CA2270358C - Method for making tamper-evident container with reclosable fastener - Google Patents
Method for making tamper-evident container with reclosable fastener Download PDFInfo
- Publication number
- CA2270358C CA2270358C CA002270358A CA2270358A CA2270358C CA 2270358 C CA2270358 C CA 2270358C CA 002270358 A CA002270358 A CA 002270358A CA 2270358 A CA2270358 A CA 2270358A CA 2270358 C CA2270358 C CA 2270358C
- Authority
- CA
- Canada
- Prior art keywords
- fastener
- container
- flexible material
- reclosable
- seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2575—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor the slide fastener providing access to the bag through a bag wall, e.g. intended to be cut open by the consumer
- B65D33/2583—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor the slide fastener providing access to the bag through a bag wall, e.g. intended to be cut open by the consumer the slide fastener being attached to one wall only
-
- 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
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2516—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener
- B65D33/2533—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener the slide fastener being located between the product compartment and the tamper indicating means
-
- 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
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2575—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor the slide fastener providing access to the bag through a bag wall, e.g. intended to be cut open by the consumer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Making Paper Articles (AREA)
- Cartons (AREA)
- Closures For Containers (AREA)
Abstract
A method for attaching a reclosable zipper fastener (12) to a flexible material (24) from which a container is made to provide a tamper-evident reclosable seal. A plurality of cuts (30, 32) are formed through a segment of the flexible material to form a removable portion (28). The reclosable zipper fastener is cut to a length sufficient to overly the removable portion. A splotch seal is formed at the ends of the reclosable zipper by applying heat and pressure to yield a flattened, broadened segment at each of said opposed distal ends. The splotch sealed fastener is attached to the flexible material by forming a continuous perimeter seal (26) around tho removable portion between the fastener and the flexible material.
Description
ENTITLED: METHOD FOR MAKING TAMPER-EVIDENT
CONTAINER WITH RECLOSABLE FASTENER
BACKGROUND OF THE INVENTION
s Field of the Invention.
The present invention relates to an improved reclosable, tamper-evident container formed, at least in part, from a flexible material. Access to the interior of such a container is provided by a security seal formed through the flexible material, and the reclosable fastener of this invention is attached to the container io in sealing relation to that seal. The improved fastener of this invention is particularly characterized by its structure comprising a pair of mating, reclosable sealing strips, both of which are attached to a common surface of the container's flexible material. Preferably, the reclosable fastener of this invention is disposed on the inside surface of the container.
Description of the Prior Art.
Reclosable containers utilizing zipper-type fasteners are well known in the packaging industry and are used for holding, displaying and dispensing a wide variety of products ranging from hardware items to food products intended for human consumption. The construction of virtually all such prior art fasteners s comprises one or more female parts which releasably receive one or more corresponding male parts. In order to provide access to the interior of the container, those portions of the fastener bearing the respective female and male parts must typically be attached to opposing sides of the container such that the female and male parts will be in registry with each other. A typical such ~o construction is disclosed in U. S. Patent No. 4,909,017 to McMahon and Spanier.
Obviously, then, according to the present state of the packaging arts, great care and precision are required in the placement and attachment of reclosable fasteners to their related containers. Notwithstanding the existence of a great is variety of such fasteners and reclosable containers utilizing such fasteners, it is clear that there remains a great need in the packaging arts for a reclosable, zipper-type fastener, both parts of which can be attached to a single common surface of the material forming a wall of the container before the container is even partially formed. Such a fastener would significantly simplify the Zo manufacturing process for reclosable containers by not interfering with the operation of standard forming and filling machines.
CONTAINER WITH RECLOSABLE FASTENER
BACKGROUND OF THE INVENTION
s Field of the Invention.
