| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Composite endless form for making flexible, windowed, form, fill and seal bags | US348967 | 1994-11-28 | US5465842A | 1995-11-14 | Wayne S. Utley |
| A composite endless form for making flexible, windowed, form, fill and seal bags includes an endless strip of flexible, substantially opaque, paper-like material having a print side thereon with printed indicia thereon and an adhesive side, opposite the print side, with an adhesive thereon. The endless strip of paper-like material includes individual bag forms attached side-to-side thereon, each to be used for making a windowed bag, the endless-strip of paper-like material having a window opening cut in each individual bag form. The window openings are oblong and extend diagonal to a direction of elongation of the composite endless form. A heat-sealable film is adhered to the endless-strip of paper-like material on the adhesive side thereof to cover substantially all of the adhesive side. The composite endless form is placed in a roll to be fed to form, fill and seal machines for making windowed bags. | ||||||
| 42 | Process for making windowed form, fill and seal bags | US230512 | 1994-04-20 | US5410857A | 1995-05-02 | Wayne S. Utley |
| A process for making windowed form, fill and seal bags (70) for containing perishable and/or nonperishable goods involves linearly conveying an endless strip of paper-like material (12) through an adhesive application station (14) which applies adhesive to an adhesive side (18) of the endless strip of paper-like material throughout, with the exception of a window area (34) on each individual bag form (36a, b, c, etc.) making up the endless strip. The endless strip is then conveyed through a synchronized window-blanking station (44) which cuts a window blank (54) from each window area so as to form a window opening (50) therein. The adhesive side is then adhered to a transparent plastic heat-sealable film (58). Side edge margins (32) are slit from the endless strip of paper material to leave a composite endless form (10) for, in turn, making the flexible windowed, form, fill and seal bags (70) for containing perishable and/or nonperishable goods. To make these bags, the individual bag forms (36a, b, c, etc.) are cut from the composite endless form material and folded so that the heat-sealable film (58) is in contact with itself at overlapping edges of the bag form and these edges are then heat-sealed together. | ||||||
| 43 | Method for the preparation of cylindrical members for paper containers | US149694 | 1993-11-09 | US5385527A | 1995-01-31 | Toru Fukada; Shigeichi Ishihara |
| The present invention is directed to a method for preparing cylindrical members for paper containers having a thermoplastic resin layer as the innermost layer by cylindrically forming a preform sheet made up of a laminate comprising at least a paper layer and the thermoplastic resin layer, the laminate is arranged so that the thermoplastic layer becomes the innermost layer of the paper containers and is selected from the group consisting of polyesters and ethylene/vinyl alcohol copolymers. The method includes the steps of folding the innermost layer along one edge of the preform sheet back over itself, irradiating the folded edge and another edge of the preform sheet both of which are made of the thermoplastic resin layer of polyesters or ethylene/vinyl alcohol copolymers using a carbon dioxide gas laser irradiation, thereby softening or melting the thermoplastic resin layer, overlapping the irradiated edges, and pressing the overlapped portion to seal the thermoplastic resin layers together. | ||||||
| 44 | Bone-in food packaging article and use field of the invention | US184334 | 1994-01-21 | US5376394A | 1994-12-27 | Vincent J. Dudenhoeffer; Jeffrey M. Schuetz |
| A method for shrink packaging bone-in food masses such as meat cuts is disclosed, A patch bag comprising a thin-walled heat shrinkable thermoplastic film bag and a thick-walled non-heat shrinkable thermoplastic film patch having its inner surface bonded to the bag outer surface is used. Both surfaces have high energy as the sole bonding means and the patch-bag bond strength increases during heat shrinking around the meat mass such that the bag portion adhered to the patch shrinks less than the rest of the bag. | ||||||
| 45 | Perforated plastic bag for packaging fruits or vegetables | US936575 | 1992-08-27 | US5226735A | 1993-07-13 | Daniel Beliveau |
| A bag, for packaging fruits or vegetables, is made of opaque, flexible plastic sheet material. The rear wall of the bag is however provided with a tranversal window made of transparent, flexible plastic sheet material, extending over the width of the bag and comprising a plurality of perforations distributed over its surface. The transparent plastic sheet material is thicker than the opaque plastic sheet material; it requires additional mechanical resistance due to the perforations. A method and apparatus fabricate the plastic bag from two strips of opaque plastic sheet material, and a strip of transparent plastic sheet material. In accordance with this method, the three strips are placed side by side with the transparent strip in the center; the adjacent borders of the strips are heat welded together to convert the three strips to a single band; this band is folded to form a two-layer band; and this two-layer band is tranversely cut at longitudinally spaced apart locations thereof with the two layers heat welded on both sides of each cut. | ||||||
