| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Web of interconnected bags | US470982 | 1990-01-26 | US5077957A | 1992-01-07 | Fritz Brinkmann |
| A method for manufacturing a web of interconnected bags from a semitubular web of material, in which pockets are formed at a first side of the web and a second side of the web adjacent a first of two longitudinal outer edges of the web. At least one continuous strip is inserted into the pockets before separation of the bags. The strips are cut to predetermined lengths, and their ends are fastened together. The web is welded together along transverse lines substantially perpendicular to the pockets for producing one bag at a time, which is conveyed transversely substantially perpendicular to the direction motion of the web. The pockets project at one of the two sides of the web beyond the pockets on the other side of the web substantially perpendicular to the direction of motion of the web. Each bag is welded and conveyed substantially perpendicular to the direction of motion of the web. | ||||||
| 122 | Method and apparatus for the sequential handling of flexible products | US286205 | 1988-12-19 | US5014978A | 1991-05-14 | David A. Smith; Herb Geiger |
| The present invention provides an improved apparatus and method for the sequential handling of a series of flexible products which enables operation of the orbital packing fingers at lower speeds to reduce inertial loading and yet maintain a high output rate. In preferred embodiments of the invention, the packing fingers are operated at a rate of 1/X times the rate that flexible products are provided. Where X is the number of delivery points per lane of flexible products provided. The orbital packing fingers themselves are constructed to extend across substantially the entire width of the bags as they are stripped from a transfer drum and to decelerate the bags as they are stacked against a backstop. | ||||||
| 123 | Method and device for joining foil hoses | US324316 | 1989-03-16 | US5009632A | 1991-04-23 | Bernhard Kruessel |
| 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 is laid exactly on the superimposed transverse welds [(22) ] of the two hose parts. This results in a joining of the hose ends that does not use adhesive tape and observes the pitch determined by the length of the bags. The invention provides a joining that is practically imperceptible and does not at all impair the quality of the bags made. In particular, the occurrence of single bags that would have to be considered as waste is avoided. The method is applicable for cutting out imperfections from a foil hose, as well as for connecting the beginning of one hose roll to the end of the preceding hose roll. | ||||||
| 124 | Method for manufacturing film rolls | US360927 | 1989-03-22 | US4994128A | 1991-02-19 | Isao Toshima |
| A roll film (1) rolled around a winding core (2), having resin made fastener claws (3) and (4) of an engagement tool along with both edges of the film. The claws are melt-bonded to the film. The film (1) is wound in a serpentine manner relative to the winding core (2). This roll film may be incorporated into an automatic bag producing and filling machine without any intricate operation. When the roll film is paid off, it is possible to smoothly supply the film at a constant speed and to form a fastener claw provided bag with a high efficiency. | ||||||
| 125 | Plastic bag and method and apparatus of manufacture | US38234 | 1987-06-12 | US4943167A | 1990-07-24 | Edward Gelbard |
| Disclosed is a bag including a front wall and a rear wall and having an open mouth portion in which the front wall and rear wall are joined by pleated portions or gussets. The bag is manufactured so that a longitudinal, thermally welded seam is placed inside a portion of at least one of the gussets at a point other than the central fold. The bag preferably includes handles which are integral extensions of the front and rear walls and the gussets. The bag manufactured according to the principles of the present invention thus eliminates or minimizes failure of thermally welded seams.Also disclosed is a method for manufacturing the bags and an apparatus for manufacturing the bags. | ||||||
| 126 | Shopping bags of thermoplastic synthetic resin sheeting with lateral weld seams, and process for the production thereof | US228593 | 1988-08-05 | US4911561A | 1990-03-27 | Robert Wagner |
| A shopping bag of thermoplastic synthetic resin sheeting with lateral weld seams wherein, at the bag opening, the front wall is fashioned with a straight rim, and the rear wall is fashioned to project beyond the front wall with an approximately sinusoidal rim to form a protruding flap. The sinusoidal rim of the rear wall terminates either above or below the rim of the front wall in the lateral weld seams. A process for the production of the shopping bags by sinusoidal cutting apart of a film ply of a tubular sheet involves a series of sequential operation at successive stages or stations. | ||||||
| 127 | Method and apparatus for the manufacture of plastic bags in pairs with side seams | US176453 | 1988-04-01 | US4906228A | 1990-03-06 | Hans Reifenhauser; Robert Wagner |
