US20100122436A1 - Closure and band of connected closures - Google Patents
Closure and band of connected closures Download PDFInfo
- Publication number
- US20100122436A1 US20100122436A1 US12/450,978 US45097808A US2010122436A1 US 20100122436 A1 US20100122436 A1 US 20100122436A1 US 45097808 A US45097808 A US 45097808A US 2010122436 A1 US2010122436 A1 US 2010122436A1
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- United States
- Prior art keywords
- closure
- paper
- layer
- closures
- synthetic resin
- Prior art date
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- Abandoned
Links
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- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/1616—Elements constricting the neck of the bag
- B65D33/1625—Small plates or the like made of one piece and presenting slits or a central aperture to jam the neck of the bag
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/10—Container closures formed after filling
- B65D77/16—Container closures formed after filling by collapsing and twisting mouth portion
- B65D77/18—Container closures formed after filling by collapsing and twisting mouth portion and securing by a deformable clip or binder
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/15—Bag fasteners
- Y10T24/153—Plastic band bag tie
Definitions
- the present invention relates to a closure for closing and binding the neck of a bag containing food, agricultural products or the like, and to a band of connected closures that are connected directly to one another.
- Patent Document 1 Patent Document 1
- Patent Document 2 Patent Document 2
- Patent Document 3 Patent Document 4
- Patent Document 5 Patent Document 5
- Patent Document 4 discloses a sheet consisting of an elastic synthetic resin material such as polypropylene, polyethylene, polyvinyl chloride, nylon or the like (see Patent Document 4, paragraph [0006]).
- fragments When such a closure has connection parts, fragments may break off when the closure is detached, and may cause contamination. This can also cause burr, which has been known to damage the hands.
- the material used in the present invention is thick paper or paperboard, which is gentler on the hands of the user (consumer), and which may also reduce environmental load when the paper is made of plant material. Using thick paper also allows for the use of recycled pulp. It is also possible to inhibit the occurrence of fragments when a band of connected closures is cut apart.
- Continuous closing machines are generally used for the actual closing, and the closures used in this case are in the form of a band of connected closures connected in a line.
- Such a band of connected closures connected in a line is rolled and loaded into a compartment in the closing machine, and the closures are fed one by one from the compartment during closing.
- the closures being fed from the machine are detached at roughly the same time as they are clipped around an object to be closed.
- connection parts need to be strong enough that they do not break even if pull force is applied in the feed direction of the closures, but must also be easy to detach when closing an object to be closed.
- Patent Document 1 Japanese Patent Application Laid-open No. 2001-80654
- Patent Document 2 Japanese Patent Application Laid-open No. 2000-179510
- Patent Document 3 Japanese Patent Application Laid-open No. 2001-2092
- Patent Document 4 Japanese Patent Application Laid-open No. H10-59334
- Patent Document 5 Japanese Patent Application Laid-open No. S57-96954
- Another object is to provide a closure that is made moisture-resistant by lamination of synthetic resin and/or biodegradable resin, giving it excellent storability and machine operability in a continuous closing machine.
- Another object is to provide a closure whereby occurrence of paper dust can be suppressed by laminating a synthetic resin and/or biodegradable resin.
- Still another object is to provide a closure that has a smaller environmental impact than conventional closures.
- the present invention is a closure having a closing function and reclosability, which is formed of a single paper layer or a composite layer having at least a layer formed of paper, and which has a closure hole, provided substantially in a center part, for closing an object to be closed, and which is further formed with, at one end, an opening smaller than the closure hole, the opening communicating with the closure hole.
- the raw material of the layer of paper that forms the principal layer of the present invention is plant fiber cellulose acetate or the like. Colorants; sizing agents, clay and other fillers can also be added thereto.
- closure having a closing function and reclosability according to (1) above, having, on side faces of the closure, detachable connection parts that are connected to other closures adjacent thereto that are in a line with the closure, when the closure and the other closures are formed as a band of connected closures.
- closure is formed of a composite layer having at least a layer formed of paper, and wherein at least one of layer or layers other than the paper layer is formed from synthetic resin and/or biodegradable resin.
- Synthetic resin here means a synthetic polymer substance such as a thermoplastic resin or thermosetting resin.
- examples include polyvinyl chloride, polystyrene, polypropylene, polyethylene, methacrylic resin, polycarbonate, polyamide, phenol resin, unsaturated polyester resin; alkyd resin, epoxy resin and the like.
