| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | METHOD FOR MAKING TRI-FOLD SIDE SEAMED PLASTIC PRODUCE BAG | US15499908 | 2017-04-28 | US20170297775A1 | 2017-10-19 | Greg Tan |
| A trifold side seamed film produce bag includes a front wall and a back wall, first and second side edges sealed together and a seamless bag bottom. The bag is joined at the side edges to additional bags by a perforation. The bag is corona treated on at least one wall and promotional material is printed on the treated surface. The bags are folded to one third of their height to fit compact bag roll dispensers. The bags are folded in a Z-fold or C-fold configuration. The method includes manufacturing the bags and winding them onto cores or forming the bags into coreless rolls. An apparatus for forming the side seamed bags includes an extruder, a tubing flattener, a perforator, a sealer, a corona treater, a printer and a slitter. The treated, printed bags may be stored on rolls for later slitting into two bag streams and folding into thirds. | ||||||
| 2 | TRI-FOLD SIDE SEAMED PLASTIC PRODUCE BAG AND METHOD FOR MAKING SAME | US14263794 | 2014-04-28 | US20140270593A1 | 2014-09-18 | Greg Tan |
| A trifold side seamed film produce bag includes a front wall and a back wall, first and second side edges sealed together and a seamless bag bottom. The bag is joined at the side edges to additional bags by a perforation. The bag is corona treated on at least one wall and promotional material is printed on the treated surface. The bags are folded to one third of their height to fit compact bag roll dispensers. The bags are folded in a Z-fold or C-fold configuration. The method includes manufacturing the bags and winding them onto cores or forming the bags into coreless rolls. An apparatus for forming the side seamed bags includes an extruder, a tubing flattener, a perforator, a sealer, a corona treater, a printer and a slitter. The treated, printed bags may be stored on rolls for later slitting into two bag streams and folding into thirds. | ||||||
| 3 | Zippered film and bag | US294957 | 1999-04-20 | US6019512A | 2000-02-01 | James W. Yeager |
| Reclosable bags, plastic film for making the bags, and a method and apparatus for making the bags are disclosed. The bag has a reclosable fastener (26) connected to a single wall of the bag, and the film (55) has a reclosable fastener (26) connected to one side thereof which does not require attachment to any other portion of the film (55) when making a bag. The fastener (26) has a tamper-proof member attached thereto to indicate if the bag has been previously opened. The film (55) can be wound into a roll (54) suitable for use on conventional bag making machines including form, fill, and seal machines or a chain of coilable reclosable bags can be produced therefrom since the fasteners (26) are connected to the web preferably transversely to the bags longitudinal formation axis. The method and apparatus for making the film (55) includes supplying a continuous web of bag making material, feeding from a coil of continuous fastener material enough fastener material to make a single fastener, (26) positioning, cutting, and attaching the fastener (26) to the film (55), with a plurality of fasteners (26) attached thereon. | ||||||
| 4 | Bags and method of making bags | US454374 | 1995-06-06 | US5957824A | 1999-09-28 | Bernard Lerner; William M. Cronauer |
| Methods of making a container strip in the form of a chain of interconnected preopened bags with openings preferably having longitudinal dimensions of at least about 1/64 inch is disclosed. The container strip provides greatly enhanced facility for bag registration and opening during packaging operations utilizing the improved container strip. Processes of forming a chain of preopened bags are also disclosed. Face and back plastic webs are fed along individual paths of travel to a common path. In one embodiment the webs are differentially tensioned while in their independent paths by stretching the face web more than the back web such that the face web will retract longitudinally more than the back web upon release of the web tension. While so tensioned edge seals are formed between the webs to convert the webs into a tube and longitudinally spaced transverse seals are formed between the webs to delineate bottoms of bags. Transverse lines of weakness are formed in the back web to facilitate separation of bags from the remainder of the web during a subsequent use. Tension in individual bag sections of the face web is released by forming longitudinally spaced transverse separations of the sections and thereby producing a space between each contiguous pair of sections. In other embodiments pairs of transverse lines of severance are formed in a front section of the webs and parts between the lines of severance are removed to form the novel bags without the need for differential stretching. | ||||||