| The invention relates to a process and apparatus for the paired manufacture of carry bags from synthetic resin sheeting with lateral weld seams and an approximately sinusoidal load-bearing rim with punched-in handle openings, wherein a laid-flat tubular film is cut open in wave shape, and the two cut-apart semitubular sheets (1a, 1b) are pulled apart transversely to the conveying direction, the wave crests are folded over at least in part in parallel to the folding edges (3) in each case either toward the outside or toward the inside, then the semitubular sheets are again united in order to compensate for at least a portion of the gap S produced by folding over the flaps, and after achieving a synchronous run of the folded over flaps (51, 52), the latter are welded to the lower and upper sheet layers (10a, 10b) of the semitubular sheets (1a, 1b) in the area (15) surrounding the subsequent handle opening (4), the wave crests, prior to being folded over, being electrically discharged and, after having been folded over, being again charged electrically prior to the provision of the weld bond. | ||||||
| 128 | Process for making single side free plastic bag | US115318 | 1987-11-02 | US4883450A | 1989-11-28 | Gordon L. Benoit |
| The present invention is a method of continuously making thermoplastic film bags having one-side-free for separation from an opposite side. The method includes providing a continuous tube of thermoplastic film for formation of the bag, such tube having a continuous surface which forms opposing sides of the bags. The tube is directed to a bag forming means which continuously flattens the tube into at least the opposing sides of the bag. The tube must intermittently be partially severed on one of the opposing sides at intervals corresponding to single bag lengths, such severance being made at a location for providing detachable separation of the one wall from the opposing wall. Next a sealed seam is formed across the tube at intervals which provide bottoms to each of the bags, and the bags are then collected in a stack where they are substantially aligned followed by fusing the stack of substantially aligned bags adjacent the severance in the one side for separating the bags from stack one side at a time. | ||||||
| 129 | Apparatus for forming a flexible tubing from a single-ply or multi-ply web | US122297 | 1987-11-18 | US4871347A | 1989-10-03 | Friedheim Brinkmeier |
| 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 and are movably mounted in the machine frame (1, 2, 3) and have receiving end portions about which the web is deflected to raise edge portions of the web which are to be infolded to overlap each other. The plates are adjustable by a screw (34) or the like to control the distance between their receiving end portions. The plates are provided at their delivery end portions with straps (17) or the like for controlling the distance between the plates. In order to permit after a change of size a simple adjustment of the size even when the apparatus is in operation, each of the two straps or arms (17) has a free end portion, which is longitudinally slidably guided relative to the machine frame (1, 2, 3) by guides (27, 28) and fixed in position relative to the machine frame. | ||||||
| 130 | Method and apparatus for continuous production of bags from thermoplastic film | US103998 | 1987-10-01 | US4867735A | 1989-09-19 | Donald E. Wogelius |
| A method and apparatus are provided for continuous fabrication of bags from a longitudinally advanced multi-layer thermoplastic film web fed tangentially onto a rotating drum for carrying out transverse web seam welding and severing, the principal novel feature being provision of preliminary heating carried out across at least part of the width of web at which the final seam and sever is to take place. The preliminary heating step is advantageous where the thickness of film layers to be sealed and severed is not uniform across the width of the web or in which the uniform thickness of the film layers is such that seaming and severing in a single step requires an undesirably long time for continuous high speed production. The method can be adapted for production of bags of different widths. | ||||||
| 131 | Method and equipment for the production and packaging operation of a continuous manufacture of small bags with longitudinal folds and transversal pre-incisions and manufacture thus packaged | US140147 | 1987-12-30 | US4846349A | 1989-07-11 | Gianfranco Galimberti |
| In a method for the production and packaging of a continuous strip of small bags each formed with two longitudinal folds and with transverse welds and transverse pre-incisions, the continuous manufacture is longitudinally folded after the formation of the welds and the pre-incisions defining adjacent single small bags, is die-cut to form the handles and then is wound up as a reel. | ||||||
| 132 | Process and apparatus for making plastic carrying bags or sacks | US899697 | 1986-08-22 | US4838977A | 1989-06-13 | Wilfried Ebmeyer; Fritz Achelpohl; Friedhelm Mundus |
| To make plastic carrying bags or sacks, sections are cut or are severed by hot wire welding from a gusseted tubular film by a formation of transverse seam welds and transverse severing cuts or by hot wire-welded transverse seam welds. At least in their bottom portion the sections are provided with corner seam welds, which are separately formed in the two folds and which diverge obliquely from the outer fold lines toward the top and/or bottom seam weld and terminate short of the inner fold line and merge into the latter. To prevent in the making of the carrying bags an elongation of the intermediate portion of the tubular film, the latter is initially formed with corner seam welds only in one fold of each of the two gussets before the transverse seam welds and transverse severing cuts or hot wire-welded transverse seam welds are formed. When said corner seam welds have cooled, congruent corner seam welds are formed in the respective other folds. | ||||||