- a biodegradable resin is a resin containing mainly biodegradable materials, which decompose by the action of microorganisms.
- raw materials that are biodegradable include biodegradable resins having plant-derived components and biodegradable resins having petroleum-derived components.
- a mixture of a biodegradable resin having plant-derived components with a biodegradable resin having petroleum-derived components may also be used.
- plant-derived components include polylactic acid, polycaprolactam, polyvinyl alcohol, casein, glycerin fatty acid esters, soft polylactic acid compounds compounded from polylactic acid and palm oil containing glycerin fatty acid esters, polylactic acid/diol-dicarboxylic acid copolymer, starch-polyester resin and the like.
- Starch-polyester resin does not undergo blocking when molded and worked into a film, and also has a blocking-prevention effect when blended with other resins, as well as having good welding properties, printing properties and durability.
- Examples of petroleum-derived components include PET (polyethylene terephthalate) and a polybutylene adipate/terephthalate copolymer resin which is an aliphatic-aromatic copolyester resin having a structure based on module units consisting of terephthalic acid/butanediol adipic acid.
- a closure with low environmental impact can be provided by means of a composite layer that combines a paper layer with a layer mainly made of a biodegradable resin.
- Examples of the oriented film here include uniaxially oriented films and biaxially oriented films. This is a polyethylene or other polymer material that has been physically stretched in order to improve the strength and heat resistance of the film. Uniaxially oriented films have the property of being difficult to stretch in either the vertical or horizontal direction. Biaxially oriented films are materials that are difficult to stretch both vertically or horizontally.
- the resin layer here may be a single layer or a composite of two or more layers.
- the layers of synthetic resin and/or biodegradable resin in this case may be each a single layer or a composite of two or more layers.
- the layer of synthetic resin and/or biodegradable resin is formed from any one of olefin resin, polyethylene terephthalate (PET), polystyrene (PS), acrylonitrile (AN) and PVA (polyvinyl alcohol).
- the weight per unit area of the paper is less than 400 g/m 2 , it will not be strong enough to function properly as a closure, while if the weight exceeds 1000 g/m 2 the narrow opening will be difficult to open, and may not be sufficiently reclosable.
- the average of the fiber lengths making up the paper is less than 1.0 mm, it will not maintain sufficient stiffness to function as a closure, while if the fiber lengths exceed 4.0 mm, the connection part will be difficult to sever.
- a band of connected closures formed by connecting the closures according to any one of (2) to (12) above in a line by means of the adjacent connection parts of the closures.
- the effect of providing a closure that is resistant to the influences of humidity changes while having excellent machine operability in a continuous closing machine is achieved by laminating a synthetic resin and/or biodegradable resin.
- the effect of suppressing the occurrence of paper dust is also achieved by laminating a synthetic resin and/or biodegradable resin.
- Another effect is to provide a closure that has less of an environmental impact than conventional closures.
- FIG. 1 is a plane view showing a closure of an embodiment according to the present invention.
- FIG. 1 only illustrates an embodiment of a closure of the present invention, and the form of the present invention is not limited thereby.
- the closure 1 of this embodiment is formed of a composite layer having one layer of thick paper. As shown in FIG. 1 , the closure 1 of this embodiment has closure hole 2 , roughly in the center of the plane view, for closing a bag or other object to be closed. An opening 3 , which communicates with and is smaller than closure hole 2 , is formed at one end of the closure.
- the closure also has detachable connection parts 4 , 4 . . . on the side faces, which connect the closure in a line to other adjacent closures when the closure and the other closures are connected as a band of connected closures.
- FIG. 2 shows cross-sections along line II-II in FIG. 1 illustrating the layered structure of the closure 1 of this embodiment.
- the layered structures shown here are illustrative, and the layered structure of the present invention is not limited thereby.
- the closure 1 shown in FIG. 2( a ) has a three-layer structure comprising paper ( 11 ), synthetic resin ( 12 ) and paper ( 13 ) in that order from the top.
- the synthetic resin here is preferably polyethylene terephthalate or polyethylene.
- the closure 1 shown in FIG. 2( b ) has a three-layer structure comprising synthetic resin ( 14 ), paper ( 15 ) and synthetic resin ( 16 ) from top to bottom.