| 5 | Recloseable bag assembly and method of making same | US749789 | 1996-11-15 | US5951453A | 1999-09-14 | James W. Yeager |
| A package in the form of a recloseable bag includes a bag body including front and back walls, and a profile strip fastener assembly sealingly mounted on the inside surface of the front wall. The profile strip fastener assembly includes a pair of releasably interlocking profile strips. One of the profile strips is connected to the inside of the front wall of the bag, while the other one of the profile strips includes a flange portion which extends from the profile strips to and adjacent end seal of the bag. A method of forming recloseable bags is disclosed, which method can be employed with a form, fill, and seal machine for effecting the efficient packaging of products in recloseable bags. | ||||||
| 6 | Continuous roll of plastic bags | US59436 | 1998-04-09 | US5921390A | 1999-07-13 | Ebrahim Simhaee |
| A multi-ply plastic bag from a continuous strip of bags on a roll is supplied to a user with the top of the bag partially opened. A tear line between the bottom of a leading bag and a top of a subsequent bag separates the individual bags. A broad slit centrally located in the tear line passes through all but one ply of the strip of bags. The bag dispenser has an upwardly projecting tongue which engages the slit in the tear line when a user draws a bag from the dispenser. The tongue impedes the subsequent bag from moving forward. The adjacent bags separate along the tear line. The ply which does not have a slit rides over the tongue and pulls apart the plies at the opening of the subsequent bag before the leading bag completely separates from the subsequent bag. | ||||||
| 7 | Packaging material, apparatus and method | US155730 | 1993-11-22 | US5915555A | 1999-06-29 | Joseph F. Ball |
| A coil of an interconnected chain of open bags is provided in which the coil has a center opening having a diameter at least as great as the transverse dimension of the bags. A dispenser is provided on which a coil of bags is mounted. An end of the chain is pulled from the center opening and fed around a tapered mandrel and thence over a feed control mandrel oriented in angular relationship with the tapered mandrel. The web is then fed to a bagging machine for dispensing, loading and closing of the bags. The table on which the coil is mounted is rotatable so that the orientation of a span of bags running from the coil to the tapered mandrel remains substantially constant as the web is fed. | ||||||
| 8 | Zippered bag and film | US957304 | 1997-10-23 | US5902047A | 1999-05-11 | James W. Yeager |
| Reclosable bags, plastic film for making the bags, and a method and apparatus for making the bags are disclosed. The bag has a reclosable fastener connected to a single wall of the bag, and the film has a reclosable fastener connected to one side thereof which does not require attachment to any other portion of the film when making a bag. The fastener has a tamper-proof member attached thereto to indicate if the bag has been previously opened. The film can be wound into roll suitable for use on conventional bag making machines including form, fill, and seal machines or a chain of coilable reclosable bags can be produced therefrom since the fasteners are connected to the web preferably transversely to the bags longitudinal formation axis. The method and apparatus for making the film includes supplying a continuous web of bag making material, feeding from a coil of continuous fastener material enough fastener material to make a single fastener, and positioning, cutting, and attaching the fastener to the film, with a plurality of fasteners attached thereon. | ||||||
| 9 | Maintaining perforation phasing | US151439 | 1993-11-12 | US5447486A | 1995-09-05 | Danford C. Anderson; Peter J. Hatchell; Emiel Lambrecht; Eric DeSmedt |
| In an apparatus for making plastic bags or the like from a continuous film of material comprising a sealing drum having at least one seal bar for imparting transverse seals to the film at regularly spaced intervals and a perforator having a rotatable perforator blade for imparting transverse perforations to the film at regularly spaced intervals, the film comprising print marks appearing thereon at regularly spaced intervals, an apparatus and method are disclosed for tracking the positions of each print mark and each perforation and comparing the difference between these positions to a desired difference and thereafter adjusting the angular position of the perforator blade until the difference between the positions of each print mark and each perforation is equal to the desired difference to thereby maintain a desired spacing between each print mark and each perforation. | ||||||
