| 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) |
|---|
| 09/10/1985 | US4540089 Bag and bag making apparatus |
| 09/04/1985 | EP0074362B1 Bag and bag making apparatus |
| 09/03/1985 | US4538783 Suspension rack for bags and sacks, in particular refuse disposal bags for domestic purposes |
| 08/20/1985 | US4536174 Stack conveyor for bag-making apparatus |
| 07/23/1985 | CA1190780A1 Method and apparatus for making bag-type packages |
| 07/10/1985 | EP0147969A1 Plastic bag handle forming apparatus |
| 07/09/1985 | CA1190079A1 Method and apparatus for folding and cutting articles from a tubular thermoplastic envelope |
| 07/02/1985 | US4526639 Means for intermittently feeding lengths of plastic film, heating means, receiver means, stacker, conveyor means |
| 06/18/1985 | US4523918 Method of forming a bag chain |
| 05/21/1985 | US4518378 Apparatus for the manufacture of plastic bags |
| 05/21/1985 | US4517868 Method of and device for making perforations in a tubular web of plastics foil |
| 05/14/1985 | CA1186979A1 Apparatus for forming transverse seam welds or separated transverse seam welds in tubular or semitubular plastic film webs |
| 04/23/1985 | US4512757 Double-seam bag-making method and apparatus with offset stacking |
| 04/10/1985 | EP0136602A1 Device for manufacturing carrying bags from synthetic material |
| 04/03/1985 | EP0136171A2 Bag bundles and method of and apparatus for manufacture thereof |
| 03/19/1985 | US4505699 Apparatus for making envelopes from a continuous film sheet |
| 02/20/1985 | EP0133287A1 Apparatus for controlling the movements in a film processing machine |
| 02/20/1985 | EP0133286A1 Film processing machine |
| 02/05/1985 | US4497679 Method of forming plastic envelopes |
| 12/27/1984 | EP0129512A2 Device in a packaging machine for making packaging bags |
| 12/25/1984 | US4490207 Transverse severing apparatus for webs |
| 12/11/1984 | US4487599 Method and device for producing interlocked stacks of bags made of hose-like thermoplastic foil |
| 11/21/1984 | EP0125863A1 Process for manufacturing sacks, bags, and the like |
| 11/06/1984 | US4481006 Bag making method and machine |
| 09/25/1984 | US4473431 Apparatus for making plastic material bags and for depositing them in groups |
| 09/04/1984 | US4469542 Method of making a piece of tube from a flat web of flexible material, and apparatus for carrying out the method |
| 08/07/1984 | US4464157 Method of preparing a thermoplastic bag having reinforced handles |
| 07/17/1984 | US4460431 Apparatus for forming transverse seam welds or separated transverse seam welds in tubular or semitubular plastic film webs |
| 07/10/1984 | CA1170488A1 Handle bag making apparatus |
| 06/05/1984 | US4452597 Method and apparatus for forming stacks of sacks |
| 05/29/1984 | US4451249 Manufacture of thermoplastic bags |
| 05/22/1984 | US4449962 Cutting/sealing device for plastic bag making machines |
| 05/15/1984 | US4448010 Method and apparatus for making bag-type packages |
| 05/01/1984 | US4445960 Polyvinyl chloride web and paper and/or polyester belt |
| 05/01/1984 | CA1166659A1 Thermoplastic bag stacking apparatus |
| 04/24/1984 | CA1166200A1 Food bags for high-temperature sterilization and process for their production |
| 03/14/1984 | EP0102616A1 Method and apparatus for forming a tube cutting from a flat web of flexible material |
| 03/13/1984 | US4436576 Apparatus for forming bottom heat seals |
| 02/15/1984 | EP0100609A1 Apparatus and method for forming and stacking plastic bags |
| 02/07/1984 | CA1161679A1 Method and apparatus for producing plastics bags |
| 12/21/1983 | EP0096191A1 Bag for infusion solutions or the like and method of manufacturing |
| 12/13/1983 | US4420147 Web folding and sealing machine |
| 12/13/1983 | CA1158747A1 Apparatus for registration and control of a moving web |
| 12/07/1983 | EP0095817A1 Method of and device for making perforations in a tubular web of plastics foil |
| 11/29/1983 | CA1157825A1 Web comprising a plurality of plastics bags, having two block bottoms |
| 10/05/1983 | EP0090352A2 Method and device for manufacturing and stocking thermoplastic bags |
| 08/23/1983 | CA1152371A1 Side sealing mechanism for a packaging machine |
| 08/03/1983 | EP0084880A2 Device for tranversely cutting webs |
| 08/02/1983 | US4396379 Thermoplastic bag stacking apparatus |
