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| Number | Title | Issue Date |
| 8012076 | Method and apparatus for making bags A machine and method for making bags is described and includes a web traveling from an input section to a rotary drum, to an output section. The rotary drum includes at least one seal bar, having a first sealing zone, and an adjacent weakening zone. The weakening zo... | 09/06/2011 |
| 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 |
| 7179215 | Process and apparatus for producing packs with an outer wrapper as well as reel unit In the production of packs with outer wrappers which have a tear-open strip (12), the latter of continuous material strips (18), for the purpose of severing the tear-open strips (12), are provided with printing, markings (24), etc. Moreov... | 02/20/2007 |
| 7160097 | Device for forming groove pattern of light-guiding plate and method for forming groove pattern by using the same A device and method for forming a groove pattern in a light-guiding plate for obtaining high luminance and decreasing processing time, thereby improving yield. The device has a tool unit including a tool guide and a head which is further provided with heating plate ... | 01/09/2007 |
| 7007579 | Paper elimination in the production of battery plates A method and apparatus for continuously producing pasted positive and negative electrode plates from pasted lead or lead alloy expanded, punched or cast metal mesh strip for use in lead-acid batteries without the use of paper barriers. The heating of cutting devices... | 03/07/2006 |
| 7000369 | Feed roll for package tubing equipped with cutting and sealing means The invention concerns packaging of products on sale outlets. It concerns a feed roll for heat sealing package tubing reel (11), comprising a body (3) provided with, in particular: means (4) supporting at least one reel (2) of package tub... | 02/21/2006 |
| 6554182 | Packaging container for the cold storage of liquid foods and a method of producing the packaging container The disclosure relates to a packaging container for long-term cold storage of liquid foods for retaining superior flavor and aroma properties in the packed product, and produced from a packaging laminate including a core layer of paper or paper-board, an ... | 04/29/2003 |
| 6254521 | Apparatus for manufacture of a plastic bag with standup bottom wall A flat plastic bag is formed from a side gusseted tubular web. The bag is formed with an open end and a opposite spaced end seal. Hinge crease patterns are formed in each of the gusseted portions at the bottom end of the bag. The pattern includes a two ri... | 07/03/2001 |
| 6168558 | Roll of bags and method and device for producing the same Method and device for producing rolls (17) of bags. At least one longitudinal side edge (15, 16) of a line of overlapping bags (17) is folded towards the centre axis of said line of bags. The line is then winded to rolls (17).... | 01/02/2001 |
| 6095959 | Method and unit for feeding, in a product wrapping machine, a continuous band of wrapping material, the surface of which is pre-impregnated with an aromatizing substance In a method and unit for feeding, in a product wrapping machine, a continuous band of wrapping material, the surface of which is pre-impregnated with an aromatizing substance, the band is unwound from a reel of wrapping material and is fed, along a given ... | 08/01/2000 |
| 6007468 | Apparatus for manufacturing a product in membrane or film form for covering sanitary towels or nappies or for filtering systems An apparatus is described for forming a web (N) that is permeable to liquids and designed to separate two environments and to allow the liquid to flow in one direction from one of said environments to the other, in which said web is caused to pass between... | 12/28/1999 |
| 5816990 | Packaging apparatus Apparatus is disclosed for producing discrete packages which can be individually varied in length so that they can be used for packaging articles such as cuts of meat which vary in length. The apparatus comprises drive rolls for feeding a flat tube of pla... | 10/06/1998 |
| 5618252 | Packaging apparatus Apparatus is disclosed for producing discrete packages which can be individually varied in length so that they can be used for packaging articles such as cuts of meat which vary in length. The apparatus comprises drive rolls for feeding a flat tube of pla... | 04/08/1997 |
| 5509884 | Container carrier A plastic carrier for carrying containers includes container engaging portions which extend from a joint. The joint is at adjacent edges of the container engaging portions. The container engaging portions include a plurality of annular bands for securely ... | 04/23/1996 |
| 5393293 | Method and apparatus for forming a shrinkable bag having an integral handle Bag making apparatus and method for forming a handle opening in a thermoplastic food packaging shrink bag includes both cold cutting and hot cut cutting operations to form a handle which, on heat shrinking the bag, is strong and has an enhanced appearance... | 02/28/1995 |
| 5318499 | Dough container with preweakened non-peel label An easy-open, spiral wound container for packaging refrigerated dough products includes a spirally wound fibrous core layer, forming an unbonded spiral butt joint. The container also includes an inner liner layer and an outer label layer, each having a se... | 06/07/1994 |
| 5232430 | Apparatus for piercing slits in plastic sheet material A piercing blade for perforating slits in a continuous tubular web of thermo-plastic material is shown. The blade is used in a machine to form individual bags from the tube by heat sealing the bottom and perforating the top of the next bag. The piercing t... | 08/03/1993 |
| 5201697 | Process and apparatus for making a wrapping from a thin pleated sheet Wrappings from thin pleated sheets are made from a continuous thin paper tape and the like by first making transversal folds in the tapes to form pleats, fixing the edges of the pleats and then folding the fixed edges to form hems. The hemmed pleated tape... | 04/13/1993 |
| 5129875 | Manufacturing process of covering foils for foldable display boxes, windows produced in this way and packing boxes provided with such windows This invention is related to a manufacturing process of covering foils of packing boxes extending over at least one edge of the box. The process comprises the steps of cutting slots in a film (3) of rigid transparent material, of glueing a film (4) of fle... | 07/14/1992 |
| 5098365 | Method of connecting a gripping device to sheet or web-formed packaging material A method is disclosed of attaching a gripping device to a sheet of packaging material that is to be formed into a container includes the steps of forming a hole in the sheet of packaging material, inserting an anchorage device in the hole, sealing the anc... | 03/24/1992 |