| 46 | Stand-up plastic bag and method of making same | US171053 | 1988-03-21 | US4837849A | 1989-06-06 | Laurence R. Erickson; R. Douglas Behr; Roger D. Vrooman |
| A stand-up plastic bag has a pair of front and rear side walls defining an open bag mouth at upper edges thereof, and a pair of front and rear bottom gusset walls being disposed between the side walls. The walls are composed of a multi-layered film of different, heat-sealable, coextruded thermoplastics, such as polyethylene and Nylon. Polyethylene is on the interior surfaces and Nylon is on the exterior surfaces of the walls. The gusset walls have upper portions interconnected together to form a bottom wall extending between the front and rear side walls. The gusset walls also have lower portions joined by heat seals to lower portions of the front and rear side walls at contiguous portions of polyethylene material on their interior surfaces to form a support band which connects to and extends below the bottom wall. The front and rear gusset walls also have opposite longitudinal edges joined together by heat seals at contiguous portions of Nylon material on the exterior surfaces thereof which complete formation of the support band as a continuous self-standing structure that defines with the bottom wall a stand-up base on the bag. | ||||||
| 47 | Process for manufacturing sacks, bags, and the like | US140234 | 1987-12-31 | US4818328A | 1989-04-04 | Toshiya Hara |
| In a process for manufacturing sacks of sheet material, flat tubes are fed one by one in the direction perpendicular to the discharging direction thereof, while the tubes are overlapped or shingled as offset by a predetermined distance. The tubes are wound one by one on a reel core with the help of a tape, which is connected at one end thereof to the reel core and continuously supplied with the rotation of the reel core. The tubes are secured on the reel core outside pressure supplied by the tape to form a tube wound reel having a desired diameter. After a certain time period and immediately before the susequent bottom-closing process, the tubes are unwound from the reel core by pulling the tape to rotate the reel. The overlapped tubes are then separated from each other and supplied one by one to a bottom-closing station. | ||||||
| 48 | Foil package and method for producing same | US931748 | 1986-10-13 | US4784083A | 1988-11-15 | Hans R. Kiel |
| A composite foil package for a pourable material such as cat litter having an outer hull and inner lining sealed to provide an interior space to retain the pourable material. The hull and lining are provided with perforations to permit, when the perforations are parted, the folding out of the outer hull and inner lining to expose the pourable material. | ||||||
| 49 | Isothermic package | US887836 | 1986-08-26 | US4755064A | 1988-07-05 | Jean-Pierre Weber |
| The isothermic package is comprised of a flat and flexible envelope (10) of which the two walls (11, 12) are welded along three sides so as to provide an opening (13) for introducing and withdrawing the product (P) to be kept warm or cold during its transportation. The walls (11, 12) are each comprised of two isothermic sheets (14, 15) which delimit therebetween a spaced (16, 17, 18) filled with a gas having a low heat transmission power. | ||||||
| 50 | Method for making a puncture resistant bag | US908953 | 1986-09-17 | US4704101A | 1987-11-03 | Henry G. Schirmer |
| A seamless, puncture resistant bag is made by advancing a lay-flat seamless tube of thermoplastic film; forming an alternating series of fused-unfused segments along said lay-flat tube by internally fusing said lay-flat tube at regular intervals, the unfused segment length being approximately equal to the fused segment length; treating the external surface of the lay-flat tube to render said surface self adherent; periodically folding back the lay-flat tube towards its treated surface at the juncture between the leading fused-unfused segments of the lay-flat tube; pressing the folded portion of the lay-flat tube; and severing the folded portion from the tube. | ||||||
| 51 | Method and apparatus for manufacturing folding paper sacks | US628184 | 1984-07-06 | US4634414A | 1987-01-06 | Bernd Hollmann |
| A method of manufacturing folding paper sacks, especially gusseted sacks, wherein each sack is shaped out of a tubular section separated from a single- or multiple-layer tubular web and closed at both ends with folded bottoms is characterized in that each tubular section continues to be conveyed uninterruptedly parallel to the direction of travel of the tubular web once it has been separated from the tubular web and the forward and/or rear ends of the tubular sections are shaped during the continuous pass by prefolding and crimping over and by the application of adhesive to the folded bottom, transversely to the direction C of travel, and accordingly sealed. The machine for carrying out the method is characterized by, first, an initial folder with a transverse adhesive applicator for the rear end of the tubular section downstream of a deflection roller that is in turn downstream of the tube-forming station and, second, by another folder with another transverse adhesive applicator for the forward end of the tubular section, with both folders and both adhesive applicators operating transversely with respect to the direction of travel and positioned one following another in the direction of travel. | ||||||