- the closure 1 shown in FIG. 2( c ) has a five-layer structure comprising polyethylene terephthalate ( 17 ), polyethylene ( 18 ), paper ( 19 ), polyethylene ( 20 ) and polyethylene terephthalate ( 21 ) from top to bottom.
- FIG. 2( d ) has a four-layer structure comprising polyethylene terephthalate ( 22 ), polyethylene ( 23 ), paper ( 24 ) and polyethylene terephthalate ( 25 ) from top to bottom.
- the closure 1 shown in FIG. 2( e ) has a two-layer structure comprising polyethylene terephthalate ( 26 ) and paper ( 27 ) from top to bottom.
- the closure 1 shown in FIG. 2( f ) has a three-layer structure comprising polyethylene terephthalate ( 28 ), polyethylene ( 29 ) and paper ( 30 ) from top to bottom.
- FIG. 2( g ) is a cross-section of a closure with a single-layered structure of paper ( 30 ).
- the paper material and synthetic resin material can be layered together by melting and solidifying the synthetic resin material on the surface of the paper material, or by first preparing the paper material and synthetic resin material separately and then sticking them together with an adhesive.
- FIG. 3 is a plane view showing one example of a band of connected closures of an embodiment of the present invention.
- closures formed of a composite layer having one layer of thick paper are attached together.
- Closure holes for closing a bag or other object to be closed are provided roughly in the center of closures, 31 , 31 . . . of this embodiment in the plane view. An opening smaller than the closure hole and communicating with the closure hole is formed at one end of the closure.
- Each closure also has detachable connection parts 34 , 34 . . . on the side faces for connecting the closure to other adjacent closures in a line when they are connected in a band of connected closures.
- a band 36 of connected closures of this embodiment is formed with the aforementioned connection parts 34 , 34 formed on the side faces of closures 31 connected to each other in a line. Notches 35 , 35 . . . are formed extending towards the inner layer on the surfaces of the connection parts of each closure.
- closure samples nine pieces of grey-colored paperboard (MARICOAT made by Hokuetsu Paper Mills, Ltd.) were prepared as closure samples (single-layer samples).
- closure samples were prepared with the five-layer structure shown in FIG. 2( c ) and they had a laminated structure of PET/PE/grey-colored paperboard (paper)/PE/PET.
- the paper and PE were bonded by melting the polyethylene.
- the PE and PET (biaxial orientation) were laminated using an ether adhesive.
- the polyethylene terephthalate layer was 12 ⁇ m thick and the polyethylene layer was 60 ⁇ m thick.
- the aforementioned closure samples were each cut into strips 2 mm wide by 100 mm long, which were modified under the following conditions.
- Table 2 below shows the evaluation results of Table 1 as percentages given the results for the “no fold” sample under each type of storage conditions as 100.
- paper has the property of becoming hard and fragile when left under dry conditions. Under moist conditions, it becomes soft. That is, under dry conditions it becomes strong with respect to tension but weak with respect to bending. Under moist conditions, on the other hand, it becomes weak with respect to tension but resists crease formation when folded, with little change in breakability.
- a composite layer closure sample is more resistant to bending stress than a paper single-layer sample due to the layering of a highly flexible synthetic resin. Because the synthetic resin is also resistant to the influences of moisture, moreover, a composite layer closure sample is also much stronger than a single-layer closure sample.
- Example 1 The same grey-colored paperboard (MARICOAT made by Hokuetsu Paper Mills, Ltd.) used in Example 1 was prepared.
- FIG. 4 is a graph showing the relationship between pulled distance and tensile strength of a single-layer sample (paper).
- FIG. 5 is a graph showing the relationship between pulled distance and tensile strength of polyethylene resin.
- FIG. 6 is a graph showing the relationship between pulled distance and tensile strength of a composite layer.
- FIG. 7 is a graph showing the relationship between pulled distance and tensile strength of a composite layer of paper and polyethylene synthetic resin.
- FIG. 8 is a graph showing the relationship between pulled distance and tensile strength of a composite layer of paper and synthetic resin.
- the single-layer sample exhibited maximum strength when pulled about 1 mm. It is thought that this was the point at which the sample tore.
- a synthetic resin layer does not tear at about 1 mm in the same way as paper. Up to about 3 mm strength increases proportionally, after which the resin exhibits a stable strength value without tearing and then tears.
