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| Number | Title | Issue Date |
| 7780589 | Device for altering the storage capacity of a tubular mesh bag It is disclosed a device (1) for altering the storage capacity of a tubular mesh bag of heat sealable material during the manufacture thereof and the bag (15) obtained from its using. The device comprises an expansion core (2) to which the tubul... | 08/24/2010 |
| 7409810 | Vertical pouch making machine and method of making pouches A vertical form fill and seal continuous pouch machine includes a forming tube having a cross section area of CA is disclosed. A film tube is continuously formed about the forming tube and fed downward. A horizontal sealing assembly includes at least one pair of opp... | 08/12/2008 |
| 7254930 | Stationary tucker bar mechanism A stationary tucker bar mechanism attached to a vertical form, fill, and seal packaging machine used to construct a vertical stand-up pouch and a gusseted flat bottom bag. The invention involves producing a vertical stand-up pouch or flat bottom bag from a single sh... | 08/14/2007 |
| 7191575 | Vertical pouch machine A vertical form fill and seal continuous pouch machine includes a forming tube having a cross section area of CA is disclosed. A film tube is continuously formed about the forming tube and fed downward. A horizontal sealing assembly includes at least one pair of opp... | 03/20/2007 |
| 7101331 | File folders Apparatus and methods for manufacturing a folder which has front and back panels with a divider there between. The divider front and back panels and divider are taped together along a spine of the folder such that the panels and divider can be turned like the pages ... | 09/05/2006 |
| 7013621 | Adjustable package geometry web forming apparatus and method Apparatus and method for the automatic packaging of one or more articles. An adjustable web guide structure that guides the webs of film into a configuration that mimics the geometry of a package to be wrapped is provided. The webs are conveyed over the guide struct... | 03/21/2006 |
| 6679034 | Vertical stand-up pouch quick change module A vertical stand-up pouch, flat bottom bag, or flexible package, and method for manufacturing same, constructed with a quick change module modification to existing vertical form and fill packaging machines. The invention involves producing a vertical stan... | 01/20/2004 |
| 6488222 | Bag dispensing system and C-fold bag used therewith A folded gusseted plastic bag has a first side gusset formed by first, second, and third longitudinal folds, a second side gusset formed by fourth, fifth, and sixth longitudinal folds, a seventh longitudinal fold being on a side of the bag containing the ... | 12/03/2002 |
| 6280372 | Process and apparatus for preparing packaging material for the production of (cigarette) packs Process and apparatus for folding or shaping a continuous material web (10) made of thin packaging material. In this case, the material web (10) is directed through a shaping subassembly (27) which uses fixed shaping elements, namely shaping webs (46, 47 ... | 08/28/2001 |
| 6254520 | Manufacture of bags In the manufacture of bags with handles, an extruded plastics tube is extruded, folded inwardly by a first folding device (21) to form gusseted side portions (4) and flattened. A transverse heat seal is formed by a sealing device (22) and a cutting device... | 07/03/2001 |
| 6210309 | Sheet folding method and apparatus utilizing convex folder and guide An envelope blank is conveyed through a folding mechanism that folds one or more flaps of the blank. In folding a side flap the leading edge of the blank adjacent to the score line follows in a helical path a convex face of a plowshare. The plowshare face... | 04/03/2001 |
| 6019713 | Tubing machine with rotating former section for quick change-over A tube-forming machine has a tube forming section for receiving webs of material and forming it into a tube. The tube-forming section has multiple sets of tube formers for forming different types of tubes, and the tube formers are supported on opposite si... | 02/01/2000 |
| 5989172 | Method and device for manufacturing bags from tubular paper sections of a single layer or multiple layers When manufacturing bags from tubular paper sections of a single layer or multiple layers, at least one end of each flat, tubular section is expanded into a bottom square. Lateral flaps formed in this way are folded such that they overlap and partially cov... | 11/23/1999 |
