| 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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| 12/16/1992 | CN1067022A Plastic film feeding apparatus |
| 12/14/1992 | CA2071126A1 Apparatus for stacking flat objects |
| 12/13/1992 | CA2070912A1 System and method for manufacturing envelopes |
| 12/10/1992 | WO1992021581A1 Self-standing bag and method and device for making said bag |
| 12/09/1992 | EP0516979A1 Method for making, filling and closing bags |
| 12/08/1992 | CA2070718A1 Method for producing, filling and sealing bags |
| 12/02/1992 | EP0516393A1 Reclosable pouch and method and apparatus for forming, filling and sealing the same |
| 12/02/1992 | EP0516259A1 Apparatus for feeding a continuous plastic film |
| 12/01/1992 | CA2507553A1 Reclosable pouch and method and apparatus for forming, filling and sealing |
| 12/01/1992 | CA1310847C Apparatus for controlling machines for making bags or sacks |
| 11/24/1992 | US5165799 Flexible side gusset square bottom bags |
| 11/19/1992 | DE4113747C1 Drive installation for plastics bag mfg. machine - has control assigned to high dynamic drive motor and forwarding pair of rollers for intermittent supply of plastics material web |
| 11/17/1992 | CA1310303C Packs for articles and method of producing same |
| 11/12/1992 | DE4114720A1 Paper bag making machine - has delivery cylinder which incorporates endless belt running in opposite direction to cylinder periphery |
| 11/11/1992 | EP0512231A1 Method and device for making paper bags with handles |
| 11/10/1992 | US5161895 Gift sack with drawstring or the like and method for making the same |
| 10/13/1992 | US5154037 Process and apparatus of feeding a web of material to a processing machine, especially a packaging machine |
| 10/13/1992 | CA2040384A1 Electrostatic pinning in a process for gusseting film web |
| 10/08/1992 | DE4111021A1 Carrier bag production system - forms handles from sheets folded to form arms secured at ends to further sheets |
| 10/06/1992 | US5152613 Plastic film zipper bag having straightened heat seals |
| 09/29/1992 | US5150561 Method for making side opening flexible bag with longitudinally oriented carrying handle secured to side panels |
| 09/29/1992 | US5150560 System and method for manufacturing envelopes |
| 09/24/1992 | DE4122887C1 Prodn. of plastics film bags - with grip strip welded to edges prior to doubling over |
| 09/23/1992 | EP0505068A2 Method of straightening heat seals on plastic film zipper bags |
| 09/23/1992 | EP0505057A1 Protruding end clamp stops for plastic reclosable fastener |
| 09/23/1992 | EP0505055A1 Method of making protruding end stops for a plastic reclosable fastener |
| 09/23/1992 | EP0504317A1 Side opening flexible bag with longitudinally oriented carrying handle secured to side panels. |
| 09/22/1992 | US5149201 Angle sealed bottom grocery sack |
| 09/22/1992 | CA1307770C Chain bags, method and apparatus |
| 09/15/1992 | US5147278 Air separation method and apparatus for pleating a plastic film web |
| 09/15/1992 | US5147272 Method of making a vented pouch |
| 09/15/1992 | US5147071 Collapsible bag with evacuation passageway and method for making the same |
| 08/25/1992 | CA1306635C Method and apparatus for making reclosable bags with fastener strips in a form fill and seal machine |
| 08/19/1992 | CN1063657A Process and apparatus for feeding web of material to processing machine, especially packaging machine |
| 08/11/1992 | US5137506 In-line folder/gluer |
| 08/11/1992 | US5137505 Bag-making apparatus with adjustable fold guides |
| 08/06/1992 | DE4102877A1 Device for forming stack of bags from tube of thermoplastic - uses row of spikes with roughened ends, with roughening achieved by circumferential grooves |
| 08/04/1992 | US5135460 Apparatus for controlling machines for making bags or sacks |
| 08/04/1992 | CA1306038C Bi-directional registration of servo indexed webs |
| 07/21/1992 | US5131973 Delivery device for bags with freshly glued bases |
| 07/21/1992 | US5131121 Protruding end stops for plastic reclosable fastener |
| 07/08/1992 | EP0428679A4 Apparatus and method for positioning a port in an aperture in a web or film |
| 07/01/1992 | CN1017232B Sheet stacking and transferring device |
| 06/30/1992 | US5125887 Device for the accumulation of sheet material articles downstream of the machine which produces them |
| 06/30/1992 | US5125885 Bonded envelope stack and method and apparatus for making same |
| 06/16/1992 | US5121996 Fluid containers and ports therefor |
