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| Number | Title | Issue Date |
| 7156798 | Blanking station of a diecutting press The blanking station of a diecutting press comprises an upper cradle for a blanking device and gripper bars for conveying the sheets in progress. This upper cradle includes devices for the removable mounting alternately of a blanking device or of a delivery device o... | 01/02/2007 |
| 6964798 | Multi-layered polymer based thin film structure for medical grade products A multiple layer structure comprising a first and a second skin layer, each skin layer composed of a polypropylene containing polymer, and a radio frequency (“RF”) susceptible layer adhered to and between the first and second skin layers. The RF layer has a firs... | 11/15/2005 |
| 6877543 | Sealing assembly A sealing assembly (10) for sealing flexible packaging materials comprising: a sealing mechanism for sealing the packaging material; and a spreading mechanism for spreading the packaging material to be sealed prior to sealing, the spreading mechanism includin... | 04/12/2005 |
| 6719867 | Heat sealer for thermoplastic films A heat sealing/severing device for heat sealing thermoplastic films together. The device includes front and rear opposing jaws that are moveable between an open position and a closed position. The open position defines a zone for inserting the thermoplastic films be... | 04/13/2004 |
| 6575219 | Method and device for interlocking stackwise plastic bags, especially bags for automatic machines, by welding The invention relates to a method and a device for interlocking stackwise plastic bags, especially bags for automatic machines, by welding, wherein welding is effected by an interlocking device (21) integrated into the grip hand (17) of a robot (16) with ... | 06/10/2003 |
| 6086524 | Reclosable storage bag and method for making the same A storage bag and a method and apparatus for forming such a storage bag. The storage bag contains a reclosure tie formed as an integral marginal portion of the bag beyond an edge of the bag. The marginal portion includes overlying layers of bag material t... | 07/11/2000 |
| 5976300 | Method of sealing a port tube in a container The present invention provides a method for connecting rounded members between planar members comprising the steps of providing a rounded member having an outer layer having a first melting temperature range and an inner layer concentrically disposed with... | 11/02/1999 |
| 5967961 | Welding unit and bag-making machine with such a welding unit A welding unit for forming defining weld lines in an elongate web, preferably in a bag-making machine, includes a drive means, which is arranged in an endless loop, and at least one sealing jaw. The sealing jaw is connected to the drive means for movement... | 10/19/1999 |
| 5964688 | Linear clamping assembly for bag sealing machines A seal bar assembly which includes a support structure (21), and at least a first seal bar segment (22) and a second seal bar segment (23) mounted substantially parallel to each other on the support structure. The seal bar segments define a gap (28) there... | 10/12/1999 |
| 5755923 | Heat seal apparatus An apparatus is provided for creating a heat seal in polymeric film packaging material located between adjacent bundles of one or more workpieces. The apparatus comprises a support frame and a conveyor system associated with the support frame for receivin... | 05/26/1998 |
| 5673534 | Reclosable storage bag A reclosable bag includes a detachable reclosure tie having a tail portion formed by a series of spaced elongated seals and a closed loop. Apparatus for forming the reclosure tie with a bag includes first and second sealing jaws with external and internal... | 10/07/1997 |
| 5662575 | Method and apparatus for continuously forming bags A method for continuously forming bags comprising continuous steps of heat-sealing a continuous tubular plastic film, such as a continuously formed inflation tube or the like, widthwise at given positions thereof while the tubular film is being conveyed, ... | 09/02/1997 |
| 5620542 | Apparatus and method for sealing valved bags transported by a conveyor A method and apparatus for sealing a valved bag transported by a conveyor. The valved bag has a body with a longitudinal axis, a center of gravity, and a sealable valve. At least a portion of the sealable valve protrudes from the body in a substantially p... | 04/15/1997 |
