| 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) |
|---|
| 11/01/1988 | US4781474 Pouch with loop handle attached by oval seal |
| 10/25/1988 | US4779996 Pouch with slotted suspension means |
| 10/25/1988 | US4779897 Apparatus for producing blocks with at least one pocket divider, as well as pocket divider |
| 10/20/1988 | EP0216800A4 Apparatus for producing flexible containers. |
| 10/12/1988 | EP0285904A1 Method and machine for the production of plastic carrying bags in pairs from a plastic web with a side seam |
| 08/30/1988 | US4767391 Apparatus for the manufacture of block-sealed side-gussetted bags |
| 08/25/1988 | WO1988006092A1 Process for the manufacture of packs of plastic bags with side seams, said bags forming a block |
| 08/25/1988 | DE3704662A1 Verfahren zum herstellen von verblockten packen aus beuteln mit seitennaht Method for the manufacture of splinted unpack pouches with side seam |
| 08/18/1988 | DE3703757A1 Plastic bag with side folds and a bottom weld, and method and device for its manufacture |
| 08/16/1988 | US4764160 Cutting apparatus for a machine used for making bags, pouches and the like from thermoplastic material |
| 07/26/1988 | US4759742 Process of making T-shirt bags |
| 05/31/1988 | CA1237394A1 Detachable plastic bag pad and process for making same |
| 05/24/1988 | CA1237009A1 Apparatus for making plastic carrier bags |
| 05/19/1988 | WO1988003474A1 Arrangement in a bag-making machine |
| 05/18/1988 | EP0267706A1 Bag bundles and method of and apparatus for manufacture |
| 05/05/1988 | DE3637374A1 Process and apparatus for producing plastic bags with lateral folds |
| 03/29/1988 | US4734148 Process for making a detachable plastic bag pad |
| 03/29/1988 | US4734088 Apparatus for making bags |
| 03/10/1988 | DE3630158A1 Method and device for producing photograph pouches, and photograph pouch |
| 02/24/1988 | EP0256375A1 Method and apparatus for the production of a stack of bags |
| 02/23/1988 | US4726803 Bottom seal bag making machine |
| 02/10/1988 | CN86201828U Continually conveying spot-sealing bag-making machine |
| 02/04/1988 | DE3622968A1 Process and device for the continuous production of packaging bags |
| 01/14/1988 | DE3249745C2 Device for the continuous production of bag-shaped containers or the like from thermplastic web material |
| 12/02/1987 | EP0247073A1 Plastic bag and method and apparatus of manufacture. |
| 12/01/1987 | US4710157 Former for form, fill and seal packaging machine |
| 12/01/1987 | US4709534 Bag for infusion solutions and the like and method of manufacturing the same |
| 11/19/1987 | EP0245654A2 Method for making so-called shirt bags |
| 11/19/1987 | DE3616262A1 Process and apparatus for producing plastic carrier bags |
| 11/17/1987 | US4706439 Method of forming a filled pouch |
| 11/17/1987 | CA1229225A1 Apparatus for spreading jointing adhesive on a paper web which makes one side of a form envelope |
| 11/03/1987 | US4704101 Method for making a puncture resistant bag |
| 10/27/1987 | US4702731 Thermoplastic bag machine |
| 10/27/1987 | CA1228496A1 Bag making machine and method |
| 10/22/1987 | DE3613243A1 Process and device for producing bags |
| 10/20/1987 | CA1228287A1 Machine for forming, filling, and sealing bags |
| 10/13/1987 | US4699607 Method and apparatus for producing bags |
| 10/01/1987 | DE3609176A1 Device for producing plastic bags |
| 09/22/1987 | US4694959 Maintaining single link chain bags against skewing |
| 09/10/1987 | DE3606957A1 Device for the production of carrier bags with sinusoidal handle |
| 09/01/1987 | US4690280 Detachable plastic bag pad and process for making same |
| 08/18/1987 | CA1225538A1 Apparatus for the manufacture of plastic bags |
| 07/28/1987 | US4682976 Apparatus for making easy open and reclosable bags |
| 07/14/1987 | US4680024 Apparatus for producing bags from a tubular sheet of thermally weldable film material |
| 07/14/1987 | CA1224190A1 Method of forming a bag chain |
| 07/08/1987 | EP0227896A1 Conveyor unit for a paper and/or foil tube machine |
| 07/08/1987 | EP0227763A1 Device for transverse sealing and cutting of a folded-sheet web |