The present invention relates to an improved reclosable, tamper-evident container formed, at least in part, from a flexible material. Access to the interior of such a container is provided by a security seal formed through the flexible material, and the reclosable fastener of this invention is attached to the container io in sealing relation to that seal. The improved fastener of this invention is particularly characterized by its structure comprising a pair of mating, reclosable sealing strips, both of which are attached to a common surface of the container's flexible material. Preferably, the reclosable fastener of this invention is disposed on the inside surface of the container.
Description of the Prior Art.
Reclosable containers utilizing zipper-type fasteners are well known in the packaging industry and are used for holding, displaying and dispensing a wide variety of products ranging from hardware items to food products intended for human consumption. The construction of virtually all such prior art fasteners s comprises one or more female parts which releasably receive one or more corresponding male parts. In order to provide access to the interior of the container, those portions of the fastener bearing the respective female and male parts must typically be attached to opposing sides of the container such that the female and male parts will be in registry with each other. A typical such ~o construction is disclosed in U. S. Patent No. 4,909,017 to McMahon and Spanier.
Obviously, then, according to the present state of the packaging arts, great care and precision are required in the placement and attachment of reclosable fasteners to their related containers. Notwithstanding the existence of a great is variety of such fasteners and reclosable containers utilizing such fasteners, it is clear that there remains a great need in the packaging arts for a reclosable, zipper-type fastener, both parts of which can be attached to a single common surface of the material forming a wall of the container before the container is even partially formed. Such a fastener would significantly simplify the Zo manufacturing process for reclosable containers by not interfering with the operation of standard forming and filling machines.
2 SUMMARY OF THE INVENTION
The present invention relates to an improved tamper-evident container formed from a flexible material and having a reclosable fastener. In a preferred embodiment, the fastener of this invention comprises a pair of mating, reclosable sealing strips, each comprising a strip base segment which is attachable to a s common surface of the material forming a wall of a reclosable container.
Each of the sealing strips further comprise a second segment integral with its corresponding base segment and free from the container wall surface. One of the strips comprises a male fastener part, and the other of the strips comprises a female fastener part in receiving relation to the male part. Tamper-evident to access to the interior of the container is provided by a removable portion of the flexible material to form an aperture for access to the reclosable fastener.
According to a first embodiment of the reclosable fastener, the male fastener part is at the juncture of one of the base segments and its corresponding second segment, and the female fastener part is formed on the second segment is of the other sealing strip. Both base segments are attached to a common interior surface of the flexible material, and both second segments are free from the common surface.
According to a second embodiment, the female fastener part is formed on one of the sealing strip second segments, and that second segment is attached to Zo a second surface of the flexible material opposite the common surface.
The present invention relates to an improved tamper-evident container formed from a flexible material and having a reclosable fastener. In a preferred embodiment, the fastener of this invention comprises a pair of mating, reclosable sealing strips, each comprising a strip base segment which is attachable to a s common surface of the material forming a wall of a reclosable container.
Each of the sealing strips further comprise a second segment integral with its corresponding base segment and free from the container wall surface. One of the strips comprises a male fastener part, and the other of the strips comprises a female fastener part in receiving relation to the male part. Tamper-evident to access to the interior of the container is provided by a removable portion of the flexible material to form an aperture for access to the reclosable fastener.
According to a first embodiment of the reclosable fastener, the male fastener part is at the juncture of one of the base segments and its corresponding second segment, and the female fastener part is formed on the second segment is of the other sealing strip. Both base segments are attached to a common interior surface of the flexible material, and both second segments are free from the common surface.
According to a second embodiment, the female fastener part is formed on one of the sealing strip second segments, and that second segment is attached to Zo a second surface of the flexible material opposite the common surface.
3 Also disclosed and claimed hereinafter is a method for attaching the reclosable zipper-type fastener to the flexible material from which the container is made so as to provide a tamper-evident reclosable seal.
The invention accordingly comprises the features of construction, combination of elements, and arrangement of parts which will be exemplified in s the constructions hereinafter set forth, and the scope of the invention will be indicated in the claims.
The invention accordingly comprises the features of construction, combination of elements, and arrangement of parts which will be exemplified in s the constructions hereinafter set forth, and the scope of the invention will be indicated in the claims.