| 5019028 | Method and apparatus for perforating and/or severing tubular bodies Tublar workpieces are formed with perforations of desired size and/or shape by repeatedly piercing selected portions of the workpieces by needles, pins or analogous piercing tools. The tools can be stationary while the workpieces roll therealong, or the w... | 05/28/1991 |
| 5001325 | Method of providing score lines in packaging material A method of providing score lines in packaging material by local evaporation using a laser beam, wherein the laser beam and the packaging material are movable relative to each other. The score lines are provided in a recurring pattern on at least one side... | 03/19/1991 |
| 4997416 | Method of making a stand-up plastic bag An improved method of making a stand-up plastic bag in which heated pins are used to seal the gusset walls. The pins are heated at a temperature lower than melting point of the thermoplastic which forms the exterior contiguous portions of the gusset walls... | 03/05/1991 |
| 4946432 | Device for sealing and perforating a thermoplastic film The invention consists of a device for welding and perforating a thermoplastic film folded back on itself. The device consists of a support for supporting two electrically heated welding strips and a perforation device. The perforation device is movably s... | 08/07/1990 |
| 4902269 | Device for the sealing of a port or fitment on a thermoplastic film Device for welding a mouthpiece to a thermoplastic film comprising a frame, a support plate carried by the frame and moveable with respect to the latter, a welding head rigidly connected to the support plate, and at least one annular heating resistance ca... | 02/20/1990 |
| 4860621 | Heat knife holding device for heat cutting plastic films According to the invention, a heat knife 1 is spaced from and disposed parallel to an arm 8 for holding the heat knife 1. A plurality of spacers 11 and a plurality of pull bolts 10 are installed between the heat knife 1 and the arm 8. The pull bolts 10 is... | 08/29/1989 |
| 4786275 | Method of forming a compartmented bag A method of forming a severable compartmented T-shirt bag comprising heat welding overlying lengths of a flattened tubular web of thermoplastic material centrally therealong to define a compartment to each side of the heat welding and a side edge seam for... | 11/22/1988 |
| 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 |
| 4642086 | Apparatus for forming flexible fold lines in a thermoplastic sheet There is provided an improved apparatus for forming foldable box blanks from a thermoplastic sheet by forming flexible fold lines in the thermoplastic sheet, with the apparatus including a plurality of scoring tools and a flat plate having a plurality of ... | 02/10/1987 |
| 4610653 | Heat sealing and cutting means A hot wire has one end mounted on a pivotally supported arm which is biased to keep the wire straight and taut. The end of the wire is bent to an L-shape and is rigidly attached to the arm. Between the bend and the point of attachment, the wire is formed ... | 09/09/1986 |
| 4460348 | Method for producing a two-piece paper container A method for producing two-piece paper containers having waterproofness, water repellency, permeability and good stiffness without using any adhesive. A container body wall member and a container bottom panel member are blanked out from a base paper made ... | 07/17/1984 |
| 4318768 | Slit-sealing apparatus for high-density plastic sheets Slit-sealing apparatus for high density plastic sheets is disclosed. The sheets to be slit-sealed are passed over rollers, at least one of the rollers having a brake so that the plastic is put in tension. A curved tensioning bar is urged against the sheet... | 03/09/1982 |
| 4290763 | Method for producing enclosed multipaneled envelopes A method for producing an enclosed, multipaneled envelope from webs of material in a manner such that the desired multipaneled shape of the envelope can be formed by a single peripheral application of a platen sealing device to positioned webs comprising ... | 09/22/1981 |
| 4213817 | Apparatus for the production of an electric stack capacitor of metallized synthetic material films Apparatus is disclosed for the production of an electric stack or layer capacitor of metallized synthetic material films. The capacitor is produced by bending or folding a film by means of a set of folding wheels which are spaced double the folding width ... | 07/22/1980 |
| 4211599 | Cut-and-weld device for superimposed foils advanced in the form of strips A cut-and-weld device has two pairs of conveyor belts which run parallel to one another and grip and convey superimposed foils. A foil support plane is defined by the nip between the belts. A cutter is mounted between the pairs of belts and extends throug... | 07/08/1980 |
| 4181558 | Method and device for the tape-sealing of panels of paper, cardboard, plastic, or wood, and adhesive tape therefor A method and device for applying heat-activatable adhesive tape to boxes and the like, using sealing tape with adhesive that can be activated through radiant heat or hot air prior to its application to the box surface, where, in contact with a cold surfac... | 01/01/1980 |
| 4181070 | Method of making variable pleat paper A variable pleat filter paper pleater with rotary scoring means is disclosed. A large roll of resin impregnated paper is passed through rotary scoring means to score the paper to facilitate folding (pleating). The paper is drawn past or through the rotary... | 01/01/1980 |
| 4176147 | Plasticized polyvinyl chloride blanks and cartons A process is provided for preparing blanks and cartons of rigid polyvinyl chloride in which process the formation of the scores and the cutting of the blanks are accomplished simultaneously. The invention also provides a modified polyvinyl chloride for us... | 11/27/1979 |
| 4160894 | Method and apparatus for the focal form cutting of a moving web of material by a laser beam A desired pattern to be cut from a moving web of material by a focused laser beam is traced by eccentrically mounting the focal lens 3 in a rotatable carrier 4. The lens may also be radially displaceable (FIG. 3), inclined and rotatable (FIG. 4), doubly r... | 07/10/1979 |
| 4133252 | Method and apparatus for securing carrying handles to bags An apparatus for securing handles onto a stream of bags sequentially transported on a first conveyer and then is engaged by a second conveyer. The second conveyer interacts with the first conveyer to receive the bags and take them through a series of stat... | 01/09/1979 |