| 52 | Apparatus for making multi-walled plastic bags | US589855 | 1984-03-16 | US4551125A | 1985-11-05 | Francesco Pezzana; Cesare Quacquarella |
| A plurality of multi-walled bags of flexible plastic material is formed by taking a longitudinally folded flat web of a first flexible plastic film; at least partially separating the superposed plies of said first flexible plastic film at the edge opposite the fold line and moving the film past a corona discharge electrode between the separated plies of the film to pre-treat at least a part of the inwardly facing surface of each of said two plies; taking a longitudinally folded flat web of a second flexible plastic film; corona discharge-treating the outwardly facing surfaces of the two plies of said second flexible plastic film; passing the pre-treated web of said second flexible plastic film over a diverter guide into the space between the two at least partially separated plies of said first flexible plastic film to bring the fold lines of the first and second flexible plastic film webs substantially into register with the two webs moving synchronously in a single direction; and sealing the composite of the two folded webs at a sealing station, along spaced transverse seal lines to form a plurality of open-ended bags having the bottom of each bag defined by the registered fold lines of the two webs and the mouth region of the bag defined at the web margin opposite the said fold line. The bags may be either wound up in a roll without severing or severed from one another and then stacked or attached to feed tapes in a imbricated way. | ||||||
| 53 | Multi-walled plastics bag | US310586 | 1981-10-13 | US4481669A | 1984-11-06 | Francesco Pezzana; Cesare Quacquarella |
| A plurality of multi-walled bags of flexible plastic material is formed by taking a longitudinally folded flat web of a first flexible plastic film; at least partially separating the superposed plies of said first flexible plastic film at the edge opposite the fold line and moving the film past a corona discharge electrode between the separated plies of the film to pre-treat at least a part of the inwardly facing surface of each of said two plies; taking a longitudinally folded flat web of a second flexible plastic film; corona discharge-treating the outwardly facing surfaces of the two plies of said second flexible plastic film; passing the pre-treated web of said second flexible plastic film over a diverter guide into the space between the two at least partially separated plies of said first flexible plastic film to bring the fold lines of the first and second flexible plastic film webs substantially into register with the two webs moving synchronously in a single direction; and sealing the composite of the two folded webs at a sealing station, along spaced transverse seal lines to form a plurality of open-ended bags having the bottom of each bag defined by the registered fold lines of the two webs and the mouth region of the bag defined at the web margin opposite the said fold line. The bags may be either wound up in a roll without severing or severed from one another and then stacked or attached to feed tapes in an imbricated way. | ||||||
| 54 | Reinforced container for bulk material | US178715 | 1980-08-18 | US4340379A | 1982-07-20 | Robert R. Williamson |
| A reinforced receptacle for bulk materials is constructed from a two-ply plastic tube having a reinforced sheet wrapped and overlapped about the two-ply plastic tube. The reinforced sheet is adhesively secured to the two-ply tube, and the lower end of the two-ply tube is folded and adhesively secured together to form a folded satchel bottom for the receptacle. The upper end of the two-ply tube is gathered and clamped to provide structure for lifting the receptacle. | ||||||
| 55 | Method and apparatus for making cushioned shipping bags | US12288 | 1979-02-15 | US4253892A | 1981-03-03 | Joseph J. D'Angelo; Lawrence S. Maccherone |
| Method and apparatus are described for making cushioned shipping packet bags. A pocket within the cushioned bag is defined between two resilient, lightweight, flexible cushioning layers of polypropylene microfoam material which advantageously exhibits a relatively "non-slip" frictional gripping action on the item or items contained within the sealed packet bag. The cushioned bag is produced on a continuous motion machine having capability for adjusting the length and width of the cushioned bags produced. Two packages can be simultaneously produced end-to-end when their combined lengths do not exceed the overall width of the machine. To enable the protective outer kraft paper layers of the bag to be sealed together in spite of the intervening polypropylene material, this material is burned away from between the outer layers during the heat sealing of a polyethylene coating on the inner surfaces of the kraft paper enclosure by heat energy conducted through the kraft paper. | ||||||