4 BRIEF DESCRIPTION OF THE DRAWINGS
For a fuller understanding of the nature and objects of the invention, reference should be had to the following detailed description taken in connection with the accompanying drawings, in which:
FIGURE 1 is a side elevation showing a segment of a first embodiment s of the container of this invention with the fastener attached to the inside of a segment of the flexible material at least partially forming a reclosable container.
FIGURE 2 is a side elevation similar to that of Fig. 1 showing the segment of the reclosable container with the tamper-evident portion removed and the fastener opened.
to FIGURE 3 is a view similar to that of Fig. 1 showing a second embodiment of the container.
FIGURE 4 is a side elevation similar to that of Fig. 3 showing the segment of the reclosable container with the tamper-evident portion removed and the fastener opened.
is FIGURE 5 is a sectional view taken along line 5-5 of Fig. 6 showing attachment of the reclosable fastener to a common interior surface of a reclosable container.
FIGURE 6 is a plan view of the reclosable container shown in Fig. 5.
Similar reference characters refer to similar parts throughout the several Zo views of the drawings.
DETAILED DESCRIPTION
A first embodiment of the improved tamper-evident container formed from a flexible material and having a reclosable fastener is generally indicated as 10 in the views of Figs. 1, 2, 5 and 6. The reclosable fastener is generally indicated as 12.
s Referring to the view of Fig. 1, it can be seen that fastener 12 comprises a pair of mating, reclosable sealing strips, generally indicated as 14 and 16, respectively. Each of the sealing strips 14 and 16 comprise a base segment i8 and 20, respectively. Base segment 18 is attached to interior surface 22 of flexible material 24, and base segment 20 is similarly attached to the common to interior surface 22. As shown in Fig. 1, attachment of the fastener 12 to common interior surface 22 is indicated by perimeter seal 26.
Also shown in the view of Fig. 1 is a removable portion 28 of flexible material 24 by which access to the interior of container 10 may be obtained once portion 28 is removed to form an aperture providing access to strips 14 and 16 is whereby they may be separated from each other. This is clearly illustrated in the "opened" view of Fig. 2. Referring to the view of Fig. 6, it can be seen that removable portion 28 is defined by a plurality of cuts formed through flexible material 24. In the preferred embodiment, these cuts comprise a plurality of perforations 30 and at least one slit 32, though a pair of opposed slits 32 are zo illustrated in the view of Fig. 6. Slit 32 provides a free segment of flexible material 24 whereby portion 28 may be removed to provide access to fastener 12.
The perforations 30 are preferably formed within the area defined by line A-A, and the slit, or slits, 32 are preferably formed within the area between arrows B.
Returning to the view of Fig. 1, sealing strip 14 further comprises a second segment 34 integrally formed therewith, but not attached to common interior surface 22. Sealing strip 16 also comprises a second segment 36 integral with its base segment 20, but not attached to common interior surface 22. A
female fastener part 38 is formed on second segment 34, and a corresponding male fastener part 40 is formed on sealing strip 16 at the juncture of base segment 2(? with second segment 36.
As further shown in the view of Fig. 1, container 10 further includes to another segment of flexible material 24' forming another wall thereof, and a seam 42 is provided by the joining of flexible material 24 to a corresponding segment of flexible material 24' . Referring to the views of Figs. 5 and 6, a similar seam 42' is formed at the bottom of container 10.
Referring to the view of Fig. 6, and remembering that a principal end use ~s for the container 10 is to hold food products intended for human consumption, the formation of an hermetic seal is a particular advantage of this invention.
As shown in Fig. 6, the perimeter seal 26 extends around the perimeter of fastener 12. However, a broadened segment 44 can be seen at each end of perimeter seal 26. Broadened segment 44 is frequently referred to in the packaging industry as 2o a "splotch" seal. Such a splotch seal involves the application of heat and pressure to the distal ends of sealing strips 14 and I6 so as to form a flattened, broadened segment 44. Then, when the fastener 12 is attached to common CA 022703s8 1999-04-28 interior surface 22 of flexible material 24 by the perimeter seal 26, an hermetic seal is formed in completely surrounding relation to the removable portion 28.
