| 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 | Continuous envelope system | US565552 | 1975-04-07 | US3980006A | 1976-09-14 | Archibald H. Welch |
| A continuous envelope system for attaching generally conventional paper envelopes to a paper carrier sheet with spots of adhesive adjacent the outer edge of the envelope sealing flap and adjacent the upper edge of the envelope back panel and employing a detacher for subsequently detaching the envelopes from the paper carrier sheet as they are conveyed through the detacher by gradually separating the carrier sheet from the envelopes to form connecting tears therebetween and by severing the connecting tears at the envelopes with the teeth of a severance blade to detach the envelopes without forming unacceptable blemishes thereon. | ||||||
| 42 | Method of making a band of plastic bags | US510684 | 1974-09-30 | US3960062A | 1976-06-01 | Arnoldus Willem Jan Leloux |
| A band of bags of plastic material connected with each other by perforation lines. In the two end parts of each perforation line the number of perforations and/or the width of the perforations per unit of width is greater than in the central part of the perforation line. A device for manufacturing said band of bags comprises a perforating member with equidistantly spaced first perforating pins and second perforating pins are present on either side of a central area between the first perforating pins. | ||||||
| 43 | Tri-fold side seamed plastic produce bag and method for making same | US14263794 | 2014-04-28 | US09725211B2 | 2017-08-08 | 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. | ||||||
| 44 | TRI-FOLD SIDE SEAMED PLASTIC PRODUCE BAG, METHOD AND APPARATUS FOR MAKING SAME | US13101946 | 2011-05-05 | US20110206302A1 | 2011-08-25 | Greg Tan |
| A trifold side seamed plastic produce bag includes a front wall and a taller back wall, first and second side edges sealed together and a seamless bag bottom. The taller back wall provides means for finding the bag opening. 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 and apparatus for producing the bags includes a slitter that removes a strip of plastic from only the top layer of the bag stream to form an extended flap on each bag. The method includes manufacturing the bags and winding them onto cores or forming the bags into coreless rolls. | ||||||
| 45 | Tri-fold side seamed plastic produce bag, method and apparatus for making same | US11829017 | 2007-07-26 | US07963898B2 | 2011-06-21 | Greg Tan |
| A trifold side seamed plastic produce bag includes a front wall and a taller back wall, first and second side edges sealed together and a seamless bag bottom. The taller back wall provides means for finding the bag opening. 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 and apparatus for producing the bags includes a slitter that removes a strip of plastic from only the top layer of the bag stream to form an extended flap on each bag. The method includes manufacturing the bags and winding them onto cores or forming the bags into coreless rolls. | ||||||
| 46 | TRI-FOLD SIDE SEAMED PLASTIC PRODUCE BAG, METHOD AND APPARATUS FOR MAKING SAME | US11829017 | 2007-07-26 | US20090028471A1 | 2009-01-29 | Greg Tan |
| A trifold side seamed plastic produce bag includes a front wall and a taller back wall, first and second side edges sealed together and a seamless bag bottom. The taller back wall provides means for finding the bag opening. 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 and apparatus for producing the bags includes a slitter that removes a strip of plastic from only the top layer of the bag stream to form an extended flap on each bag. The method includes manufacturing the bags and winding them onto cores or forming the bags into coreless rolls. | ||||||
| 47 | Bag and method of making the same | US597365 | 1996-02-08 | US5952025A | 1999-09-14 | Gilbert N. Yannuzzi, Jr. |
| A bag suitable for use in microwave cooking is constructed of an elongated tube of flexible material closed at one end by a cold seal closure and having a heat seal adhesive deposit applied to the other end thereof for use in closing the bag after filling thereof to form a package. In another embodiment, a package suitable for use in microwave cooking is constructed of an elongated tube of flexible material closed at one end by a cold seal closure and having a cold seal adhesive deposit applied to the other end thereof for use in closing the bag after filling thereof. Methods for making bags and packages including methods for making rolls from which bags and packages may be made. | ||||||