| 5571370 | Apparatus for heat-sealing thermoplastic materials An apparatus for heat-sealing thermoplastic materials includes a sealing jaw with a groove in which a thermal strip is mechanically anchored. The flange portions of the jaw projecting on either side of the groove are compressed towards one another and tow... | 11/05/1996 |
| 5540644 | Packing bag for light sensitive materials and manufacturing method therfore A bag for packing a light-sensitive material is disclosed. The bag has an outermost surface and an innermost surface and is essentially consisting of a material for making the bag which comprises not less than 70% by weight of polyethylene and 1 to 10% by... | 07/30/1996 |
| 5529659 | Machine and associated apparatus for attaching zippers to plastic bags The two separable elements of a conventional plastic zipper are advanced through a zipper guide slot from the inlet to the outlet end of a machine, simultaneously with two sections of a plastic film or web, one section of which overlies one of the zipper ... | 06/25/1996 |
| 5518578 | Apparatus for sealing the fin of a gabled carton An apparatus for sealing a fin at a gabled end of a carton is disclosed. The apparatus includes a longitudinal force mechanism for applying a sealing force to a first pair of opposed flaps of the gabled end of the carton. The longitudinal force mechanism ... | 05/21/1996 |
| 5484375 | Method & apparatus for sealing fitment tubes into pouches The present invention relates to a method of heat sealing fitment tubes to pouches or bags of flexible film using a pair of hot bars. Also disclosed is the use of warm bars or cold bars to cool the hot bar seal. An apparatus for producing pouches with fit... | 01/16/1996 |
| 5398486 | Tubular bagging machine for the continuous manufacture of bags having folded sides A tubular-bag packaging machine having at least one pair of cross-sealing jaws (25) which are supported on a holding device (15) movable vertically back and forth by means of a connecting rod (14) as well as horizontally through a four-bar mechanism compr... | 03/21/1995 |
| 5324233 | Method and apparatus for sealing fitment tubes into pouches The present invention relates to a method of heat sealing fitment tubes to pouches or bags of flexible film using a pair of hot bars. Also disclosed is the use of warm bars or cold bars to cool the hot bar seal. An apparatus for producing pouches with fit... | 06/28/1994 |
| 5284002 | Apparatus and method for making a reclosable storage bag A storage bag and a method and apparatus for forming such a storage bag. The storage bag contains a reclosure tie formed as an integral marginal portion of the bag beyond an edge of the bag. The marginal portion includes overlying layers of bag material t... | 02/08/1994 |
| 5167107 | Pinch sealer drive mechanism There is disclosed a pinch sealer drive mechanism for a form fill and seal machine, or the like, wherein a bi-directional rotary actuator is employed to rotate a crank with two oppositely disposed levers, each of which is linked to a slide. Thus, there ar... | 12/01/1992 |
| 5024642 | Rotary draw tape bag making apparatus and method An apparatus is provided for continuously sealing a thermoplastic draw tape to a thermoplastic bag at a sealing section. The bag forms one of a plurality of bags formed on a continuous web of thermoplastic material. The bag includes a hem defining a chann... | 06/18/1991 |
| 5019027 | Method and apparatus for sealing reclosable flexible containers without spot sealing An apparatus and method for manufacturing reclosable thermoplastic containers which eliminates the need for spot-sealing zipper closures or zipper closure elements to a web of thermoplastic film prior to forming side seals and zipper end seals is provided... | 05/28/1991 |
| 5015223 | Hotseal jaws and cutoff knife assembly for processing thermoplastic film bag making material Thermoplastic film bag making material is processed between a hotseal jaw and cutoff knife assembly. The apparatus has complementary first and second jaws between which the material is received for sealing bag side edge areas of the bag making material. T... | 05/14/1991 |
| 5014497 | Method and apparatus for smoothing of bag making material in form, fill and seal machines A device for assuring substantial smoothness in bags formed on a form, fill and seal machine comprising structure engageable with a closure along one edge of flattened bag making material below a forming and filling tube, and cooperating members operating... | 05/14/1991 |