Referring now to the views of Figs. 3 and 4, a second embodiment of the tamper-evident container is generally indicated as 10'. Inasmuch as the structural elements of container 10' are essentially identical to those of first embodiment s 10> identical reference numerals have been used for their identification. As clearly shown in the views of Figs. 3 and 4, second embodiment 10' further comprises a tack seal 46 to bond second segment 34 to inside surface 48 of flexible material 24' forming the opposite side of container 10' . Such a construction virtually eliminates any probability of material contained within to container 10' becoming wedged or caught in the gap otherwise present between second segment 34 and flexible material 24' .
From the above description of the structure of first and second embodiments of the container 10 and 10', respectively, attention is now invited to the following description of the method for attaching fastener 12 to a flexible is material 24 for providing a tamper-evident reclosable opening therethrough.
First> a segment of flexible material 24 is selected for forming a container 10.
A plurality of cuts comprising perforations 30 and at least one slit 32 are made to define a removable portion 28. Next, a reclosable zipper-type fastener 12 is selected and cut to a predetermined length sufficient to overlie the removable Zo portion 28. Opposed distal ends of fastener 12 are then "splotched" and the splotched length of fastener is disposed in adjacent, overlying relation to removable portion 28. The perimeter seal 26 is formed by the application of pressure and heat. If desired, tack seal 46 would be made in a subsequent step.
From that point on, the container would be formed and filled using standard form and fill apparatus and methods. No further manipulation of fastener 12 and its related removable portion 28 is required.
It will thus be seen that the objects set forth above, among those made apparent from the preceding description, are efficiently attained, and, since s certain changes may be made in the above construction without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
It is also to be understood that the following claims are intended to cover to all of the generic and specific features of the invention herein described, and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.
Now that the invention has been described,
For a fuller understanding of the nature and objects of the invention, reference should be had to the following detailed description taken in connection with the accompanying drawings, in which:
FIGURE 1 is a side elevation showing a segment of a first embodiment s of the container of this invention with the fastener attached to the inside of a segment of the flexible material at least partially forming a reclosable container.
FIGURE 2 is a side elevation similar to that of Fig. 1 showing the segment of the reclosable container with the tamper-evident portion removed and the fastener opened.
to FIGURE 3 is a view similar to that of Fig. 1 showing a second embodiment of the container.
FIGURE 4 is a side elevation similar to that of Fig. 3 showing the segment of the reclosable container with the tamper-evident portion removed and the fastener opened.
is FIGURE 5 is a sectional view taken along line 5-5 of Fig. 6 showing attachment of the reclosable fastener to a common interior surface of a reclosable container.
FIGURE 6 is a plan view of the reclosable container shown in Fig. 5.
Similar reference characters refer to similar parts throughout the several Zo views of the drawings.
DETAILED DESCRIPTION
A first embodiment of the improved tamper-evident container formed from a flexible material and having a reclosable fastener is generally indicated as 10 in the views of Figs. 1, 2, 5 and 6. The reclosable fastener is generally indicated as 12.
s Referring to the view of Fig. 1, it can be seen that fastener 12 comprises a pair of mating, reclosable sealing strips, generally indicated as 14 and 16, respectively. Each of the sealing strips 14 and 16 comprise a base segment i8 and 20, respectively. Base segment 18 is attached to interior surface 22 of flexible material 24, and base segment 20 is similarly attached to the common to interior surface 22. As shown in Fig. 1, attachment of the fastener 12 to common interior surface 22 is indicated by perimeter seal 26.