- the inclination angle of the curve and the displacement before tearing differ depending on the type of synthetic resin.
- FIG. 7 shows results for 60 ⁇ m polyethylene resin laminated on both sides of paper
- FIG. 8 shows results for a composite layer of 60 ⁇ m polyethylene resin and 12 ⁇ m polyethylene terephthalate resin laminated on both sides of paper.
- the resulting graph is roughly what would result from combining the graphs for the single-layer samples of FIGS. 4 and 5
- the graph obtained in FIG. 8 is roughly what would result from combining the graphs of FIGS. 4 and 6 .
- connection parts of the single-layer samples break when pulled about 1 mm
- laminating a synthetic resin allows for stable transportation because breakage does not occur even when the connection parts are pulled with strong pull force.
- connection parts can also be adjusted by adjusting the combination and thickness of the synthetic resin layers.
- a composite layer was also prepared consisting of 60 ⁇ m-thick polyethylene resin (PE) attached to both sides of the aforementioned paper.
- PE polyethylene resin
- Each sample was cut into 30 mm width and 100 mm long strips, and a folding line was drawn across the width of each strip. Black sheets were prepared, and each strip was subjected several times to bending stress along the folding line atop the black sheet. Samples were torn along the fold line after five folds and after ten folds, and the amount of paper dust scattered on the black sheet was examined visually.
- Closure samples were prepared with the layered structures shown in FIGS. 9( a ) to ( e ) using this grey-colored paperboard.
- the closure samples used in this example were bands of connected closures comprising multiple closures connected by their connection parts.
- Sample 1 grey-colored paperboard ( 41 )/80 ⁇ m PE ( 42 )/grey-colored paperboard ( 41 )
- connection parts the surface layers formed by paper on both sides are cut, leaving the closures attached by the synthetic resin layer ( FIG. 9( a )).
- Sample 2 grey-colored paperboard ( 41 )/40 ⁇ m PE ( 42 )/12 ⁇ m PET ( 43 )/40 ⁇ m PE ( 42 )/grey-colored paperboard ( 41 )
- connection parts the surface layers formed by paper on both sides are cut, leaving the closures connected by the synthetic resin layers ( FIG. 9( b )).
- Sample 3 grey-colored paperboard ( 41 )/40 ⁇ m PE ( 42 )/12 ⁇ m PET ( 43 )/40 ⁇ m PE ( 42 )/grey-colored paperboard ( 41 )
- Notches are formed in the connection parts through about 2/3 of thickness of the surface of both surface layers formed from paper, leaving the closures connected by the synthetic resin layers and by thinned layer of paper ( FIG. 9( c )).
- Sample 4 grey-colored paperboard ( 41 )/40 ⁇ m PE ( 42 )/12 ⁇ m PET ( 43 )/40 ⁇ m PE ( 42 )/grey-colored paperboard ( 41 )
- connection parts one of the surface layers formed of paper is cut, leaving the closures connected by a layer of synthetic resin and a single layer formed of paper ( FIG. 9( d )).
- Sample 5 grey-colored paperboard ( 41 )/40 ⁇ m PE ( 42 )/12 ⁇ m PET ( 43 )/40 ⁇ m PE ( 42 )/grey-colored paperboard ( 41 )
- connection parts No notches are formed in the connection parts ( FIG. 9( e )).
- connection strength test was performed using the bands of connected closures described above. Connection strength was measured in two directions, i.e., in the direction of feed and in the direction of across-the-width.
- connection strength in the direction of feed was measured as shown in FIG. 10 by securing closures 51 and 51 connected by connection parts 52 with chucks 55 and 56 disposed above and below the closures, exerting perpendicular pull, and measuring the strength at the time that the connection parts of the adjacent closures were detached.
- connection strength in the across-the-width direction was measured as shown in FIG. 11 by securing closures 51 and 51 connected by connection parts 52 and 52 with chucks 55 and 56 disposed above and below the closures, exerting perpendicular pull, and measuring the strength at the time when the connection parts of the adjacent closures were detached.
- Sample No. 4 having notches formed on the surface of one side of the connection parts on the band of connected closures had less detachment strength in both the direction of feed and the across-the-width direction than Sample No. 5, which had no formed notches.
- Sample No. 3 having notches formed about 2/3 of the way towards the inner layer on both surfaces had less detachment strength than Sample No. 4.
