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| Number | Title | Issue Date |
| 7367931 | Laser cutoff stacker assembly The present invention contemplates a machine and method for performing the laser sealing and laser cutting of flexible material into segments, such as a polymeric web in which the segments will ultimately be individual bags. The machine includes a generally cylindri... | 05/06/2008 |
| 7329219 | Folding apparatus in a web-fed rotary printing press A folding apparatus (1) in a web-fed rotary printing press for folding signatures (2) which are cut off from a running web of material (6) by a cutting device (40) and carried on a signature transport surface (10) of a folding blad... | 02/12/2008 |
| 7175581 | Method of forming a flexible pouch with a straw-pierceable dimple A beverage container and method for forming a beverage container having a straw pierceable portion in a wall. The beverage container has a port formed of a rigid frame having a membrane covering an aperture. The frame member is bonded to a flexible wall of a pouch. ... | 02/13/2007 |
| 7100658 | Machine for manufacturing, filling and closing mesh bags from a continuous roll of tubular mesh Machine for manufacturing mesh bags from a continuous roll of tubular mesh, and for filling and closing said mesh bags, which comprise an expansion device which is perimetric to the tubular mesh, the core expander of which is equipped with a vertical aperture which,... | 09/05/2006 |
| 7037250 | Method of forming a burst-resistant easy-open corner in a heavy duty bag A method of forming a perforated tear line in a bag to form an easy-open corner portion. The perforation blade includes a base formed to span the corner portion of the bag. The base has a first end adapted to extend to the end edge of the bag proximate a seal line, ... | 05/02/2006 |
| 6945922 | System for cutting a moving web in the cross direction to form sheets of a given length at high web speeds A system, apparatus and method is provided for perforating a web such as a paper tissue or paper toweling into distinct and perforated sheets. The invention provides a laser array capable of providing an incident beam of light upon the surface of the web. The web tr... | 09/20/2005 |
| 6913567 | Device for the extraction of signatures from a folding apparatus Signatures are extracted from a folding apparatus of a web-fed rotary printing press. These signatures are extracted by an optionally switchable shunt that is arranged adjacent a cylinder of the folding apparatus. The folding apparatus is connected to a comminuting ... | 07/05/2005 |
| 6811529 | Perpendicular perforation on zipper tape for air evacuation of package The plastic bags are provided with a web tape with a row of aperatures which are cut parallel to each other, but perpendicular to the direction of travel of the row. The aperatures are not colinear with one another. The apertures are sized to allow air to pass there... | 11/02/2004 |
| 6800051 | Process for manufacturing side fold sacks made of plastic film A method for manufacturing side fold sacks from a flat lying segment of a web of plastic tubular film provided with side folds. According to the method, the bottom end of the segment is provided in such a manner with a staggered cut or a staggered detachment along a... | 10/05/2004 |
| 6719679 | Perforation device A perforation device for making roll of plastic bag with an opening and a perforation line on each bag, comprising a cutting unit, an anvil unit and a expanding board, wherein, the cutting unit involves a main unit whereto are fitted with a toothed blade and a speci... | 04/13/2004 |
| 6705981 | Device for retention of products on a transporting surface in a folder The present invention is related to a device for seizing flat material (1). The device includes a transfer cylinder (6) rotating about an axis and having an outer surface (16). A cutting cylinder (3) cooperates with said transfer cylinder... | 03/16/2004 |
| 6685791 | Method for the production of an air bag having a three-dimensional form A method for producing for deployment in an air bag module an air bag which in its inflated condition has a three-dimensional form via the fabrication of a two layered material web from which individual air bag cut-outs are continuously cut includes conne... | 02/03/2004 |
| 6643994 | Process for converting a continuous structure into discrete, spaced apart elements The present invention relates to a process for converting a continuous structure into discrete, spaced apart elements by means of an expandable support web. First, the continuous structure is combined with a support web comprising longitudinal expansion m... | 11/11/2003 |
| 6609998 | Method and apparatus for fabricating double-ended closure bags and double compartment bags A method and a machine for making a plastic film bag with opposed closable end openings as well as a double compartment bag is described. The bags may be formed from J-folded, U-folded or tubular film sheets. In one embodiment, a bag is formed with a guss... | 08/26/2003 |
| 6440051 | Method and apparatus for fabricating double-ended closure bags and double compartment bags A method and a machine for making a plastic film bag with opposed closable end openings as well as a double compartment bag is described. The bags may be formed from J-folded, U-folded or tubular film sheets. In one embodiment, a bag is formed with a guss... | 08/27/2002 |
| 6379291 | Method and apparatus for producing and packing foil bags The present invention relates to a foil-bag producing and packing apparatus comprising at least two feed means for feeding foil material, a connecting means for connecting the foil material fed, the connecting portions--in a direction transverse to the fe... | 04/30/2002 |
| 6364820 | Forming device and method for forming a hose into a web with mutually sequential packaging blanks and such a hose A hose (1) of a flexible plastic material is designed so as to be reformed into a web (2) with mutually sequential packaging blanks (26) separated by transverse slits (27). The hose has a region (15) oriented in the longitudinal direction which is cut on ... | 04/02/2002 |
| 6280373 | Cutting tool support In a device for cutting a web of material in a folder having a cutting tool accommodated on a cutting cylinder, there is provided a cutting tool support which includes pressure bars of elastic material flanking and directly engaging the cutting tool, and ... | 08/28/2001 |
| 6207249 | Cushioning product and method with stitching A cushioning conversion machine, method and product characterized by a connecting assembly that provides a mechanical interlock between overlapped portions of sheet-like stock material to prevent "unzippering" of a low density cushioning product produced ... | 03/27/2001 |
