子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Apparatus and method for applying a twist-tie to a packaging container | US277359 | 1994-07-19 | US5389190A | 1995-02-14 | Brian D. Larsen; James A. Beckman; Stan W. Drietz; Scott L. Nelson; Mike P. Feltman; Gary L. Lowe |
| An apparatus for applying a twist-tie to a multiple serving, recloseable, flexible packaging container including a payout mechanism for holding a supply of twist-tie material. An extracting and cutting mechanism is configured to extract a continuous length of twist-tie material from the supply of twist-tie material and cut a twist-tie of a desired length. A magnetic application mechanism produces a magnetic force sufficient to remove the twist-tie (at least a portion of which is metallic) from the extracting and cutting mechanism. A dispensing mechanism dispenses a hot melt adhesive material on the twist-tie held by the magnetic application mechanism. The magnetic application mechanism then applies the twist-tie to a surface of a container. The adhesive material acts to secure the twist-tie to the container. | ||||||
| 22 | Process for producing paper bags with handles | US152172 | 1993-11-16 | US5382215A | 1995-01-17 | Gunter Mattiebe |
| A process for producing paper bags with handles glued to the insides of the facing opening edges, includes perforating a paper web with transverse perforation lines spaced at distances corresponding to the section lengths necessary to produce the bags. At a given distance from the transverse perforation lines the handles are glued in adjacent pairs to the web in such a way that the outer handle parts project beyond the transverse perforation lines. The web is joined together into a tubular web by folding over its side edges, such that the handles face each other. The overlapping side edges that have been folded together are glued to form a seam. The sections are detached along the transverse perforation lines and each section is provided with a bottom portion at the end opposite the handles. Adhesive coatings are applied to the web in a transverse direction between arms of the handle and Z-shaped folds are made in the adhesive area and folded onto the adhesive, using pressure, to prevent the upper edge of the bag from tearing. | ||||||
| 23 | Apparatus for forming and applying handles to bags | US90155 | 1993-07-23 | US5350350A | 1994-09-27 | Giacomo Maccalli |
| An apparatus for carrying rope handles for paper bags to a paper bag forming station is disclosed. The rope handles are supplied to the bags at the entrance of the forming station before forming the bags. The apparatus includes a first and a second plurality of gripping devices (36) for gripping the handles (34) fed by a handle forming station. The first and second plurality of gripping devices (36) are arranged substantially side by side at the entrance of the bag forming station towards which they move. At least one pair of units (94, 98, 104) for taking the handles (34) is located at the entrance of the bag forming station. Also provided are members (70, 78, 88, 92) to control the inhibition of the gripping devices (36) and the actuation of the units (94, 98, 104) for taking the handles (34) from the gripping devices (36) so that the handles (34) are fed to the paper bag forming station. | ||||||
| 24 | Apparatus for the production of shopping bags having reinforced handle holes | US454278 | 1989-12-21 | US5069659A | 1991-12-03 | Franz Bochtler; Wilhelm Ley |
| An apparatus for the production of shopping bags provided with handle holes reinforced by welded-on tabs of thermoplastic synthetic resin film includes a unit for effecting cyclic stepwise advancement of film webs forming sides of each bag; a unit for punching handle holes into the welded-on tabs and devices for welding and severing of the films webs to form individual shopping bags transversely to the direction of the advancement of the film webs, as well as a device for feeding tabs of thermoplastic synthetic resin films to positions on the film webs and for welding the tabs to the film webs. The device for feeding and welding of the tabs comprising a turntable which is rotatable about an axis perpendicular to the advancing direction of the film webs which operates cyclically in synchronism with the stepwise advancement of the film webs. | ||||||
| 25 | Apparatus and method for making Z-folded zippered film | US589178 | 1990-09-27 | US5047002A | 1991-09-10 | Larry M. Zieke; James C. Pawloski |
| A method and apparatus for producing rolls of thermoplastic film stock wherein zipper elements are interlocked for structural support while the web is open, resembling a "Z" in cross-section, and ready for use on container and packaging machines. | ||||||