- Samples No. 1 and No. 2 whose paper layers are severed in the connection parts had even less detachment strength, and Sample No. 1 in particular had particularly low detachment strength in the across-the-width direction.
- closures according to the present invention was manufactured and subjected to impact-resistance testing (drop test).
- the closures prepared and used in this example were single-layer paper samples 22 mm long and 21 mm wide, with a basis weight of 280 g/m 2 (Sample 6), 440 g/m 2 (Sample 7), 560 g/m 2 (Sample 8), 840 g/m 2 (Sample 9) and 1100 g/m 2 (Sample 10), and a commercial plastic closure (polystyrene, 800 ⁇ m thick, Sample 11) was also prepared.
- the impact resistance test was performed as follows.
- a one-loaf bread bag was inflated with air, and the opening was closed with the closure.
- ⁇ means no damage to the closure
- x means the closure tore or was detached from the opening of the bag.
- the bending strength test was performed by the method shown in FIG. 13 using a tensile tester (TENSILON RTC-1210A, made by Orientec Co.).
- Closures were prepared using food packaging paper with relatively long fibers (100% virgin pulp, no recycled paper) and a basis weight of 350 g/m 2 , with connection parts on the sides, to prepare a band of connected closures in which the adjacent connection parts were connected to each other in a line (Sample 12).
- a band of connected closures was also prepared using the grey-colored paperboard (MARICOAT made by Hokuetsu Paper Mills, Ltd.) with relatively short fibers and a basis weight of 600 g/m 2 .
- Each closure was provided with connection parts on the side faces that were connected in a line to adjacent connection parts to prepare a band of connected closures (Sample 13).
- closures 51 and 51 connected by connection parts 52 and 52 were secured with chucks 55 and 56 arranged above and below the closures, perpendicular pull was exerted, and the strength was measured at the time that the connection parts of the closures were detached.
- Sample 13 with relatively short fibers had less connection strength than Sample 12 with relatively long fibers.
- FIG. 1 is a plane view showing one example of a closure of an embodiment of the present invention.
- FIG. 2 is a cross-section along an arrow II-II showing a closure 1 of the embodiment shown in FIG. 1 .
- FIG. 3 is a plane view showing part of a band of connected closures of another embodiment of the present invention.
- FIG. 4 is a graph showing the relationship between pulled distance and tensile strength for a single-layer sample (paper).
- FIG. 5 is a graph showing the relationship between pulled distance and tensile strength for polyethylene.
- FIG. 6 is a graph showing the relationship between pulled distance and tensile strength for a composite layer.
- FIG. 7 is a graph showing the relationship between pulled distance and tensile strength for a composite layer of paper and polyethylene synthetic resin.
- FIG. 8 is a graph showing the relationship between pulled distance and tensile strength for a composite layer of paper and synthetic resin.
- FIG. 9 shows cross-sections of the closures of Example 4, which consist of layers of paper and synthetic resin.
- FIG. 10 is an outline explaining a connection strength test in the direction of feed performed using the band of connected closures of Example 4.
- FIG. 11 is an outline explaining a tensile strength test in the across-the-width direction using the bands of connected closures according to Examples 4 and 7.
- FIG. 12 is an outline showing one example of a method for closing an object to be closed using a closure according to an embodiment of the present invention.