| 5009632 | Method and device for joining foil hoses A transverse-welding station [(12)] is provided for joining the hose parts [(11a, 11b)] of foil hoses [(11)] that are welded to bag lengths [(BL)] by transverse welds [(21, 22)]. In this station, the hose parts are superimposed such that the joining weld ... | 04/23/1991 |
| 4994137 | Bag making machine sealer slitter apparatus A bag making machine sealer slitter apparatus for transversely sealing together and severing two layers of a tubular web of thermoplastic resin film, thereby forming a bag wherein the sealer slitter apparatus essentially comprising a sealing mans having t... | 02/19/1991 |
| 4986804 | Method for forming angular seals in side-gussetted bags Seals are formed in bags made from a flexible web. The sealing element is a heated wire. The thermal conductivity of the wire is selected in reference to the melt and tack characteristics of the film being sealed such that when the film is placed in heat-... | 01/22/1991 |
| 4895556 | Sealing element for angle seals and T-shirt bags Seals are formed in bags made from a flexible web. The sealing element is a heated wire. The thermal conductivity of the wire is selected in reference to the melt and tack characteristics of the film being sealed such that when the film is placed in heat-... | 01/23/1990 |
| 4869048 | Stretcher for package forming A method and apparatus for forming bags such as in a form, fill and seal machine wherein the bags are formed by drawing film downwardly over a filling tube and cross-sealing the bag tube and applying a lateral stretching force to the bag tube at the locat... | 09/26/1989 |
| 4826475 | Sealing machine for glue-coated material in sheets The present invention relates to a machine for sealing material in sheets, which have been pre-coated with beads of glue affected by heat, preferably electronically printed toner beads, the beads coming into engagement with each other after folding the sh... | 05/02/1989 |
| 4804356 | Apparatus for processing baglike container blanks An apparatus for processing baglike container blanks by fitting the blank around a pair of forming plates arranged at a distance from each other in parallel, folding a pair of triangular ears flat while projecting the ears sidewise from the portion of the... | 02/14/1989 |
| 4792047 | Process of forming an end closure A process of forming an end closure of one end of a stick of shirred sausage casing. The casing 10 is twisted and then the twisted neck (16) is compressed and heated to seal it. The twisted portion is severed so as to form an end seal with about four to e... | 12/20/1988 |
| 4764159 | Document file The present invention is drawn to an improved method of making a document file which has a pair of covers and a plurality of file elements laminated one upon another between the covers. The file elements are hot-sealed together and to the covers. The cove... | 08/16/1988 |
| 4753629 | Cam driven hem sealer An improved thermoplastic film heat bonding apparatus includes a heated seal bar, a support member supporting the heated seal bar for reciprocating motion against a platen and a resilient coupling between the support member and the heated seal bar to allo... | 06/28/1988 |
| 4682976 | Apparatus for making easy open and reclosable bags An easy open and reclosable bag has flexible sheet walls sealed together to form a pouch. A separable reclosure tie is located adjacent one of those seals. The reclosure tie is composed of extensions of the bag walls which have an integral channel-shaped ... | 07/28/1987 |
| 4650452 | Method for joining a tube to a collection pouch A rigid, hollow cylindrical insert is designed to be located and to remain in the end portion of a deformable plastic tube. The end portion of the tube is situated between thin film layers with the insert aligned with an edge to be sealed. The assembly is... | 03/17/1987 |
| 4553377 | Packaging machine with sealing means For producing transverse seams on tube bag machines, two conjointly, oppositely moving sealing tool jaws (15, 16) are provided, which are movable on a carriage (6) during the sealing process. For driving the sealing tool and selecting an appropriate stroke len... | 11/19/1985 |
| 4546592 | Apparatus for sealing a liquid pack Apparatus for sealing a liquid package made of paper coated with plastic on at least one surface including a pair of extending fingers that can be inserted in the open end of the package to flatten the top edges thereof into a single strip; a pair of weld... | 10/15/1985 |