| 48 | Bag and method of making the same | US301853 | 1994-09-07 | US5814382A | 1998-09-29 | Gilbert N. Yannuzzi, Jr. |
| A bag suitable for use in microwave cooking is constructed of an elongated tube of flexible material closed at one end by means of a cold seal closure and having a heat seal adhesive deposit applied to the other end thereof for use in closing the bag after filling thereof; and methods of making the same are described, including the making of a roll from which said bags can be made. | ||||||
| 49 | Bag filling machine | US231515 | 1988-08-12 | US4835948A | 1989-06-06 | Brian Humphrey |
| A chain of bags is disclosed, with each having first and second panels and gusseted sides, each established by first and second gusset panels. The chain of bags is provided with a transverse bottom seal which in the central portion seals together the front and rear panels, and also seals together the inner portion of the gusset panels as well as the front and rear panels for four thicknesses being sealed. At the outer portions, there are only two thicknesses sealed together, namely, the front gusset panels are sealed to the front panel and the rear gusset panels are sealed to the rear panel. This establishes a chain of bags which may be supplied to a bag filling machine whereat conveyor belts form a nip and grip only the outer portion of the rear gusset panels where attached to the rear panel. By this means, the bags of a chain may readily be opened to practically full capacity and then filled. When the bag is closed awnd sealed, it forms a rectangular bag with square ends which may readily by palletized to form a secure and stable pallet load. | ||||||
| 50 | Part bottom seal of chain of gusseted bags and machine therefor | US835722 | 1986-03-03 | US4764030A | 1988-08-16 | Brian Humphrey |
| A chain of bags is disclosed, with each having first and second panels and gusseted sides. The chain of bags is provided with a transverse bottom seal which in the central portion seals together the front and rear panels, and also seals together the inner portion of the gussets as well as the front and rear panels for four thicknesses being sealed. At the outer portions, there are only two thicknesses sealed together, namely, the front gussets are sealed to the front panel and the rear gussets are sealed to the rear panel. This establishes a chain of bags which may be supplied to a bag filling machine whereat conveyor belts form a nip and grip only the outer portion of the rear gussets where attached to the rear panel. By this means, the bags of a chain may readily be opened to practically full capacity and then filled. When the bag is closed and sealed, it forms a rectangular bag with square ends which may readily be palletized to form a secure and stable pallet load. | ||||||
| 51 | Method and apparatus for fabricating continuous envelopes | US856791 | 1986-04-28 | US4726804A | 1988-02-23 | Robert S. Stitcher |
| A method and apparatus for fabricating continuous envelopes for use in connection with electronic data processing printers or the like is disclosed. The method and apparatus includes the steps of severing an advancing web along longitudinally spaced-apart transverse lines to provide straight completely severed segments and a non-severed medial segment. In a distinct step, the web is severed along non-linear lines adjacent to the transverse lines, with each non-linear line including a severed longitudinal segment and a severed bridging segment which extends in an oblique direction between the transverse line and the outer end of the associated longitudinal segment to provide a generally triangular cut-out which, when both are removed, yields an envelope backing panel having a tapered closure flap. Rectangular patch portions are then adhered to the formed envelope backing panels, and wherein a second continuous web is advanced and severed along alternating first and second lines to produce alternating envelope patch portions and scrap portions. The resulting patch portions are advanced, without interruption, and accurately applied to the advancing backing panels. | ||||||
| 52 | Maintaining single link chain bags against skewing | US823640 | 1986-01-29 | US4694959A | 1987-09-22 | Steven Ausnit; Per Bentsen |
