip fastener and device for positioning them |
| 03/06/1984 | US4434948 Apparatus for producing overlapping band rolls from superposed overlapping flat workpieces |
| 02/28/1984 | US4433599 Apparatus for forming and stacking sections severed from a web of tubular film |
| 02/22/1984 | EP0100789A1 Apparatus for applying carrying handles to plastic bags |
| 02/07/1984 | US4430070 Method of and apparatus for uninterruptedly assembling components for making bags |
| 02/07/1984 | US4429603 Rotary envelope cutting method |
| 02/07/1984 | CA1161679A1 Method and apparatus for producing plastics bags |
| 02/02/1984 | WO1984000322A1 Bag, bag making apparatus and method of use |
| 01/31/1984 | US4428788 Film-tape-closure device slot cast integrated interlocking structure and extrusion method |
| 01/18/1984 | EP0098276A1 Method and device for manufacturing an automatic closure valve bag. |
| 01/10/1984 | CA1160090A1 Method and apparatus for sealing a lamina onto a plastic bag |
| 01/04/1984 | EP0097420A2 Valve bag, method for its manufacture, and applicator for application of the valve bags on filling apparatuses |
| 12/27/1983 | CA1159296A1 Process and apparatus for manufacturing plastic containers |
| 12/21/1983 | EP0096335A2 Drive system for glueing continuous business forms |
| 12/21/1983 | EP0096223A1 Apparatus for separating perforated tubular webs of paper |
| 12/20/1983 | CA1158906A1 Method and apparatus for automatically controlling travel of two plastics film strips as a bag material or the like |
| 12/07/1983 | EP0095817A1 Method of and device for making perforations in a tubular web of plastics foil |
| 12/06/1983 | US4419174 Apparatus for manufacturing ostomy pouches |
| 12/06/1983 | US4419167 Heat sealing apparatus and method |
| 12/06/1983 | US4419159 Manufacture of plastic bags with interlocking profile extrusions |
| 12/06/1983 | US4419158 Polyethylene foams |
| 11/29/1983 | CA1157825A1 Web comprising a plurality of plastics bags, having two block bottoms |
| 11/24/1983 | WO1983004011A1 Method and apparatus for continuous formation of reclosable article wrappers |
| 11/22/1983 | US4416651 Envelope gummer cylinder clutch and brake |
| 11/16/1983 | EP0094151A1 Apparatus for and method of serially conveying discrete flexible articles |
| 11/15/1983 | US4415386 Method and apparatus for assembling and attaching zipper closure strips to sacks |
| 11/09/1983 | EP0093390A1 Device for folding paper bags into a Z shape |
| 11/08/1983 | US4413984 Method and apparatus for making window envelopes |
| 11/02/1983 | EP0092865A1 Method and device for making seals in tubular web provided with side gussets |
| 10/26/1983 | EP0092259A1 Device for folding paper bags in a Z shape |
| 10/11/1983 | CA1155096A1 Method for welding the inner layers of multi-layer paper sacks |
| 09/28/1983 | EP0089680A2 Reclosable container having anti-slip flanges facilitating opening and handling |
| 09/28/1983 | EP0089679A2 Process and apparatus for producing parts reclosable particularly for container stock |
| 09/13/1983 | US4403718 Method and apparatus for automatically controlling travel of two plastics film strips as a bag material or the like |
| 09/06/1983 | US4402453 Pouch with closure seal strip and method for making same |
| 08/30/1983 | US4401427 Thermoplastic bags and method of making |
| 08/16/1983 | US4398990 Apparatus for sealing a lamina onto a plastic bag |
| 08/16/1983 | US4398903 Method of and apparatus for making handle bags |
| 08/09/1983 | US4397262 Apparatus for applying and drying sealing material to the seal flap of envelopes |
| 07/26/1983 | US4395252 Apparatus for making bags of thin synthetic-resin film |
| 07/26/1983 | CA1150692A1 Bag, forming, filling and closing machine |
| 07/13/1983 | EP0083505A1 Collapsible receptacle with prefabricated lift loops and method of making same |
| 07/13/1983 | EP0083498A2 Manufacturing plastic bags |
| 07/12/1983 | US4392897 Manufacturing process for channel seal |
| 07/07/1983 | WO1983002252A1 Method and device for manufacturing an automatic closure valve bag |
| 07/07/1983 | WO1983002226A1 Pouch-like bags for containing liquids |
| 07/06/1983 | EP0082858A1 Heat sealing apparatus |
| 06/22/1983 | EP0081734A1 Equipment for applying transverse welds or transverse separation welds to tubular or semi-tubular plastics sheets |
| 06/14/1983 | US4388135 Method of manufacturing ostomy pouches |
| 06/14/1983 | US4388071 Gum applying apparatus |
| 06/07/1983 | US4386924 Handle bag making apparatus |
| 05/24/1983 | US4384914 Arrangement for welding bags |
| 05/04/1983 | EP0077843A1 Handle bag making apparatus |