- FIG. 13 is an outline explaining the bending strength test performed in Example 6.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
- Sealing Material Composition (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007140462 | 2007-05-28 | ||
| JP2007-140462 | 2007-05-28 | ||
| PCT/JP2008/058582 WO2008146585A1 (ja) | 2007-05-28 | 2008-05-08 | 結束具及び結束具連結帯 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20100122436A1 true US20100122436A1 (en) | 2010-05-20 |
Family
ID=40074852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US12/450,978 Abandoned US20100122436A1 (en) | 2007-05-28 | 2008-05-08 | Closure and band of connected closures |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100122436A1 (ja) |
| EP (1) | EP2149505A4 (ja) |
| JP (1) | JP4312258B2 (ja) |
| WO (1) | WO2008146585A1 (ja) |
| ZA (1) | ZA200907891B (ja) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD707553S1 (en) * | 2013-03-08 | 2014-06-24 | Joshua Vantrease | Enclosure fastener |
| NL2019208B1 (nl) * | 2017-07-10 | 2019-01-16 | Schutte Bagclosures B V | Band van aan elkaar gekoppelde vlakvormige sluitingen uit kunststof |
| USD871212S1 (en) | 2018-09-25 | 2019-12-31 | Klr Systems Inc. | Bag closure clip |
| USD880296S1 (en) | 2018-09-25 | 2020-04-07 | Klr Systems Inc. | Bag closure clip |
| WO2020092252A3 (en) * | 2018-10-29 | 2020-09-10 | Kwik Lok Corporation | Closure strip of adjacent closure devices |
| USD905552S1 (en) | 2018-10-18 | 2020-12-22 | Bedford Industries, Inc. | Label |
| USD957937S1 (en) | 2018-10-18 | 2022-07-19 | Bedford Industries, Inc. | Packaging fastener |
| WO2023214967A1 (en) * | 2022-05-04 | 2023-11-09 | Kwik Lok Corporation | Bag closing apparatus |
| USD1005104S1 (en) * | 2019-09-27 | 2023-11-21 | Bedford Industries, Inc. | Closure roll |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3164250A (en) * | 1963-11-22 | 1965-01-05 | Kwik Lok | Polystyrene multi-closure strip adapted for separation into individual closures |
| US3270874A (en) * | 1965-08-27 | 1966-09-06 | Kwik Lok | Polystyrene multi-closure strip scored for separation into individual closures |
| US4159586A (en) * | 1977-09-15 | 1979-07-03 | Blum Julian J | Multilayered labeling system |
| US4333566A (en) * | 1980-12-01 | 1982-06-08 | Kwik Lok Corp. | Closure strip |
| US4428134A (en) * | 1980-04-14 | 1984-01-31 | Billy P. Noyes | Closure tab |
| US4509231A (en) * | 1983-05-27 | 1985-04-09 | Paxton Jerre Hale | Dual-opening bag closure |
| US4772512A (en) * | 1986-07-29 | 1988-09-20 | Kisokaseisangyou Co., Ltd. | Composite film for bar code labels |
| US4783886A (en) * | 1987-08-24 | 1988-11-15 | Koppe Lou W | Paper-laminated pliable closure for flexible bags |
| US4911293A (en) * | 1989-02-10 | 1990-03-27 | Kwik Lok Corporation | Closure strip having offset protrusions |
| US5138748A (en) * | 1991-08-19 | 1992-08-18 | Welles Theodore W | Bag closure |
| US20040231111A1 (en) * | 2003-05-23 | 2004-11-25 | Martinez Michael A. | Sealing clasp |
| US20060042051A1 (en) * | 2004-08-27 | 2006-03-02 | Irwin Jere F | Strips of clips and clip |
| US20060141227A1 (en) * | 2003-06-24 | 2006-06-29 | Miki Sudo | Synthetic resin card and method of producing the same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1473296A (en) * | 1974-07-24 | 1977-05-11 | Britt J | Package tag |
| US4694542A (en) * | 1986-02-14 | 1987-09-22 | Koppe Lou W | Foldable closure for flexible bags comprising flat sheet with integral axial hinge groove, lead in notch, and gripping aperture |
| JPH0722949U (ja) * | 1993-09-28 | 1995-04-25 | 菅公工業株式会社 | 組立て立体状飾り部付きの封緘具 |
| JP3006196U (ja) * | 1994-07-06 | 1995-01-17 | 糺 中村 | 袋の止め具 |
| JP2001287767A (ja) * | 2000-04-10 | 2001-10-16 | Dainippon Printing Co Ltd | 切目線付き包装材料 |
| JP3072697U (ja) * | 2000-04-20 | 2000-10-24 | 末吉 能地 | 袋の開閉器具 |
| WO2005104808A2 (en) * | 2004-04-28 | 2005-11-10 | Irwin Jere F | Strip of clips and clips |