| 6186933 | Plastic bag manufacturing process A process for bag manufacture of a bag having a first dimension from a sealed bottom of the bag to an open top of the bag, the bag being fabricated from a continuous tube of plastic film bag material. The process includes the steps of providing a continuo... | 02/13/2001 |
| 6171226 | Plastic bag bundling system A process of serially dispensing and opening a bag from a bundle of bags includes providing a bundle of bags having at least a leading bag and a plurality of trailing bags. Tabs at the top of the bags fasten to a support and sever under a first force. A f... | 01/09/2001 |
| 6132842 | Cushioning product A cushioning product having plural layers of a sheet-like stock material folded upon themselves to form a pillow-like portion. The lateral edges of the outer layer of the stock material are overlapped and connected together to maintain the geometry of the... | 10/17/2000 |
| 6110573 | Highly clean plastic film or sheet and process for its production A plastic film or sheet, wherein upon immersing a test piece of the plastic film or sheet in ultrapure water, extracting pure water from near the surface of the test piece and evaluating the cleanliness of a resulting bag based on the concentration (numbe... | 08/29/2000 |
| 6106448 | Package material processing machine A package material processing machine comprises a feeding device for feeding a package material along a predetermined feed course and a processing roller having an outer circumferential surface opposite to the feed course. The package material is processe... | 08/22/2000 |
| 5902221 | Apparatus for the stamping of waste from a stack of plastic bags A method of and an apparatus for punching a waste bundle from a stack of bags, especially to form a peripherally-closed hole in the stack as in the production of so-called tie bags, wherein with the lowering of the upper press tool, the waste bundle is cu... | 05/11/1999 |
| 5857395 | Apparatus for the manufacture of sheets of corrugated board of variable size An apparatus for the manufacture of sheets of corrugated board of variable size comprises a cross cutter for severing the entire web of corrugated board disposed, in the conveying direction of a web of corrugated board, downstream of at least one longitud... | 01/12/1999 |
| 5830118 | Packaging machine for forming free-standing pouches Longitudinally spaced pairs of laterally spaced openings are formed in a web of material prior to the web being folded into a pouch having a gusset bottom, the holes enabling the side panels of each pouch to be heat-sealed directly together at the side ma... | 11/03/1998 |
| 5830119 | Bag with closure tie and method of making A double-ended bag is formed from a tubular woven sheet having at least one tie member extending along the length of the tubular sheet. The tubular sheet is cut to create bag panels and tie member segments in registration. The bag panels are sewn together... | 11/03/1998 |
| 5807222 | Bag making machine According to the invention, there is provided a bag making machine including feeding means for feeding two or more superposed layers of plastic film longitudinally thereof and intermittently for a length, the layers of plastic film having void area means ... | 09/15/1998 |
| 5655843 | Easy opening flexible plastic bag and a method of making same An easy opening plastic bag includes a plastic front panel, a plastic rear panel, and plastic left and right end panels coupled to the front and rear panels. A plastic gusset is formed at the top of the bag and is joined to the front, rear, left, and righ... | 08/12/1997 |
| 5403428 | Apparatus for producing communication articles including postcards and envelopes The present invention relates to a method and apparatus for producing communication articles such as postcards, envelopes or the like in each of which display surfaces for information or the like are separably bonded with a synthetic resin therebetween by... | 04/04/1995 |
| 5393294 | Method and apparatus for producing sheets of corrugated cardboard with a variable format Method for producing sheets of corrugated cardboard with a variable format in which a web of corrugated cardboard is removed continuously from a heating and pulling device of s conventional corrugated cardboard installation. The sheets are processed to th... | 02/28/1995 |
| 5205650 | Tubular bag with shock absorber band tube for making such bag, and method for its production Orientable thermoplastic polymeric film material is provided with at least one stretched zone in which the material has been stretched in a first direction and, adjacent to the opposite sides of the zone, unstretched zones in which the material is substan... | 04/27/1993 |
| 5151076 | Manufacturing method for a flexible container A flexible container for lifting transportation and storing of bulk material is manufactured from a hose-like blank, where one half-length portion of the hose-like blank is turned inside out and threaded onto or fitted over the other half-length portion f... | 09/29/1992 |
| 5114394 | Punching attachment for bag making machine A single, fluid pressure-operated cylinder, which has a conventional slitter blade and punch releasably secured to the lower end of its piston rod, is secured to a plastic bag making machine so that the operating ends of the blade and punch project toward... | 05/19/1992 |
| 5049117 | Dual-envelope making machine and method of using An envelope machine which makes two envelopes at once. One web is used up to a relatively advanced point in the envelope forming process to simultaneously form two envelopes. At a terminal portion of the envelope processing, the web is cut lengthwise to f... | 09/17/1991 |
| 5000728 | Method of and apparatus for stacking bag segments Bag segments arriving one after the other in a travel direction at an upstream input station are first lifted one by one as they arrive at the input station, are inverted them, and are deposited in a stack at a downstream stacking station atop one of a pa... | 03/19/1991 |
| 4878888 | Process and apparatus for severing and subsequently stacking flat articles made of plastic film and preferably consisting of double bags A process of severing and subsequently stacking web section is disclosed, which in their central portions are provided with locating holes and preferably consist of double bags which have been severed from a tubular or semitubular, continuous plastic film... | 11/07/1989 |
| 4762514 | Method of making beverage packaging bag A method of making a beverage packaging bag made of at least one laminar panel which has an inner layer and an outer layer with appropriate portions of the laminar panel bonded and thus sealed together by heating and a plurality of cuts provided in the ou... | 08/09/1988 |
| 4758214 | Twin wicketing bag machine This application discloses a method and apparatus for converting thermoplastic web material, flat or tubular, to produce bags. A conventional bag machine produces web segments provided with a group of centrally located holes and each segment is transferre... | 07/19/1988 |