| 5957823 | Folding mechanism for a bag knitting apparatus A folding mechanism for a bag knitting apparatus which is intended to fold inwardly the text-printed sides of the double-layer material strip to overcome the problems of conventional bag knitting apparatus. The folding mechanism comprises a clamping rolle... | 09/28/1999 |
| 5820540 | Folding apparatus for sheet layers Folding stations are provided successively in a single running direction of an apparatus for the single or z-like folding of lateral tongues of a sheet layer. The first station has an offset rising folding curve for tongue straightening, the second statio... | 10/13/1998 |
| 5807228 | Sheet folding method and apparatus An envelope blank is conveyed by a transport system in an envelope making machine to a folding mechanism that folds one or more flaps of the blank. In folding a side flap, the leading edge of the blank adjacent to the score line is conveyed along a convex... | 09/15/1998 |
| 5749822 | Gusset folding mechanism and method for plastic bag making machine In a bag making machine the longitudinal side edges and adjacent portions of an elongate plastic web, which is folded in half medially of its centerline, pass from a set of inlet rolls over and under, respectively, a pair of vertically spaced separating r... | 05/12/1998 |
| 5685815 | Process of using paper containing alkaline sizing agents with improved conversion capability Fine paper that is sized with a 2-oxetanone alkaline sizing agent and that does not encounter machine feed problems in high speed converting or reprographic machines, including continuous forms bond paper and adding machine paper, processes for converting... | 11/11/1997 |
| 5569145 | Method and apparatus for manufacturing a sack bottom The invention concerns a method and an apparatus for manufacturing a bag or sack bottom from tubular sections of paper or plastic web. Tubular sections of web material are fed into a feeding plane where they are subsequently sealed along selected seams by... | 10/29/1996 |
| 5409441 | Tractor feed box and multiple envelope method of manufacture and registration and fabricating apparatus A gusseted envelope or box making apparatus and method including the use of a tractor feed unit (11) which perforates the web stock (5) prior to a subsequent printing step. A thermal print head (61) precisely activates thermal ribbon (57) which is accurat... | 04/25/1995 |
| 5286248 | Flexible pouch with folded spout A flexible pouch formed from a single sheet of plastic material folded over upon itself along an umbrella like fold assembly to provide the opposed walls of a chamber for storing a product and an optional second sheet to form the bottom of the chamber. Th... | 02/15/1994 |
| 5273514 | Method for making a flexible pouch A flexible pouch is made having a gusseted bottom structure and an inwardly folded top structure from two webs. A first web is folded over on itself to form an inverted U-shape portion and excess web material is pushed inwardly at the top of the fold to c... | 12/28/1993 |
| 5181365 | Method and apparatus for forming individual pouches from a continuous web and packaging a product in the individual pouches The present invention includes a process and apparatus for producing highly specialized individual product pouches with high efficiency and simplicity at production speeds that are easily obtainable with present day forming machines, particularly, horizon... | 01/26/1993 |
| 5137505 | Bag-making apparatus with adjustable fold guides A bag-making apparatus which comprises a support table carrying a bag material which is put thereon, a pair of side guides being provided above the support table, being movable in the direction perpendicular to the traveling direction of the bag material ... | 08/11/1992 |
| 5114393 | Method and apparatus for manufacturing sacks, and sacks obtained thereby A method and apparatus for manufacturing sacks, made of polyethylene or other heat-sealable material, obtained by superposing two films or sheets which are unwound from respective rolls and are submitted to a pair of longitudinal welds to form a tube, and... | 05/19/1992 |
| 5104365 | Paper sheet bending apparatus in bag making machine Computer controlled method and apparatus for paper sheet bending in a bag making machine for making hand bags, pocketbooks, vanity cases, etc. Two computers are used to store the information needed to allow the machine to make bags of various types and si... | 04/14/1992 |