| 56 | Labelled fabric, a method and an arrangement for making a labelled fabric | US007408 | 1979-01-29 | US4253383A | 1981-03-03 | Manfred Noe |
| A labelled fabric includes a wide-mesh fabric having two opposite surfaces, a first web which is guided against one of the opposite surfaces of the wide-mesh fabric and a second web which is guided against the other of the opposite surfaces of the wide-mesh fabric. The second web is provided with labelling indicia. The first and second webs are bonded to one another through the interstices of the wide-mesh fabric. | ||||||
| 57 | Process of manufacturing laminated web | US874794 | 1978-02-03 | US4231832A | 1980-11-04 | Roy J. Weikert |
| The gas and light barrier properties of a web of thermoplastic bags designed for aseptic packaging are improved by laminating a material of high gas and light imperviousness, such as metal foil, to the thermoplastic bag material during a blown film extrusion process. In one embodiment a pair of foil laminates are applied to opposite sides of the inflated length of a blown tube between the extruder and a first pair of nip rolls, with the laminates being pressed into opposite sides of the inflated tube by rollers which flatten the tube at their points of contact to provide flat surfaces for the laminates being applied to the tube. The resulting laminated web has a pair of aligned, uncovered strips running the length of the web along which a slit-seal is made to provide a pair of webs each having a layer of foil or other material laminated to all but one longitudinal edge thereof. In another embodiment a single sheet of foil is applied to a tube of film using, for example, a conventional tube former, with the foil wrapping less than the full circumference of the tube to provide a single web having an uncovered section running longitudinally thereof. | ||||||
| 58 | Moisture proof bags provided with blow-in ports and method of manufacturing the same | US811444 | 1977-06-29 | US4132347A | 1979-01-02 | Akio Saito |
| A bag adapted to be packed with cement or the like by blowing it into the bag through a foldable blow-in port comprises an outer layer of synthetic resin which is impervious to air and moisture and an inner layer of paper bonded to the outer layer by a layer of bonding agent. The surface of the layer of the bonding agent facing the paper layer is provided with a plurality of longitudinal grooves which act as exhaust passages for discharging the air blown into the bag. | ||||||
| 59 | Shipping bag | US625698 | 1975-10-24 | US4087002A | 1978-05-02 | John D. Bambara; Dennis Knaus |
| An improved cushioned shipping bag is disclosed, together with a unique method of continuously making the bags. The improved bag protects objects from being damaged when they are transported, shipped, handled or sent in the mail. A continuous layer of foamed plastic sheet material is positioned on and affixed (laminated) to a continuous layer of relatively thin sheet material. The laminated layers are then folded with the foamed plastic sheet material positioned on the inside; the folded laminated layers are subsequently heat sealed, glued or the like together at predetermined positions along the continuous laminate. The cushioned bag blanks subsequently are cut from the continuous laminate. In this manner, three sides of the objects to be shipped. The open end of the bag is provided with a foldable flap which is used to seal the bag after the objects are placed inside it. | ||||||
| 60 | Bulk bag or liner and method of making it | US249396 | 1999-02-12 | US6139482A | 2000-10-31 | Lee Lafleur |
| A method of making flexible and collapsible bulk bags or liners for bulk bags or containers from individual flat panels of material, or tubes of material folded flat, is disclosed. The bags or liners have one or more sidewalls interconnected by at least a bottom wall and preferably also a top wall generally opposed to the bottom wall. The bags are preferably formed by disposing a pair of inner blanks of material with one on top of the other and then heat sealing along a straight line generally bisecting the blanks and thereafter severing the heat seal along its entire length. Next, a pair of outer blanks of material are disposed adjacent the inner blanks with the inner blanks received between the outer blanks. The outer blanks are each heat sealed about their side edges to an adjacent side edge of an inner blank. Once so formed, the inner blanks form a pair of gusseted panels received between the outer and overlying panels. When expanded, this configuration provides four generally rectilinear sidewalls of the bulk bag. To form the bottom wall of the bulk bag, the outer blanks are heat sealed to the adjacent gusseted, inner blanks along canted lines forming a triangular portion integral with each sidewall. When heat sealed in this manner, a generally rectangular bottom wall, integral with the sidewalls, is formed. A top wall may be formed in a similar manner or separately attached to the bag. | ||||||
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