| 26 | Servo driven draw roll for bag machine | US270889 | 1988-11-14 | US5000727A | 1991-03-19 | Peter Hatchell; Charles A. Sample; Jeffrey Ross |
| A machine for the continuous production of plastic bags utilizes a servo drive motor to drive the machines film web draw roll assembly and through a seal roll index gear also to drive a seal roll of the machine in coordination with the servo driven draw roll. Control of the servo motor is through a motion controller receiving inputs form the servo motor. | ||||||
| 27 | Method of manufacturing packing and strip material therefor | US299470 | 1989-01-18 | US4969967A | 1990-11-13 | Leif B. Sorensen; Soren H. Sorensen |
| A packing comprising first and second opposed surfaces in a closure area of the packing has profiled portions secured to and extending over each of the opposed surfaces, which profiled portions are adapted to be releasably interengaged to permit connection and disconnection of the opposed surfaces. The profiled portions are each formed integrally with an outer layer of a strip material secured to the associated one of the opposed surfaces. The outer layer of the strip material is formed of a material well suited for forming a peel seal weld with the other opposed surface of the packing, such as a portion of the outer layer of the opposing strip material. The outer layer of each strip material is secured to the one of the first and second opposed surfaces via a base layer of the strip material to which the outer layer is secured by means of a non-peel seal type connection. As a result, the sheet material of the packing, a bag for example, need not be formed of a peel seal weldable material. | ||||||
| 28 | Corner-forming unit of a carton container-forming machine | US274851 | 1988-11-22 | US4908009A | 1990-03-13 | Yoshimitsu Yokoyama |
| 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 material into the H-shaped guide to form the corners of the material from which individual filled rectangular packages will be formed. | ||||||
| 29 | Draw tape bag forming method and apparatus | US158418 | 1988-02-22 | US4881933A | 1989-11-21 | Robert J. Wech |
| A draw tape bag is formed from a plastic web. An edge folding unit, a notching unit, a tape inserting unit, a heat sealing unit and a web folding unit form a compact continuous line in a rectangular path. The hem folder includes a L-shaped plate within the hem to receive a draw tape. The plate is pivotally mounted the tape within the hem. A wheel is rotatably and pivotally mounted for pulling the hem onto the plate. A single strap on a roll has a width equal to both tapes. The roll is driven and the strap passes over a knife to sever the strap from the tapes. A tension control roll is coupled to moving the strap and controls the strap feed to hold a constant tape tension. A folding board includes spaced edge channels in a V-shape for folding the flat web. An air layer is interposed between the web and the folding channels to provide a low friction movement. A bag making machine includes a presealer to form tape edge seals, a cooler for cooling the tape hems and an edge sealer and cutting unit to form the side edges of the bag. | ||||||
| 30 | Method and apparatus for manufacturing plastic film bag with special flap arrangement | US163288 | 1988-03-01 | US4881932A | 1989-11-21 | Eli Blatt |
| Apparatus and methods are provided for manufacturing plastic film bags with two-piece flaps. A slitting tool slits the flap portion of a longitudinally displaced film strip arrangement and a spacing tool displaces one of the resulting sections to form a gap. Thereafter, an adhesive hearing tape is applied to bridge the gap and connect the separated sections. After this, a cutting tool cuts notches into the two-piece flap portion which is lifted for this purpose by a Teflon-coated template having a slot to receive the cutting tool. The template has a channel system to enable blowing away the cut out portion. The separate bags are formed by sealing and severing at a position to intersect the notches. The method of the invention involves cutting the notches into the flap section to delineate separate flaps and associated bags in a time frame which follows the folding of the flap section over the main body of the bag. Also the method of the invention comprises loading the goods into the bag through an open end with the mouth of the bag being closed by the associated flap. Thereafter, when access to the goods is desired, the flap may be opened to open the associated mouth, the previously open end which is loading the bag having been closed by heat sealing to some other suitable technique. | ||||||