| 07/26/1983 | US4395252 Apparatus for making bags of thin synthetic-resin film |
| 06/22/1983 | EP0081734A1 Equipment for applying transverse welds or transverse separation welds to tubular or semi-tubular plastics sheets |
| 06/07/1983 | US4386924 Handle bag making apparatus |
| 05/31/1983 | US4385722 Packaging of articles |
| 05/04/1983 | EP0077843A1 Handle bag making apparatus |
| 04/19/1983 | US4380446 Side sealing mechanism for a packaging machine |
| 03/29/1983 | CA1143758A1 Means for stacking bags |
| 03/23/1983 | EP0074362A1 Bag and bag making apparatus. |
| 03/03/1983 | WO1983000679A1 A suspension rack for bags and sacks, in particular refuse disposal bags for domestic purposes |
| 02/01/1983 | US4371367 Apparatus for pulling open tube sections to form base squares in the production of cross-bottom sacks |
| 02/01/1983 | US4371365 Apparatus for fitting and stacking bags onto pins |
| 01/11/1983 | US4368051 Method of and apparatus for making handle bags bearing indicia |
| 12/28/1982 | US4365716 Peelable seal |
| 11/30/1982 | US4361235 Containers made of thin pliable synthetic material, and process of manufacturing it |
| 11/25/1982 | WO1982004011A1 Device for the manufacture of and the removal by groups of synthetic material bags |
| 11/23/1982 | US4360355 Adhesive envelope for a shipping label or the like |
| 11/17/1982 | EP0064773A1 Apparatus for making and depositing groups of plastic bags |
| 09/30/1982 | WO1982003208A1 Bag and bag making apparatus |
| 09/08/1982 | EP0059420A1 Method and means for manufacturing stacks of bags |
| 08/03/1982 | US4342564 Apparatus for the stacking and connection of synthetic-resin foil bags |
| 08/03/1982 | CA1128845A1 Steam seal of bag ply |
| 07/28/1982 | EP0056653A1 Dunnage bag with anti-dilatation features and method for making same |
| 07/21/1982 | EP0056102A1 Apparatus for making plastic bags |
| 06/30/1982 | EP0055207A2 Method of making bag blocks, and bag strip produced thereby as an intermediate product |
| 06/29/1982 | CA1126701A1 Packages and method of making them |
| 06/01/1982 | USRE30956 Welding machine for thermoplastic web |
| 06/01/1982 | US4332578 Apparatus for making thermoplastic carrier bags |
| 05/25/1982 | US4331502 Apparatus for making bags from a two-ply web of thermoplastic material |
| 04/28/1982 | EP0050339A1 Thermoplastic bag stacking apparatus |
| 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 |
| 02/23/1982 | US4316566 Apparatus for registration and control for a moving web |
| 02/02/1982 | US4313781 Method and apparatus for cutting and sealing thermoplastic material |
| 01/27/1982 | EP0044677A1 Apparatus for registration and control of a moving web and method of operating such apparatus |
| 01/05/1982 | US4308988 Envelope |
| 11/17/1981 | US4300977 Machine for welding thermoplastic sheets |
| 11/17/1981 | US4300893 Apparatus for applying transverse weld seams to superposed webs of plastics film, preferably in the production of bags from webs of tubular or semi-tubular plastics |
| 11/17/1981 | US4300892 Plastics bags production |
| 11/03/1981 | CA1111748A1 Apparatus for making chains of sacks |
| 09/23/1981 | EP0036400A2 Apparatus for continuous forming and filling of sacks |
| 09/15/1981 | CA1108909A1 Method and device for making envelopes from a continuous web and including the stuffing and sealing of those envelopes |
| 06/23/1981 | US4274896 Method for making sacks which are open at one end and comprise an outer sack of woven plastics tape fabric |
| 06/16/1981 | CA1103215A1 Containers made of thin pliable synthetic material, and process of manufacturing it |
| 05/19/1981 | US4268346 Apparatus for making tank top bags from a web of tubular plastics film provided with side folds |
| 05/19/1981 | US4268343 Machine for working on a web of material by means of a welding tool |
| 05/19/1981 | US4268260 Feeding mechanism of bag manufacturing machine |
| 04/14/1981 | US4261780 Method of bundling bags by heat-adhesion |
| 02/17/1981 | US4250796 Method and apparatus for making bags from tubular or semi-tubular webs |
| 01/13/1981 | US4244772 Apparatus for applying transverse weld seams to superposed webs of plastics film |
| 12/23/1980 | US4240336 Bag making machine |
| 12/10/1980 | EP0020313A1 Envelope and a method for its manufacture |
| 11/25/1980 | US4235659 Apparatus for making and stacking plastics bags |