| 06/04/1987 | WO1987003249A1 Plastic bag and method and apparatus of manufacture |
| 05/05/1987 | CA1221341A2 Splayed roll folder for adhesive application |
| 04/15/1987 | EP0217982A1 A thermoplastic bag, method and system for its manufacture |
| 04/08/1987 | EP0216800A1 Apparatus for producing flexible containers. |
| 04/07/1987 | US4655737 Method for preparing flat-bottom thermoplastic sack |
| 04/07/1987 | CA1220063A1 Method of producing an envelope with pouch |
| 03/25/1987 | EP0215269A1 Device for the production of bags |
| 03/25/1987 | EP0215163A1 Methods for preparing flat-bottom thermoplastic sack and systems therefor |
| 03/24/1987 | US4652253 Method for preparing flat-bottom thermoplastic sack |
| 03/24/1987 | US4651394 Apparatus for making quadruple profile plastic tubing for bag |
| 03/10/1987 | US4648860 Envelope with pouch and method of manufacture thereof |
| 03/05/1987 | DE3530070A1 Process and equipment for the manufacture of plastic carrier bags or sacks |
| 03/05/1987 | DE3529746A1 Process and equipment for the manufacture of bags |
| 02/10/1987 | US4642084 Plastic bag making machine |
| 01/28/1987 | EP0191770A4 Flexible container with improved fluid flow guide. |
| 01/06/1987 | US4635291 Food pouch with integral collar |
| 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 |
| 12/30/1986 | US4632667 Encoding means and method for a bag making apparatus |
| 11/05/1986 | CN86102972A Method of forming flat-bottom thermoplastic sack |
| 10/29/1986 | EP0199508A2 Method for preparing flat-bottom thermoplastic sack |
| 10/21/1986 | US4617785 Packaging apparatus |
| 09/09/1986 | US4610654 Guide structure for apparatus for sack end forming apparatus |
| 09/09/1986 | US4610650 Plastic bag handle forming apparatus |
| 09/02/1986 | US4609367 Bag making machine and method |
| 09/02/1986 | US4609366 Apparatus for the manufacture of plastic bags by wave-like incision to define handgrips |
| 08/27/1986 | EP0191770A1 Flexible container with improved fluid flow guide |
| 08/14/1986 | WO1986004545A1 Former for form, fill and seal packaging machines |
| 08/12/1986 | US4605392 Apparatus for making plastic carrier bags |
| 08/12/1986 | US4604854 Machine for forming, filling and sealing bags |
| 08/05/1986 | US4603540 Apparatus for making packaging bags |
| 07/29/1986 | CA1208470A1 Apparatus for separating bag ends during manufacture |
| 06/24/1986 | CA1206363A1 Drive system for plastic bag making apparatus |
| 06/24/1986 | CA1206362A1 Bag making machine having a separating apparatus |
| 06/24/1986 | CA1206361A1 Plastic bag handle forming apparatus |
| 06/17/1986 | CA1206027A1 Method of making a piece of tube from a flat web of flexible material, and apparatus for carrying out the method |
| 06/03/1986 | CA1205312A1 Apparatus and method for forming and stacking plastic bags |
| 04/22/1986 | US4584706 Chain of laterally interconnected bags |
| 03/05/1986 | EP0173506A2 Methods for preparing a stack of thermoplastic sacks |
| 02/18/1986 | US4571235 Methods for preparing flat-bottom thermoplastic sack and systems therefore |
| 02/13/1986 | WO1986000868A1 Flexible container with improved fluid flow guide |
| 02/04/1986 | US4568322 Plastic bag machine having a separating apparatus |
| 02/04/1986 | US4567984 Plastic bag package |
| 12/10/1985 | US4557713 Bag making machine and method |
| 11/19/1985 | US4554192 Grocery sacks |
| 11/19/1985 | CA1196848A1 Method and apparatus for high speed pouch and bag making |
| 11/13/1985 | EP0161098A2 A thermoplastic bag, method and system for its manufacture |
| 11/12/1985 | US4552551 Double- and bottom-seam bag-making method and apparatus |
| 10/29/1985 | US4549877 Apparatus for making bags of thin synthetic-resin film |
| 10/15/1985 | US4546595 Method and apparatus for packaging articles of various sizes with a continuous length of heat sealable film |
| 10/15/1985 | CA1195296A1 Tubular bag and method of making the same |
| 10/02/1985 | EP0156627A2 Vacuum bag fluid flow guide |
| 10/01/1985 | CA1194401A1 Transverse severing apparatus for webs |