Also shown in the view of Fig. 1 is a removable portion 28 of flexible material 24 by which access to the interior of container 10 may be obtained once portion 28 is removed to form an aperture providing access to strips 14 and 16 is whereby they may be separated from each other. This is clearly illustrated in the "opened" view of Fig. 2. Referring to the view of Fig. 6, it can be seen that removable portion 28 is defined by a plurality of cuts formed through flexible material 24. In the preferred embodiment, these cuts comprise a plurality of perforations 30 and at least one slit 32, though a pair of opposed slits 32 are zo illustrated in the view of Fig. 6. Slit 32 provides a free segment of flexible material 24 whereby portion 28 may be removed to provide access to fastener 12.
The perforations 30 are preferably formed within the area defined by line A-A, and the slit, or slits, 32 are preferably formed within the area between arrows B.
Returning to the view of Fig. 1, sealing strip 14 further comprises a second segment 34 integrally formed therewith, but not attached to common interior surface 22. Sealing strip 16 also comprises a second segment 36 integral with its base segment 20, but not attached to common interior surface 22. A
female fastener part 38 is formed on second segment 34, and a corresponding male fastener part 40 is formed on sealing strip 16 at the juncture of base segment 2(? with second segment 36.
As further shown in the view of Fig. 1, container 10 further includes to another segment of flexible material 24' forming another wall thereof, and a seam 42 is provided by the joining of flexible material 24 to a corresponding segment of flexible material 24' . Referring to the views of Figs. 5 and 6, a similar seam 42' is formed at the bottom of container 10.
Referring to the view of Fig. 6, and remembering that a principal end use ~s for the container 10 is to hold food products intended for human consumption, the formation of an hermetic seal is a particular advantage of this invention.
As shown in Fig. 6, the perimeter seal 26 extends around the perimeter of fastener 12. However, a broadened segment 44 can be seen at each end of perimeter seal 26. Broadened segment 44 is frequently referred to in the packaging industry as 2o a "splotch" seal. Such a splotch seal involves the application of heat and pressure to the distal ends of sealing strips 14 and I6 so as to form a flattened, broadened segment 44. Then, when the fastener 12 is attached to common CA 022703s8 1999-04-28 interior surface 22 of flexible material 24 by the perimeter seal 26, an hermetic seal is formed in completely surrounding relation to the removable portion 28.
Referring now to the views of Figs. 3 and 4, a second embodiment of the tamper-evident container is generally indicated as 10'. Inasmuch as the structural elements of container 10' are essentially identical to those of first embodiment s 10> identical reference numerals have been used for their identification. As clearly shown in the views of Figs. 3 and 4, second embodiment 10' further comprises a tack seal 46 to bond second segment 34 to inside surface 48 of flexible material 24' forming the opposite side of container 10' . Such a construction virtually eliminates any probability of material contained within to container 10' becoming wedged or caught in the gap otherwise present between second segment 34 and flexible material 24' .
From the above description of the structure of first and second embodiments of the container 10 and 10', respectively, attention is now invited to the following description of the method for attaching fastener 12 to a flexible is material 24 for providing a tamper-evident reclosable opening therethrough.
First> a segment of flexible material 24 is selected for forming a container 10.
A plurality of cuts comprising perforations 30 and at least one slit 32 are made to define a removable portion 28. Next, a reclosable zipper-type fastener 12 is selected and cut to a predetermined length sufficient to overlie the removable Zo portion 28. Opposed distal ends of fastener 12 are then "splotched" and the splotched length of fastener is disposed in adjacent, overlying relation to removable portion 28. The perimeter seal 26 is formed by the application of pressure and heat. If desired, tack seal 46 would be made in a subsequent step.
From that point on, the container would be formed and filled using standard form and fill apparatus and methods. No further manipulation of fastener 12 and its related removable portion 28 is required.
It will thus be seen that the objects set forth above, among those made apparent from the preceding description, are efficiently attained, and, since s certain changes may be made in the above construction without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
It is also to be understood that the following claims are intended to cover to all of the generic and specific features of the invention herein described, and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.