| 133 | 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. | ||||||
| 134 | Method for the manufacture of plastic bags with welded side seams | US71324 | 1987-07-09 | US4811418A | 1989-03-07 | Hans Reifenhauser |
| A process for the production of carry bags from synthetic resin film with lateral seams made by cutoff welding and with an approximately sinusoidal load-bearing rim with punched-in handle openings, involves a series of steps wherein a tubular film of double width and laid flat is cut open along its center in a wave shape with crests and troughs for the paired production of two sets of bags, and, along the cutting edges, turned-over rims are folded parallel to the folding edges, in each case either toward the outside or toward the inside, and the turned-over rims are welded (usually by heat bonding) at least partially to the lower end upper sheet layers of resulting semitubular lengths from the inside or outside, i.e. at least in a region surrounding the handle opening to be punched out subsequently. | ||||||
| 135 | Method and apparatus for manufacturing mailing envelopes or bags | US38550 | 1987-04-15 | US4789350A | 1988-12-06 | Karl-Heinz Honsel |
| In the inventive method mailing bags are manufactured in an appropriately constructed flat- and lateral folding back machine. A tube fabricated from a web is provided in the region of its longitudinal borders with two triangularly-shaped and punched cut-outs, through which there are defined subsequent separating lines for separating individual tubular pieces from the tube. One or an upper panel of the tube is obtained by two separating cuts spaced parallel from, and at a distance from one another, while the lower panel is obtained by a separating cut positioned between the afore-described separating cuts for the upper panel. The bottom closure and the closure cap of the mailing bag are formed by these cuts. | ||||||
| 136 | Pouch with slotted suspension means | US3920 | 1987-01-16 | US4779996A | 1988-10-25 | Karl-Heinz Sengewald |
| A pouch comprises an upper wall, a lower wall, each of the walls having two longitudinal edges, a bottom edge and a top edge, elements for connecting the walls with one another so as to connect the side edges and the bottom edge of one of the walls with the side edges and the bottom edge of the other of the walls and to retain the top edges not connected with one another to form a filling opening, and elements for suspending the pouch and including at least one suspension opening and at least one slot provided in one of the walls and forming a bridge therebetween, and at least one suspension opening and at least one slot provided in the other of the side walls and directly communicating the one suspension opening with the top edge of the other of side walls. | ||||||
| 137 | Apparatus for the manufacture of block-sealed side-gussetted bags | US942605 | 1986-12-17 | US4767391A | 1988-08-30 | Harold A. Jensen |
| Bags are manufactured from a tubular web of thermoplastic film. An air injector periodically inflates the film whereupon it contacts cooperating vacuum plates. One of the plates has a cutting die which cuts a tab in the film which in turn provides an ingress for the injected air. The film is then sealed and severed to form the bags, which are then formed into a block. The tab then serves as an opening to facilitate the removal of individual bags from the block. | ||||||
| 138 | Former for form, fill and seal packaging machine | US902038 | 1986-08-25 | US4710157A | 1987-12-01 | John Posey |
| A form, fill and seal apparatus for producing flexible containers having fitments located at one end of the container. The invention provides a former for folding into a tubular shape a substantially flat web of film with attached fitments. The former includes a substantially V-shaped member, an elongated member secured to the V-shaped member, and a U-shaped member. The V-shaped member, elongated member, the U-shaped member cooperate to fold the substantially flat web of film to bring opposite longitudinal portions thereof into aligned relationship. | ||||||
| 139 | Thermoplastic bag machine | US928742 | 1986-11-10 | US4702731A | 1987-10-27 | Emiel Y. Lambrecht; William Van Der Gucht |
| Disclosed is a mechanism, associated with a thermoplastic bag making machine, for preparing a strip of thermoplastic to produce bags having the upper edges of the bag mouth formed in a sinusodial shape such that the peak of such shape is substantially equi-distant relative to the side edges of the bag. While the disclosed bag machine is of the type that advances the web strip incrementally, shaping of the web strip in the sinusodial shape occurs while a portion of the web strip is advanced at substantially constant velocity. A mechanism is provided for maintaining constant tension in the web despite the constant and intermittent feeding of the web. | ||||||
| 140 | Food pouch with integral collar | US656608 | 1984-10-01 | US4635291A | 1987-01-06 | Lewis Barton |
| A flexible pouch which includes a sealed product-containing pocket, and which pouch also incorporates integral collar-forming structure adapted to enable the pouch to be suspended from an object, such as a bottle neck or the like. | ||||||
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