| 10 | Packaging material, apparatus and method | US95954 | 1993-07-22 | US5426918A | 1995-06-27 | Joseph F. Ball |
| A coil of an interconnected chain of open bags is provided in which the coil has a center opening having a diameter at least as great as the transverse dimension of the bags. A dispenser is provided on which a coil of bags is mounted. An end of the chain is pulled from the center opening and fed around a tapered mandrel and thence over a feed control mandrel oriented in angular relationship with the tapered mandrel. The web is then fed to a bagging machine for dispensing, loading and closing of the bags. The table on which the coil is mounted is rotatable so that the orientation of a span of bags running from the coil to the tapered mandrel remains substantially constant as the web is fed. | ||||||
| 11 | Web dispensing apparatus | US846593 | 1992-03-05 | US5301889A | 1994-04-12 | Joseph F. Ball |
| A coil of an interconnected chain of open bags is provided in which the coil has a center opening having a diameter at least as great as the transverse dimension of the bags. A dispenser is provided on which a coil of bags is mounted. An end of the chain is pulled from the center opening and fed around a tapered mandrel and thence over a feed control mandrel oriented in angular relationship with the tapered mandrel. The web is then fed to a bagging machine for dispensing, loading and closing of the bags. The table on which the coil is mounted is rotatable so that the orientation of a span of bags running from the coil to the tapered mandrel remains substantially constant as the web is fed. | ||||||
| 12 | Method and apparatus for producing bags interconnected at their open ends | US843414 | 1992-02-27 | US5226858A | 1993-07-13 | Michael Snowdon |
| A method and apparatus for producing bags interconnected at their open ends by forming transverse seals across a flattened longitudinal tube of film material and utilizing a cutting die to cut a transverse weakened line across the tube intermediate the transverse seals and to cut a pair of handle openings, one on each side of the transverse weakened line. | ||||||
| 13 | Method of affixing envelopes and letterheads to a carrier sheet and assembly formed thereby | US449519 | 1982-12-13 | US4514182A | 1985-04-30 | H. Richard VerMehren |
| Envelopes and letter sheets are mounted on a continuous carrier in such a manner that they alternate and are continuously shingled. The envelope flaps are first affixed to the carrier sheet, with the envelopes in an open position and with their flap folds adjacent and parallel to infolds between carrier sheet panels. The letter sheets are then affixed to the same panels, with the free end of each sheet extending across both an outfold and the next infold. When the carrier sheet is fanfolded, each envelope closes over the top margin of the following letter sheet, and the lower margin of each letter sheet extends across the upper margin of the following envelope. | ||||||
| 14 | Apparatus for orderly transport and storage of flat objects | US389584 | 1982-06-18 | US4435944A | 1984-03-13 | Alfons Meyer |
| In order to provide for the secure and orderly storage of flat objects on a carrier web, in particular unfilled plastic bags on a plastic carrier web, the invention provides a method and an apparatus for the sequential delivery of preformed plastic bags having a unilaterally extending attachment flap. The bags are delivered onto a moving carrier web also made of plastic film. Various alignment and positioning devices place the plastic bags seriatim on the carrier web while a heat-welding mechanism attaches the flap of each bag to the carrier web in a predetermined region. A tear line or perforation line permits subsequent removal of the bag from the web while the flap remains attached thereto. The apparatus includes power sources for the cyclic actuation of the alignment and welding mechanism in synchronism with the speed of delivery of the bags to and from the machine. The apparatus also includes a reciprocating storage container permitting the zig-zag layered stacking of the web with the attached bags. | ||||||
| 15 | Faulty window construction detecting apparatus | US827479 | 1977-08-25 | US4137528A | 1979-01-30 | John E. Traise |