Now that the invention has been described,
Claims
1. A method for attaching a reclosable zipper fastener to a flexible material from which a container is made so as to provide a tamper-evident reclosable seal which is free of any container seal, said method comprising the steps of:
(a) selecting a segment of flexible material to be used for forming the container;
(b) forming a plurality of cuts through said segment to define a removable portion on the exterior of the container;
(c) selecting a reclosable zipper fastener comprising a pair of mating, reclosable sealing strips;
(d) cutting said fastener to a predetermined length sufficient to overlay said removable portion and remain free of any container seal;
(e) forming a splotch seal at opposed distal ends of said strips at each end of said length by the application of heat and pressure to yield a flattened, broadened segment at each of said opposed distal ends;
(f) placing said splotch sealed fastener adjacent said flexible material in overlying relation to said cuts; and (g) attaching said splotch sealed fastener to said flexible material by forming a perimeter seal around said removable portion between said fastener and said flexible material such that said perimeter seal is continuous around the perimeter of said sealed fastener and free of any container seal.
(a) selecting a segment of flexible material to be used for forming the container;
(b) forming a plurality of cuts through said segment to define a removable portion on the exterior of the container;
(c) selecting a reclosable zipper fastener comprising a pair of mating, reclosable sealing strips;
(d) cutting said fastener to a predetermined length sufficient to overlay said removable portion and remain free of any container seal;
(e) forming a splotch seal at opposed distal ends of said strips at each end of said length by the application of heat and pressure to yield a flattened, broadened segment at each of said opposed distal ends;
(f) placing said splotch sealed fastener adjacent said flexible material in overlying relation to said cuts; and (g) attaching said splotch sealed fastener to said flexible material by forming a perimeter seal around said removable portion between said fastener and said flexible material such that said perimeter seal is continuous around the perimeter of said sealed fastener and free of any container seal.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US740,438 | 1996-10-29 | ||
| US08/740,438 US20020020481A1 (en) | 1995-05-11 | 1996-10-29 | Tamper-evident container with reclosable fastener and method for making |
| PCT/US1997/010379 WO1998018679A2 (en) | 1996-10-29 | 1997-06-20 | Method for making tamper-evident container with reclosable fastener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2270358A1 CA2270358A1 (en) | 1998-05-07 |
| CA2270358C true CA2270358C (en) | 2007-03-13 |
Family
ID=24976512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002270358A Expired - Lifetime CA2270358C (en) | 1996-10-29 | 1997-06-20 | Method for making tamper-evident container with reclosable fastener |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20020020481A1 (en) |
| EP (2) | EP1495984B1 (en) |
| JP (1) | JP2002511819A (en) |
| AT (2) | ATE501942T1 (en) |
| AU (1) | AU724759B2 (en) |
| BR (1) | BR9712694A (en) |
| CA (1) | CA2270358C (en) |
| DE (2) | DE69732146T2 (en) |
| WO (1) | WO1998018679A2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2780704B1 (en) * | 1998-07-03 | 2000-09-15 | Autobar Plastiques | WATERPROOF CLOSABLE BAG |
| US7101079B2 (en) | 1999-05-11 | 2006-09-05 | Sargento Foods, Inc. | Resealable bag for filling with food product(s) and method |