| Bags in a series have first and second end portions with the bags being separated from one another except for links that connect the first end portions of the bags into a continuous chain, which is wound upon itself on a storage reel. Such winding may be in a vertical spiral fashion, or it may be by engagement by a separable continuous strip, such as a ribbon tape across the second end portions of the bags as reeled upon a core, thereby maintaining the bags in the chain substantially free from skewing relative to one another. Method and apparatus for effecting the reeling of the bag chain are also disclosed. | ||||||
| 53 | Carrier sheet assembly including continuously overlapped envelopes and letter heads | US701732 | 1985-02-14 | US4624408A | 1986-11-25 | 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. | ||||||
| 54 | Square ended bag | US618513 | 1984-06-08 | US4524459A | 1985-06-18 | Oliver R. Titchenal |
| Open mouth square ended bags are formed from a tube-like band and in a chain with the back wall and top end of each bag partially sealed together from each side wall to provide an open mouth therebetween. Each bag in turn may be filled through the mouth located between the back wall and top end, the bag expanding forwardly from the back wall by expanding gussets in the top and bottom ends. | ||||||
| 55 | Apparatus for producing continuous bags of thin wall material | US314205 | 1981-10-23 | US4500307A | 1985-02-19 | Danial N. P. Bridgeman |
| An apparatus and method for production of continuous bags of thin material with each of the bags having an opening on the side is disclosed. | ||||||
| 56 | Method for orderly transport and storage of flat objects and a plastic bag suitable therefor | US276949 | 1981-06-24 | US4354335A | 1982-10-19 | 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. | ||||||
| 57 | Tear resistant separable end-connected bags | US70883 | 1979-08-29 | US4285681A | 1981-08-25 | Charles R. Walitalo; Alvin E. Ericson |
| Continuous strip closed-bottom open-mouthed packaging bags are produced by continually making, at spaced intervals in a continuous flattened tubular oriented plastic film supply, a transversely extending heat seal to define a bag bottom, and, adjacent each heat seal, perforating the two plies of the film supply with a blade heated to effect annealing of the edges of the perforations and having a serrated cutting edge with spaced deep recesses to define connecting tabs between perforations. | ||||||
| 58 | Apparatus for manufacturing plastic bags in a continuous way | US776795 | 1977-03-11 | US4089729A | 1978-05-16 | Arnoldus Willem Jan Leloux |
| Plastic bags are obtained from a tubular foil of thermoplastics by means of heatsealing. The heatsealing member acts upon a lower wall of the flattened non-tensioned tubular foil, and without a counter pressure to the upper wall of the foil. The entire thickness of the lower wall is plasticized but only a portion of the thickness of the upper wall is plasticized. The assembly of heated lower wall and partly heated upper wall facing each other is passed through two pressure rolls, the roller surface contacting the surface which has not been in contact with the heat sealing member consisting of metal is cooled. | ||||||
| 59 | Universal bag-making machine | US667205 | 1976-03-15 | US4068566A | 1978-01-17 | Richard L. Joice |
| The web in the bag-making machine is continuously advanced from the web letoff to the takeup. At the operations station of the machine where operations take place on the web, the web is momentarily held stationary for operating thereon. A pair of swinging web control arms take up web at the entrance end of the station and let off web at the exit end during the moment at which the web is stationary. Operations take place when the web is stationary. Adjustments control length of time the web is stationary. Sealing and perforating operations are selectable. | ||||||
| 60 | Method of manufacturing plastic bags in a continuous way | US640133 | 1975-12-12 | US4030956A | 1977-06-21 | Arnoldus Willem Jan Leloux |
| Plastic bags are obtained from a tubular foil of thermoplastics by means of heatsealing. The heatsealing member acts upon a lower wall of the flattened non-tensioned tubular foil, and without a counter pressure to the upper wall of the foil. The entire thickness of the lower wall is plasticized but only a portion of the thickness of the upper wall is plasticized. The assembly of heated lower wall and partly heated upper wall facing each other is passed through two pressure rolls, the roller surface contacting the surface which has not been in contact with the heat sealing member consisting of metal is cooled. | ||||||
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