| 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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| 11/19/1987 | EP0245369A1 Reclosable flexible container. |
| 11/19/1987 | EP0135520B1 Device for fabricating multi-layer sacks |
| 11/11/1987 | EP0244600A2 Device for stacking flat objects, especially double bags made of a plastics film |
| 11/10/1987 | US4706298 Fused plastic bag closure and apparatus for making same |
| 11/03/1987 | US4704100 Bag making apparatus and method |
| 10/27/1987 | US4703518 Attachment of plastic zipper to the outside of incompatible bag wall web |
| 10/27/1987 | US4702731 Thermoplastic bag machine |
| 10/22/1987 | DE3613297A1 Process for producing interconnected stacks of plastic carrier bags |
| 10/22/1987 | DE3613243A1 Process and device for producing bags |
| 10/22/1987 | DE3613117A1 Folding device |
| 10/22/1987 | DE3612196A1 Vorrichtung zum herstellen von beutelpackungen mit entnahmestutzen Apparatus for the manufacture of packaging bags with tamper clip |
| 10/20/1987 | US4701361 Tubular film with transverse closure strips |
| 10/14/1987 | EP0240695A2 Device for making bag packages having delivering nipples |
| 10/13/1987 | US4699607 Method and apparatus for producing bags |
| 10/13/1987 | CA1228015A1 Coupon cutting machine |
| 10/13/1987 | CA1227962A1 Apparatus and method for securing top ends of sack gussets |
| 10/08/1987 | DE3609362A1 Device for stacking double-bag sections and for dividing the double-bag stack into two single-bag stacks |
| 10/07/1987 | EP0239857A2 Device for stacking flat objects, especially double bags made of a plastics film |
| 10/06/1987 | US4698274 Quadruple profile plastic tubing for making bags |
| 10/06/1987 | US4698118 Apparatus for forming plastic fastener and plastic accessory strips and uniting the same with a film |
| 09/22/1987 | US4695346 Print registers; fine and coarse adjustment |
| 09/22/1987 | US4694959 Maintaining single link chain bags against skewing |
| 09/17/1987 | DE3608345A1 Process and system for producing plastic bag stacks from a doubled plastic film web |
| 09/15/1987 | US4693701 Twin wicketing bag machine |
| 09/09/1987 | EP0235965A2 Method and apparatus for producing drawstring bags |
| 09/09/1987 | EP0098276B1 Method and device for manufacturing an automatic closure valve bag |
| 09/08/1987 | US4692135 Sealer for side gusseted bags |
| 09/08/1987 | US4692134 Machine for making unitized stacks of bags |
| 09/01/1987 | US4690280 Detachable plastic bag pad and process for making same |
| 09/01/1987 | CA1226311A1 Stacking thermoplastic sheets |
| 08/25/1987 | CA1225856A1 Twin wicketing bag machine |
| 08/18/1987 | CA1225538A1 Apparatus for the manufacture of plastic bags |
| 08/11/1987 | CA1225412A1 Apparatus for the manipulation of plastic bags |
| 08/04/1987 | US4684359 Movable clamp orienter for draw tape |
| 07/30/1987 | WO1987004391A1 An apparatus for attaching a fitment to a web of film |
| 07/21/1987 | US4682366 Attachment of plastic zipper to incompatible bag wall web |
| 07/14/1987 | US4680024 Apparatus for producing bags from a tubular sheet of thermally weldable film material |
| 07/14/1987 | US4679474 Cutting thermoplastic webs |
| 07/14/1987 | CA1224190A1 Method of forming a bag chain |
| 07/08/1987 | EP0227763A1 Device for transverse sealing and cutting of a folded-sheet web |
| 06/17/1987 | CN86107013A Apparatus for the piling up of bags made of thermoplastic film in order to form a pile of them during production |
| 06/16/1987 | US4673383 Fusible rib bonding of fasteners to substrate |
| 06/09/1987 | US4671152 Apparatus for cutting out windows in envelopes |
| 06/02/1987 | US4670083 Binder for bag pads |
| 05/26/1987 | US4668158 Sheet stacking and transferring device |
| 05/26/1987 | US4668148 Sheet stacking and transferring device |
| 05/26/1987 | US4668147 Sheet stacking and transferring device |
| 05/21/1987 | WO1987002968A1 Reclosable flexible container |
| 05/21/1987 | WO1987002943A1 Sealing machine for glue-coated material in sheets |
| 05/20/1987 | EP0221893A1 Fitment attachement methods in horizontal form/fill/seal machines |
| 05/19/1987 | US4666536 Method of and means for making reclosable bag material, and material produced thereby |
| 05/19/1987 | US4666423 Method of aligning fastener elements on a folded web and device for implementing the method |
| 05/12/1987 | US4664649 Method and apparatus for producing drawstring bags |