| 31 | Method and arrangement for producing bags, sacks or similar objects of a thermoplastic synthetic plastic foil web, and objects produced thereby | US24374 | 1987-03-10 | US4781471A | 1988-11-01 | Karl-Heinz Sengewald |
| In accordance with a method and an arrangement for producing bags, sacks or similar objects, and in a synthetic plastic material for its production, a plurality of printing marks are arranged on a supporting foil, and then the supporting foil is attached to the synthetic plastic material, for example by gluing. | ||||||
| 32 | Method of and means for making reclosable bag material, and material produced thereby | US797989 | 1985-11-14 | US4666536A | 1987-05-19 | Donald Van Erden; Donald W. Noren |
| A method of and apparatus for making, and the resulting material for fabricating reclosable bags and in which a length of web of predetermined width of bag material as wound on a mandrel has fastener strip sections joined to and across the width of the web. The web is adapted to travel continuously spirally about the mandrel. The fastener carrying web may be folded longitudinally and resiliently flexible profiles of the folded fastener strip sections separably joined. Ends of the fastener strips before, and after, folding may be flow melted and fusedly flattened. Ends of the fastener strips may be aligned with a fold juncture of an underturned flange of the web and the margin then unfolded to extend beyond the strip ends. | ||||||
| 33 | Apparatus for making plastic carrier bags | US656999 | 1984-10-02 | US4605392A | 1986-08-12 | Fritz Achelpohl; Friedhelm Mundus; Wilfried Ebmeyer |
| In an apparatus for making plastics carrier bags from a web of tubular film of thermoplastic material, a feeding mechanism intermittently conveys the webs by one bag width and a severing mechanism cuts the web into half tubes along an undulating curve. A carriage displaceable in the machine frame transversely to the feeding direction of the web is reciprocated by a drive derived from a first rotating control cam through gearing. A cutting knife pivotable in the carriage about its longitudinal axis passes through the plane of the tube about an axis perpendicular thereto and is so controlled by an oscillating drive derived from a second rotating control cam that its edge is substantially tangential to the undulating curve at the cutting point. A detour assembly retards one of the half tubes to bring the bag side edge zones into phase and each half tube is formed into bags by a transverse sever-sealing device. | ||||||
| 34 | Tuck assembly for a pocket file folder line | US556928 | 1983-12-01 | US4557715A | 1985-12-10 | Daniel T. Robinson |
| A tuck assembly for automatically inverting the gussets of a pocket file folder as the file folder is moved through a cutting and folding line, the assembly includes a tuck section having a plurality of a V-type tuck rolls of decreasing depth for opening the folded gusset, a guide section for supporting the edges of the file folder pocket and a compression section for folding the open gusset into the edge of the pocket. | ||||||
| 35 | Manufacture of plastic bags having drawstrings | US73286 | 1979-09-07 | US4547237A | 1985-10-15 | Thomas C. Hendrickson |
| A drawstring is mounted near the open mouth of a plastic bag by a pressure sensitive tape that freely laterally encloses the drawstring except for projecting free ends, the tape being formed or treated so as to be non-sticky with respect to the drawstring. A high speed production method of making the bags comprises the steps of laying a continuous length of drawstring material across a series of spaced bags, applying strips of pressure sensitive tape to each bag to freely laterally enclose the drawstring length there and severing the drawstring length between bags. | ||||||
| 36 | Apparatus for sealing a lamina onto a plastic bag | US251964 | 1981-04-07 | US4398990A | 1983-08-16 | Heinz Kuhni; Peter Schwaninger |
| Aluminum laminae are heat-sealed onto the inside of flat-bottomed plastic bags so that, by bending the lamina double after the bag has been cut open to remove part of its contents, the bag can be reclosed. The apparatus for sealing the laminae on can be incorporated in an existing bag-filling installation. An aluminum strip is supplied to a punching device from a supply roll. A punched-out aluminum lamina is placed upon the upper part of a conveyor lever. The lever is rotated through 180.degree. so that the aluminum lamina to be sealed on comes to be positioned between two layers of a web of plastic material fed by rollers. The ends of the lever are preheated by heating elements in order to accelerate the sealing-on operation. The aluminum lamina is heat-sealed onto the inside of the folded web in such a way that the longer edges of the lamina form an angle of about 45.degree. with the flat bottom of the bag. The rate of production of the existing filling installation can be maintained despite incorporation of the sealing-on apparatus. | ||||||