| GB0406620D0 (en) * | 2004-03-24 | 2004-04-28 | Supreme Plastics Holdings Ltd | Reclosable bag |
| GB0419217D0 (en) * | 2004-08-28 | 2004-09-29 | Supreme Plastics Holdings Ltd | Reclosable bag |
| US20070092166A1 (en) * | 2005-10-25 | 2007-04-26 | Anzini David J | Reclosable pouches or bags having front panel containment zipper |
| US20160031608A1 (en) * | 2014-07-31 | 2016-02-04 | Illinois Tool Works Inc. | Fold locking configuration for reclosable package or bag |
| CN117549605A (en) * | 2015-09-14 | 2024-02-13 | 出光统一科技株式会社 | Bag body with fastener tape, bag body, method for manufacturing bag body, and device for manufacturing bag body |
| CN108577109B (en) * | 2018-07-17 | 2024-05-07 | 广东爱子优旺新材料有限公司 | Zipper bag capable of preventing children from opening |
| US10717564B2 (en) * | 2019-06-26 | 2020-07-21 | Dongguan Xueliang Packaging Materials Co., Ltd. | Child resistant zipper bag |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4335817A (en) * | 1980-02-06 | 1982-06-22 | Talon, Inc. | Easy openable and closable bag with slide fastener |
| US4756629A (en) * | 1987-04-23 | 1988-07-12 | Minigrip, Inc. | System for producing non-compatible zipper film |
| US4848928A (en) * | 1987-04-27 | 1989-07-18 | Minigrip, Inc. | Package with reclosable fin and method |
| US5024537A (en) * | 1990-01-08 | 1991-06-18 | Zip-Pak Incorporated | Tape carried pre-cut zipper |
| US5036643A (en) * | 1990-05-09 | 1991-08-06 | Package Machinery Company, Bodolay/Pratt Division | Form, fill, seal and separate packaging machine for reclosable containers including means for applying zipper to web |
| CA2070937C (en) * | 1991-08-09 | 1998-09-15 | Paul Tilman | Reclosable plastic bags and method of making same utilizing discontinuous zipper profile disposed along a continuous carrier strip |
| US5461845A (en) * | 1992-10-26 | 1995-10-31 | Yeager; James W. | Zippered film and bag |
| US5601368A (en) * | 1995-05-11 | 1997-02-11 | Lakeland Micro, Inc | Tamper-evident container with reclosable fastener and method for making |
-
1996
- 1996-10-29 US US08/740,438 patent/US20020020481A1/en not_active Abandoned
-
1997
- 1997-06-20 AT AT04077774T patent/ATE501942T1/en not_active IP Right Cessation
- 1997-06-20 AT AT97932191T patent/ATE285949T1/en not_active IP Right Cessation
- 1997-06-20 EP EP04077774A patent/EP1495984B1/en not_active Expired - Lifetime
- 1997-06-20 BR BR9712694-2A patent/BR9712694A/en active Search and Examination
- 1997-06-20 DE DE69732146T patent/DE69732146T2/en not_active Expired - Lifetime
- 1997-06-20 AU AU35713/97A patent/AU724759B2/en not_active Ceased
- 1997-06-20 JP JP52043098A patent/JP2002511819A/en active Pending
- 1997-06-20 WO PCT/US1997/010379 patent/WO1998018679A2/en active IP Right Grant
- 1997-06-20 DE DE69740151T patent/DE69740151D1/en not_active Expired - Lifetime
- 1997-06-20 CA CA002270358A patent/CA2270358C/en not_active Expired - Lifetime
- 1997-06-20 EP EP97932191A patent/EP1009672B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1495984A3 (en) | 2005-06-15 |
| ATE501942T1 (en) | 2011-04-15 |
| EP1495984B1 (en) | 2011-03-16 |
| EP1009672A2 (en) | 2000-06-21 |
| AU724759B2 (en) | 2000-09-28 |
| EP1009672B1 (en) | 2004-12-29 |
| CA2270358A1 (en) | 1998-05-07 |
| WO1998018679A3 (en) | 1998-07-09 |
| DE69740151D1 (en) | 2011-04-28 |
| BR9712694A (en) | 2000-03-14 |
| WO1998018679A2 (en) | 1998-05-07 |
| AU3571397A (en) | 1998-05-22 |
| ATE285949T1 (en) | 2005-01-15 |
| EP1009672A4 (en) | 2000-06-21 |
| EP1495984A2 (en) | 2005-01-12 |
| JP2002511819A (en) | 2002-04-16 |
| DE69732146T2 (en) | 2005-09-22 |
| DE69732146D1 (en) | 2005-02-03 |
| US20020020481A1 (en) | 2002-02-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20170620 |