| 06/16/1992 | CA1303638C Method and apparatus for folding an elongate storage bag |
| 06/09/1992 | US5120553 Of heat shrinkable thermoplastic resin; for packaging poultry |
| 05/29/1992 | WO1992008646A1 Process and apparatus for preparing a strip of flexible closure material to be applied to a receptacle |
| 05/29/1992 | CA2094594A1 Process and apparatus for preparing a strip of flexible closure material to be applied to a receptacle |
| 05/27/1992 | DE4037097A1 Conveying system in plastic film bag prodn. - detects records and automatically corrects effects of film slippage due to frictional drive |
| 05/26/1992 | CA1301613C Process and apparatus for cutting and sealing multiple plies of thermoplastic material having thickened sections |
| 05/26/1992 | CA1301517C Bag pack |
| 05/20/1992 | EP0277974B1 Apparatus for sealing a web of film |
| 05/19/1992 | US5114393 Method and apparatus for manufacturing sacks, and sacks obtained thereby |
| 05/19/1992 | US5113637 Nested plastic bags and method of manufacture |
| 05/19/1992 | CA1300954C Multiple seam forming apparatus for continuously running web |
| 05/13/1992 | EP0484599A1 Closure for a bag |
| 05/12/1992 | CA1300414C Clamp for bag producing machine |
| 04/28/1992 | US5108085 Apparatus and method for the production of flexible products |
| 04/22/1992 | EP0481137A1 Paper sheet bending apparatus in bag making machine |
| 04/17/1992 | CA2027749A1 Apparatus for the manufacture of hot-seal garment bags |
| 04/15/1992 | EP0395721B1 Control and detection circuitry for mass airflow sensors |
| 04/14/1992 | US5104365 Paper sheet bending apparatus in bag making machine |
| 04/14/1992 | US5103546 Process for preparing a strip of flexible closure material to be applied to a receptacle |
| 04/01/1992 | EP0477672A1 Method for making self-sealing envelopes |
| 03/31/1992 | CA1298244C Extruded separable fastener and method and apparatus for making same |
| 03/24/1992 | US5098511 Flexible guide for folded, moistened documents |
| 03/24/1992 | CA1297766C Apparatus for sealing a web of film |
| 03/24/1992 | CA1297648C Method and apparatus for extruding a fastening profile onto a traveling film web |
| 03/18/1992 | EP0475266A1 Shrink bag with integral handle and method of making the same |
| 03/10/1992 | US5094656 Servo drive bag machine |
| 03/10/1992 | CA1297078C Portable container, method for its production and device for accomplishing the method |
| 03/10/1992 | CA1296987C Film guide system |
| 02/26/1992 | EP0471670A1 Nested plastic bags, method of manufacture, and apparatus for manufacturing. |
| 02/20/1992 | WO1992002428A1 A self-sealing bag |
| 02/19/1992 | EP0471134A1 Device for the accumulation of bags made of thermoplastic film downstream of the machine which produces them |
| 02/18/1992 | US5088971 Method of making protruding end stops for plastic reclosable fastener |
| 02/11/1992 | US5087235 Method for making a collapsible bag with spout |
| 02/11/1992 | US5087234 Method of forming an easy-open bag pack |
| 02/11/1992 | US5086964 Dual drive web feed apparatus and method |
| 02/04/1992 | US5085111 Apparatus for stacking flat articles |
| 01/28/1992 | US5083999 Electrostatic pinning in a process for gusseting film web |
| 01/28/1992 | US5083997 Suspension pack and apparatus for producing suspension packs |
| 01/21/1992 | CA1294473C Transverse zipper bag material and method of and means for making same |
| 01/07/1992 | US5077957 Web of interconnected bags |
| 01/07/1992 | CA1293882C Device for collecting bags or sacks |
| 12/31/1991 | US5077064 Easy-open recloseable peggable package |
| 12/31/1991 | US5077001 Tamper-evident sealing system for envelope having special characteristics and method of making same |
| 12/24/1991 | US5074735 Wicketing apparatus |
| 12/11/1991 | EP0460518A1 Apparatus for sealing and cutting or perforating a plastic web |
| 12/03/1991 | US5069659 Apparatus for the production of shopping bags having reinforced handle holes |
| 11/27/1991 | CN2089402U Improved rotary bag making machine |
| 11/26/1991 | US5067822 Method of forming recloseable packages, profiles used therein, and packages produced thereby |
| 11/21/1991 | EP0457304A1 Bag-making apparatus |
| 11/19/1991 | US5065899 Sectional or pre-cut zipper strips, magazine storage and feed means, and method |
| 11/14/1991 | WO1991017043A1 Method of making a tear-strip envelope |
| 11/12/1991 | US5063639 Zippered closure for packages |
| 11/05/1991 | US5062825 Apparatus and method for the production of flexible products |
| 11/05/1991 | CA1291771C Zero cycle interrupt wicket stacker |