| 5094658 | Vacuum side-folder section for envelope blank folding apparatus An envelope forming apparatus has a vacuum table with apertures through which a vacuum is applied onto the surface of the vacuum table. A series of parallel endless belts move across the vacuum table and transport an envelope blank across the vacuum table... | 03/10/1992 |
| 5047000 | Attachment for forming envelopes A readily removable apparatus for use with an envelope blank-forming machine for the forming of envelopes from those blanks. The apparatus comprises an adhesive sprayer for applying adhesive on one side of a side flap of the envelope blank. It also includ... | 09/10/1991 |
| 5045043 | Flap opening mechanism and method An apparatus for producing items in selected configurations and a system and method for controlling the same. More particularly, an apparatus for producing mail pieces and a system and method for controlling it to produce mail pieces in a variety of confi... | 09/03/1991 |
| 4986806 | Gusset tubing former A gusseted tubing former designed to be incorporated in a bag manufacturing line, preferably for manufacturing paper bags from a continuous paper web. The web is formed around the periphery of the former to produce a continuous tubing. As the tubing moves... | 01/22/1991 |
| 4915679 | Manufacturing method of pleated multilayer bag In a method of manufacturing a pleated multi-layer bag, a tubular synthetic resinous film collapsed flatly, with each side edge of the film folded inwardly to form a pair of pleats extending along the side edge, is laid upon a length of an outer-layer bag... | 04/10/1990 |
| 4908009 | Corner-forming unit of a carton container-forming machine A corner forming unit of a package forming machine which employs an H-shaped guide over which the packaging material passes after it has been longitudinally sealed. A pair of rollers outside of the tube of material forms the edges of the packaging materia... | 03/13/1990 |
| 4887973 | Conforming device for a flexible film provided with projecting mouthpieces A shaping device for a web of flexible film having projecting ports comprising a shaping plate having a slit, for receiving the film, and an opening for receiving the port. An adjustable member is provided for limiting the length of the slit. A member is ... | 12/19/1989 |
| 4871347 | Apparatus for forming a flexible tubing from a single-ply or multi-ply web Apparatus for forming a flexible tubing (S) from a single-ply or multi-ply web (B) as it is continuously advanced includes two size-defining metal plates (9, 10) which define the width of the flattened tubing and are substantially parallel to each other a... | 10/03/1989 |
| 4846779 | Trapezoidally shaped paper bag and method and apparatus for manufacturing same Apparatus for manufacturing a trapezoidally-shaped paper bag comprises a cutting and processing device to form a continuous line of blanks in a paper strip, left and right guide rail units for raising up the side flaps of successive blanks, left and right... | 07/11/1989 |
| 4820252 | Method and apparatus for forming a pair of hems in superposed layers of a moving thermoplastic film web An improved method and apparatus for forming a pair of inwardly turned hems in the adjoining free edges of superposed layers of a longitudinally folded moving pliable material web, particularly superposed thermoplastic film panels for forming plastic bags... | 04/11/1989 |
| 4795412 | Apparatus for forming a hem in a moving web of film In the manufacture of draw tape bags hems are formed in the opposing panels of the moving web of folded thermoplastic film by utilizing tucker bars, that tuck the hem for the draw tape bags, equipped with a series of rubber wheels that pull the film diago... | 01/03/1989 |
| 4769969 | Apparatus for producing shipping forms The present invention provides an apparatus for producing a shipping form characterized by a folding mechanism, a cutting off mechanism, an aligning and feeding mechanism, a form inserting mechanism and a cutting mechanism.... | 09/13/1988 |
| 4764161 | Greenhouse film folding apparatus An apparatus for folding large sheets of thermoplastic film in a U-shaped fold comprising a trapezoidal former or frame which tapers from a relatively wide width to a substantially narrower width about one-half the width of the relatively wide width and w... | 08/16/1988 |
| 4714455 | Hem folder with integral tape inserter for making draw tape bags Draw tape bags are made with folding surfaces which decrease in width to the final bag height. One edge of each side of a moving web of film is tucked onto a side of a surface to produce a hem in each edge of the moving web. Rollers, which are canted with... | 12/22/1987 |