| 05/05/1987 | US4662864 Apparatus for stacking and padding plastic bags |
| 05/05/1987 | CA1221340A1 Bag with tab and method of and apparatus for manufacturing same |
| 04/15/1987 | EP0217982A1 A thermoplastic bag, method and system for its manufacture |
| 04/14/1987 | US4658433 Rib and groove closure bag with bead sealed sides |
| 04/14/1987 | US4657528 Apparatus for stacking and conveying flat articles, preferably bags made of plastic film |
| 04/08/1987 | EP0217776A1 Portable container, method for its production and device for accomplishing the method |
| 04/08/1987 | EP0216989A2 Device for pulling a pile of thermoplastic bags from under a pile being formed |
| 04/08/1987 | EP0216800A1 Apparatus for producing flexible containers. |
| 04/07/1987 | US4655862 Method of and means for making reclosable bags and method therefor |
| 04/07/1987 | US4655737 Method for preparing flat-bottom thermoplastic sack |
| 04/02/1987 | DE3631940A1 Device for the formation of stacks of plastic bags or similar workpieces as they are being produced |
| 03/25/1987 | EP0215761A2 Side sealed thermoplastic bag |
| 03/25/1987 | EP0215394A1 Apparatus and method for producing bags |
| 03/25/1987 | EP0215269A1 Device for the production of bags |
| 03/25/1987 | EP0215163A1 Methods for preparing flat-bottom thermoplastic sack and systems therefor |
| 03/25/1987 | EP0215083A1 Method for fabricating bags made of flexible material, particularly plastic, device for implementing such method and bags obtained thereby |
| 03/24/1987 | US4652253 Method for preparing flat-bottom thermoplastic sack |
| 03/17/1987 | US4650451 Intermittently translating draw tape stretched between nip rolls |
| 03/12/1987 | DE3530648A1 Process for the simultaneous manufacture of in each case two bags from twin-film web sections of a laid-flat tubular film web and equipment for carrying out the process |
| 03/10/1987 | US4649259 Device for welding foils having different thickness along a weld line |
| 03/10/1987 | CA1218966A1 Adhesive closure bags and method for producing same |
| 03/05/1987 | DE3543725C1 Process for the continuous production of cone-shaped bags and welding and needling station for carrying out such a process |
| 03/05/1987 | DE3529746A1 Process and equipment for the manufacture of bags |
| 02/24/1987 | US4645339 Apparatus for testing the base-folding of bases formed on tube sections |
| 02/10/1987 | US4642013 Apparatus for stacking flat articles |
| 01/28/1987 | EP0191770A4 Flexible container with improved fluid flow guide. |
| 01/27/1987 | US4638702 Web cutting method and apparatus |
| 01/14/1987 | EP0208240A1 Method and apparatus for extruding a fastening profile onto a travelling film web |
| 01/13/1987 | US4636191 Plastic bag handle aperture forming apparatus |
| 01/13/1987 | US4636190 Apparatus for manufacturing a web of plastic bags |
| 01/07/1987 | CN86103932A Stacking and transportation device of sheet |
| 01/06/1987 | US4635294 Material for making three reclosable bag sections from extruded plastic material |
| 01/02/1987 | DE3522063A1 Vorrichtung zum querschweissen und -schneiden einer faltfolienbahn Device for transverse welding and cutting a faltfolienbahn |
| 12/31/1986 | WO1986007564A1 Device for transverse sealing and cutting of a folded-sheet web |
| 12/23/1986 | US4631047 Apparatus for cutting hand holes in bags |
| 12/16/1986 | US4629524 Continuous lenght or preformed, flat bag wall web of multibag and fastener profile strips |
| 11/26/1986 | EP0064057B1 Process and apparatus for manufacturing plastic containers |
| 11/25/1986 | US4624654 Method and apparatus for manufacturing draw tape bags |
| 11/18/1986 | US4623323 Rotating disk intermittent orientor for draw tape |
| 11/12/1986 | EP0200921A1 Extruded plastic material for making three recloseable bag sections |
| 11/06/1986 | WO1986006344A1 Fitment attachement methods in horizontal form/fill/seal machines |
| 11/05/1986 | CN86102972A Method of forming flat-bottom thermoplastic sack |
| 10/29/1986 | EP0199508A2 Method for preparing flat-bottom thermoplastic sack |
| 10/22/1986 | EP0198552A1 Equipment for producing conical products |
| 10/21/1986 | US4618993 Valve bag |
| 10/21/1986 | US4618383 Method and apparatus for the manufacture of plastic bags having interlocking profile extrusions |
| 10/21/1986 | CA1212808A1 Process and apparatus for reclosable container stock |