| 37 | Rotary bag sealing and perforating machine | US174164 | 1980-07-31 | US4333790A | 1982-06-08 | Helmut T. Schaffron |
| A web of flattened, tubular, heat-sealable bag material travels above and at the speed of a moving belt. Above the belt is a seal shaft which rotates a heated seal bar. The working edge of the seal bar may be adjusted inward and outward relative to its shaft. The edge causes a transverse seal to be made on the web at intervals. A rotary perforating knife is driven at the same speed as the seal shaft and, at a subsequent station, perforates the web proximate the seal. The linear speed of the edge of the seal bar is at the speed of the belt at the time of sealing contact (about 65.degree.). The speed of the seal shaft for the remaining 295.degree. is adjustable and thereby the distance between seals and perforations is adjustable. | ||||||
| 38 | Apparatus for producing bags of plastics material | US56891 | 1979-07-12 | US4288279A | 1981-09-08 | Peter D. Blore; David S. Wheatley |
| Apparatus for producing a bag of plastics material having an opening closable by a flap which is provided with a band of adhesive for securing the flap to the bag after closing of the opening, the band of adhesive being covered by a releasable strip of plastics material. The apparatus includes a reel holder for rotatably supporting a reel of the releasable strip, a first guide for feeding the strip in succession passed an adhesive applicator for applying a band of adhesive to one side of the strip, a second guide for guiding a continuous length of folded plastics material for forming the bag to heat a severing mechanism which operates to sever separate bags from the continuous length of material and also fuse together the edges of each separated bag, a pressure mechanism situated to apply the strip to the continuous length of material so that the strip is secured by the band of adhesive to the continuous length of material before it is fed to the severing mechanism, and a reel holder including a table rotatable about a vertical axis and arranged to support the reel horizontally. A brake mechanism is provided for restraining the rotation of the table so that the strip is tensioned as it is pulled off the reel. | ||||||
| 39 | Method for making reclosable bags | US919823 | 1978-06-28 | US4235653A | 1980-11-25 | Steven Ausnit |
| A thin wall extruded flexible web is provided with laterally spaced longitudinally extending complementary resiliently flexible interlocking fastener profiles having an imperforate gusset forming web area therebetween which is collapsibly folded into a gusset extending in one direction away from the profiles. Portions of the plastic web are folded into free terminal digitally manipulatable bag mouth pull flanges projecting to a suitable length in the opposite direction from the profiles, with the remainder of the plastic web being collapsed toward the gusset into bag forming side wall panels and extending to a substantially greater length than the gusset for providing a substantial bag pouch into which the gusset projects only a limited extent, with the fastener profiles being then secured together into interlocking but releasable fastener relation. Several embodiments of the method are disclosed. Apparatus for practicing the method is disclosed. | ||||||
| 40 | Plastic bag machine | US598775 | 1975-07-24 | US4011978A | 1977-03-15 | Hans Lehmacher; Heinz-Eugen Kluppel; Karl Dreckmann |
| High production rates and decreased wear and tear and stress on parts are obtained in a bag fabrication machine with the web fed intermittently by respective bag lengths, for operations such as perforating, transverse severing or welding with the web halted.A sector plate is oscillated between two extreme positions faster in one direction than in the other by a flywheel-carried crank pin orbiting about an axis eccentric from the plate axis; the pin engaging a block sliding in the plate radially of its axis. The plate motion is applied as input to an electrically operated clutch and brake unit and the output is applied to web advance rolls. Switches on the slide block, actuated at the extreme sector positions, control the alternating clutch and brake engagement to drive the rolls for web feed during the slower sector motion of relatively longer duration; and also declutching with braking to halt the web precisely, for and during a faster sector plate return motion. Web feed length, hence bag length, is selected by adjustment of the crank pin orbit radius. | ||||||
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