-
2008
- 2008-05-08 EP EP08752468A patent/EP2149505A4/en not_active Withdrawn
- 2008-05-08 US US12/450,978 patent/US20100122436A1/en not_active Abandoned
- 2008-05-08 JP JP2008551373A patent/JP4312258B2/ja not_active Expired - Fee Related
- 2008-05-08 WO PCT/JP2008/058582 patent/WO2008146585A1/ja not_active Ceased
-
2009
- 2009-11-10 ZA ZA200907891A patent/ZA200907891B/xx unknown
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3164250A (en) * | 1963-11-22 | 1965-01-05 | Kwik Lok | Polystyrene multi-closure strip adapted for separation into individual closures |
| US3270874A (en) * | 1965-08-27 | 1966-09-06 | Kwik Lok | Polystyrene multi-closure strip scored for separation into individual closures |
| US4159586A (en) * | 1977-09-15 | 1979-07-03 | Blum Julian J | Multilayered labeling system |
| US4428134A (en) * | 1980-04-14 | 1984-01-31 | Billy P. Noyes | Closure tab |
| US4333566A (en) * | 1980-12-01 | 1982-06-08 | Kwik Lok Corp. | Closure strip |
| US4509231A (en) * | 1983-05-27 | 1985-04-09 | Paxton Jerre Hale | Dual-opening bag closure |
| US4772512A (en) * | 1986-07-29 | 1988-09-20 | Kisokaseisangyou Co., Ltd. | Composite film for bar code labels |
| US4783886A (en) * | 1987-08-24 | 1988-11-15 | Koppe Lou W | Paper-laminated pliable closure for flexible bags |
| US4911293A (en) * | 1989-02-10 | 1990-03-27 | Kwik Lok Corporation | Closure strip having offset protrusions |
| US5138748A (en) * | 1991-08-19 | 1992-08-18 | Welles Theodore W | Bag closure |
| US20040231111A1 (en) * | 2003-05-23 | 2004-11-25 | Martinez Michael A. | Sealing clasp |
| US20060141227A1 (en) * | 2003-06-24 | 2006-06-29 | Miki Sudo | Synthetic resin card and method of producing the same |
| US20060042051A1 (en) * | 2004-08-27 | 2006-03-02 | Irwin Jere F | Strips of clips and clip |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD707553S1 (en) * | 2013-03-08 | 2014-06-24 | Joshua Vantrease | Enclosure fastener |
| NL2019208B1 (nl) * | 2017-07-10 | 2019-01-16 | Schutte Bagclosures B V | Band van aan elkaar gekoppelde vlakvormige sluitingen uit kunststof |
| WO2019013624A1 (en) * | 2017-07-10 | 2019-01-17 | Schutte Bagclosures B.V. | BAND OF FLAT CLOSURE ELEMENTS COMPRISING PLASTIC FOAM COUPLED BETWEEN THEM |
| AU2018301157B2 (en) * | 2017-07-10 | 2022-10-13 | Schutte Bagclosures B.V. | Strip of flat closures made of plastic foam that are coupled together |
| USD871212S1 (en) | 2018-09-25 | 2019-12-31 | Klr Systems Inc. | Bag closure clip |
| USD880296S1 (en) | 2018-09-25 | 2020-04-07 | Klr Systems Inc. | Bag closure clip |
| USD905552S1 (en) | 2018-10-18 | 2020-12-22 | Bedford Industries, Inc. | Label |
| USD957937S1 (en) | 2018-10-18 | 2022-07-19 | Bedford Industries, Inc. | Packaging fastener |
| USD981231S1 (en) * | 2018-10-18 | 2023-03-21 | Bedford Industries, Inc. | Packaging fastener |
| WO2020092252A3 (en) * | 2018-10-29 | 2020-09-10 | Kwik Lok Corporation | Closure strip of adjacent closure devices |
| USD1005104S1 (en) * | 2019-09-27 | 2023-11-21 | Bedford Industries, Inc. | Closure roll |
| WO2023214967A1 (en) * | 2022-05-04 | 2023-11-09 | Kwik Lok Corporation | Bag closing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4312258B2 (ja) | 2009-08-12 |
| JPWO2008146585A1 (ja) | 2010-08-19 |
| WO2008146585A1 (ja) | 2008-12-04 |
| EP2149505A1 (en) | 2010-02-03 |
| ZA200907891B (en) | 2010-07-28 |
| EP2149505A4 (en) | 2011-03-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: CHOKOKU PLAST CORPORATION,JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAKAHASHI, SAKARU;INAGAKI, HIROMICHI;REEL/FRAME:024043/0299 Effective date: 20090928 Owner name: INAGAKI, HIROMICHI,JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAKAHASHI, SAKARU;INAGAKI, HIROMICHI;REEL/FRAME:024043/0299 Effective date: 20090928 |
|
| STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |