| 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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| 04/20/1983 | EP0076929A1 Method of and apparatus for manufacturing a foam tube having a fastener |
| 04/05/1983 | CA1144197A1 Method for piling or stacking sacks or bags |
| 03/29/1983 | US4378268 Apparatus for stacking and blocking bags |
| 03/29/1983 | CA1143758A1 Means for stacking bags |
| 02/22/1983 | CA1141717A1 Paperbag having articulated handle |
| 02/08/1983 | US4372793 Method of joining flexible fastener strips to flexible web |
| 02/08/1983 | CA1140953A1 Feeder mechanism |
| 02/01/1983 | US4371413 Apparatus for applying transverse weld or weld-severing seams to a web of thermoplastic or hot-sealable material |
| 02/01/1983 | US4371365 Apparatus for fitting and stacking bags onto pins |
| 01/20/1983 | WO1983000116A1 Heat sealing apparatus |
| 01/19/1983 | EP0069758A1 Method of manufacturing bag-like packaging blanks provided with closure ribbons |
| 01/18/1983 | CA1139651A1 Method and apparatus for orderly transport and storage of flat objects and a plastic bag suitable therefor |
| 01/12/1983 | EP0069299A1 Pouch with closure seal strip and method for making same |
| 12/15/1982 | EP0066780A1 Method of bonding synthetic resin fastener having fusion heat to flat film |
| 12/07/1982 | US4362526 Method of making plastic handle bags from continuous web |
| 11/24/1982 | EP0065504A2 Cutting device |
| 11/10/1982 | EP0064321A1 A web of a plurality of interconnected bags, a bag obtained from this web and a method of manufacturing said web and apparatus for executing said method |
| 11/10/1982 | EP0064057A1 Process and apparatus for manufacturing plastic containers. |
| 11/03/1982 | EP0063801A1 Device for piling flat articles |
| 11/02/1982 | US4357126 Infeed counting conveyor |
| 10/26/1982 | US4355494 Reclosable bags, apparatus and method |
| 10/19/1982 | US4354541 Profiled plastics bag closure strip and adhesive bonding method |
| 10/19/1982 | US4354335 Method for orderly transport and storage of flat objects and a plastic bag suitable therefor |
| 10/13/1982 | EP0062326A2 Procedure for manufacturing paper bags |
| 10/12/1982 | US4353770 Folding back outer layers during welding |
| 10/05/1982 | US4352669 Process and apparatus for manufacturing plastic containers |
| 09/22/1982 | EP0060351A1 Device for stacking bags |
| 09/08/1982 | EP0059484A1 Device for forming piles of flat material which is ready for packing |
| 08/31/1982 | CA1130832A1 Bag folding machine |
| 08/31/1982 | CA1130831A1 Bag folding apparatus |
| 08/05/1982 | WO1982002514A1 Method of manufacturing bag-like packaging blanks provided with closure ribbons |
| 08/03/1982 | US4342564 Apparatus for the stacking and connection of synthetic-resin foil bags |
| 08/03/1982 | CA1128845A1 Steam seal of bag ply |
| 07/27/1982 | US4341575 Means for joining flexible fastener strips to film |
| 07/27/1982 | US4341522 Method and apparatus for making pouches with dispensing fittings |
| 07/14/1982 | EP0055783A1 Gusset forming device for cylindrical fabric in circular loom |
| 07/13/1982 | US4338765 Method for sealing a container |
| 07/06/1982 | US4338085 Apparatus for manufacturing envelopes |
| 07/06/1982 | US4338084 Method for piling or stacking sacks or bags |
| 06/30/1982 | EP0054973A1 Device for producing rolls of flexible sheets wound in staggered overlapping formation |
| 06/29/1982 | CA1126641A1 Apparatus for attaching a fitment to a pouch |
| 06/08/1982 | US4333790 Rotary bag sealing and perforating machine |
| 05/27/1982 | WO1982001682A1 Process and apparatus for manufacturing plastic containers |
| 05/26/1982 | EP0052151A1 Ply-bottom bag and apparatus for making it |
| 05/05/1982 | EP0050860A1 Device for forming and stapling segments separated from a tubular foil web |
| 04/27/1982 | US4326664 Thermoplastic bags having stress relief feature at handle connection |
| 04/21/1982 | EP0049978A1 Containers and method and machine for making them |
| 04/15/1982 | WO1982001158A1 A method for manufacturing of articles from one or several film webs and an apparatus for the accomplishment of the method |
| 03/17/1982 | EP0047539A1 Flexible-fabric sack container for loose material and process for the manufacture thereof |
| 03/16/1982 | US4319952 Reciprocally moving hot-wire for bag making machine |
| 02/23/1982 | US4316723 Method and apparatus for severing tube sections from tubular webs and transporting same |
| 02/10/1982 | EP0045587A1 A method of manufacturing ostomy pouches |
| 02/04/1982 | WO1982000305A1 Gusset forming device for cylindrical fabric in circular loom |
| 01/26/1982 | CA1116851A1 Surface treatment of paper webs |
| 01/12/1982 | CA1116136A1 Reclosable shipping sack and method |
| 12/30/1981 | EP0042586A1 A process for cutting and perforating plastic film |
| 12/29/1981 | US4308021 Apparatus for depositing sections severed from a web of film |
| 12/22/1981 | US4306924 Method and apparatus for producing a plastic container having a reclosable fastener |
| 12/16/1981 | EP0041924A1 Method of manufacturing a deformable container and deformable container |
| 12/08/1981 | US4304615 Method of and means for producing plastic bags having separable plastic fasteners |
| 12/01/1981 | CA1113516A1 Continuous sheet stacker with temporary stack holder |
| 11/18/1981 | EP0040170A2 Method and apparatus for fixing a tag to a plastic bag |
| 11/17/1981 | US4300892 Plastics bags production |
| 10/21/1981 | EP0037841A1 Bag folding machine and method of folding flexible sheet material |
| 10/13/1981 | US4294574 Method of making seal for flexible container |
| 10/06/1981 | US4292919 Non-metallic paste sectors and methods of fabricating and utilizing same |
| 09/29/1981 | US4292033 Method of providing net bags with wicketing flaps |
| 09/23/1981 | EP0036400A2 Apparatus for continuous forming and filling of sacks |
| 09/08/1981 | US4288279 Apparatus for producing bags of plastics material |
| 08/25/1981 | US4285685 Apparatus for forming loops in tube sections for making sacks for the purpose of compensating for different lengths of sections |
| 08/25/1981 | US4285509 Feeder mechanism |
| 08/25/1981 | US4285376 Reclosable plastic bag construction made from a one piece extrusion |
| 08/04/1981 | US4282055 Apparatus for applying adhesive rider strips to the flattened end edges of tube sections or sacks |
| 07/21/1981 | US4279686 Apparatus for applying web sections to a flat-lying workpiece |
| 07/21/1981 | US4279677 Method of means for joining plastic fastener strip to film |
| 07/16/1981 | EP0026772A4 Apparatus for attaching a fitment to a pouch. |
| 07/14/1981 | US4278488 Tape delivery system |
| 07/14/1981 | US4278198 Flexible collapsible container with a stiffening member |
| 07/07/1981 | US4277241 Apparatus for forming bags of thermoplastic material |
| 07/01/1981 | EP0031129A2 Method of welding the internal layers of multi-layer paper sacks |
| 06/30/1981 | US4275977 Apparatus and method for individual bag working and stacking |
| 06/23/1981 | US4274896 Method for making sacks which are open at one end and comprise an outer sack of woven plastics tape fabric |
| 06/02/1981 | US4270909 Device and method for folding self-sealing envelope flaps |
| 06/02/1981 | US4270908 Apparatus for the stacking and connection of synthetic-resin foil or sheet bags |
| 05/26/1981 | US4269557 Automatic bag collating and stacking apparatus |
| 05/19/1981 | US4268346 Apparatus for making tank top bags from a web of tubular plastics film provided with side folds |
| 05/19/1981 | US4268260 Feeding mechanism of bag manufacturing machine |
| 05/19/1981 | US4267768 Process for fabricating a reclosable bag |
| 05/12/1981 | CA1100802A1 Manufacture of record sleeves |
| 04/21/1981 | US4262583 Method for fixing a handle to a packing |
| 04/21/1981 | US4262581 Method and apparatus for making printed gusset bags |
| 04/15/1981 | EP0026772A1 Apparatus for attaching a fitment to a pouch. |
| 04/14/1981 | US4261779 Indexing roll drive system |
| 04/07/1981 | US4260147 Utilization of air jets for discharge conveyor on wicketing systems |
| 03/31/1981 | US4259133 Method and apparatus for making profile sheets |
| 03/25/1981 | EP0025711A1 Bag forming apparatus |
| 03/25/1981 | EP0025656A1 Profiled plastics bag closure strip and adhesive bonding method |
| 03/17/1981 | US4256256 Multiple compartment pouch and method of making same |
| 03/17/1981 | US4256023 Bag making apparatus |
| 03/10/1981 | US4255225 Combined heat sealer and cut-off device |