| A tri-level output sensor senses faulty window construction in a web of continuous business forms of stationery, for controlling visual and audible indicators, including a display of the relative position of the faulty sensed window construction, within a continually fanfolding end stack. Pulsing circuitry drives tri-level-to-digital processing circuitry, conjointly providing referencing information to process the sensor output and timing information to sample the processing circuitry, and drives a pair of counters for fanfold position indication and consecutive-fault-occurrence determination, dependent on the processing output. | ||||||
| 16 | Method of making a continuous envelope | US786228 | 1977-04-11 | US4102251A | 1978-07-25 | Donald J. Steidinger |
| A method of making continuous envelope structure wherein a continuous ply ultimately constituting the backs of a series of envelopes has united thereto a plurality of ply segments, each ply segment ultimately constituting the front and flap of an envelope in the series, and wherein at least a major portion of the flap of each ply segment overlies the front of an adjacent ply segment, and wherein each ply segment and the continuous ply are transversely perforated after assembly. | ||||||
| 17 | Continuous business form or the like adapted for subsequent processing into original indicia bearing lottery tickets, envelopes or the like | US619511 | 1975-10-03 | US4039122A | 1977-08-02 | Edward L. Johnsen |
| A continuous business form which includes a series of connected blanks adapted to be subsequently processed into multi-ply lottery tickets, envelopes or like articles, is produced from an endless web of sheet material. Each blank is developed from an odd number of continuous panels which span the width of the web wherein adjacent, non-abutting panels define the various plies of each article, and wherein one surface of certain of the nonabutting panels is provided with an adhesive which is not activated for adhering to other panels of the form until after original indicia has been applied to the non-abutting panels which are thereafter superposed in overlying relationship for producing the continuous series of multi-ply forms wherein each ply contains original, directly applied indicia. | ||||||
| 18 | Apparatus for producing a package of imbricated bags | US582099 | 1975-05-30 | US4003782A | 1977-01-18 | Walter M. Farrelly |
| An apparatus is disclosed for receiving bags from a source thereof and applying them, in an imbricated manner, to two lines of pressure sensitive adhesive coated tape. The source normally being a bag making machine of the intermittant type wherein the delivery motion is provided by a crank arm providing, during 180.degree. of its cycle, a feeding or drive motion and during the remaining 180.degree. of its cycle, a dwell time. The apparatus in general comprises a transport system carried by a frame which system is driven in periodic synchronization with such a machine supplying the bags. An individual bag is transported from the source to a taping mechanism located at the end of the system. The taping mechanism secures the individual bags to the tapes during the dwell period of movement of the transport system to form a package. The package of imbricated bags can be festooned in a carton or wound on a roll. The taping mechanism can also be pivoted such that the individual bags clear the mechanism and are stacked unattached to the tapes. If the bags are of the type wherein both ends are closed, a mechanism is also provided for applying a spot of glue adjacent one end of each bag to facilitate its opening for subsequent use. | ||||||
| 19 | Method of making envelope assembly | US587990 | 1975-06-18 | US3988971A | 1976-11-02 | Donald J. Steidinger |
| A method of making a mail piece construction including a series of interconnected envelope assemblies wherein each assembly includes a panel, the major portion of which constitutes the envelope front and flap and wherein a smaller discrete back is secured on three sides to the envelope front to provide a removable strip whereby the assembly is useful as a return envelope. | ||||||
| 20 | Plastic bags, rolls of plastic bags, and tubular blown film processes of making the same | US14294353 | 2014-06-03 | US09469442B2 | 2016-10-18 | Brian C. Dais; Jose Porchia; Juan M. Garces |
| Plastic bags, rolls of plastic bags, and tubular blown film processes for making rolls of plastic bags. The rolls of plastic bags include a tubular blown film with a plurality of perforation lines along which plastic bags are separated from the roll. The perforation lines are formed so that portions of the lips of the plastic bags are offset from each other. The offset portions of the lips facilitate opening of the bags. | ||||||
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