CA2269652A1 - Bag having a separable opening strip and method of fabricating the same - Google Patents
Bag having a separable opening strip and method of fabricating the same Download PDFInfo
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- CA2269652A1 CA2269652A1 CA 2269652 CA2269652A CA2269652A1 CA 2269652 A1 CA2269652 A1 CA 2269652A1 CA 2269652 CA2269652 CA 2269652 CA 2269652 A CA2269652 A CA 2269652A CA 2269652 A1 CA2269652 A1 CA 2269652A1
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- wall
- opening strip
- separable opening
- bag
- strip
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Abstract
A bag having a separable opening strip within at least one wall of the bag is provided. The separable opening strip is defined end bounded by a frangible boundary comprising s weakened path within the wall of the bag. The weakened path may be formed by perforating the bag wall. The weakened boundary and the separable opening strip are such that, when the separable opening strip is pulled in a direction outward from the bag wall, the separable opening strip separates from the wall along the frangible boundary. A flexible strip of tape having an adhesive surface is further provided and adhered over the separable opening strip such that it covers the separable opening strip and extends to the outside of the frangible boundary.
When the strip of tape is pulled in a direction outward from the bag wall, the separable opening strip remains adhered to the tape and separates from the wall as previously described. The tape is preferably waterproof so that when it is adhered to the bag wall over the separable opening strip, it prevents water from entering the bag through the frangible boundary. The tape may also be used to reseal the bag.
When the strip of tape is pulled in a direction outward from the bag wall, the separable opening strip remains adhered to the tape and separates from the wall as previously described. The tape is preferably waterproof so that when it is adhered to the bag wall over the separable opening strip, it prevents water from entering the bag through the frangible boundary. The tape may also be used to reseal the bag.
Description
fIELD Of THE INVENTION
The invention relates to s bag and a method of forming a bag which can be opened easily.
BACKQROUND Of THE INVENTION
Seated bags are often used for storing and transporting materials such ss ,~ peat moss, clay, fertilizer, pet food and the like. 'To remove the contents of the bag -it is necessary to open the bag using 8 knife or other instrument.
It is well-known to provide bag8 which may be opened easily and safely without using a knife. United States Patent 6,375.930 to Tani describes an easily op~nable synthetic resin bag comprising s bag body having front and rear walls. A
tear string with sn ear portion is heat sealed on the inner side of the rear wall along an opening tine. To open the bag the asr portion is gripped and pulled away from the bag taking the tear string with it to open the bag along the opening line, United States Patent 6,118,140 to Hirashima also describes a bag having a tear string heat sealed on the inside of one of the walls of the bag. The bag also includes means to keep the tear string on the bag body after the bag is opened.
The arrangements described a above are suitable for bags made of a thin materia) such as plastic film or paper which is easy to tear. Where the bag is made of ~ heavier material such ss synthetic resin and fibrous material such as hemp, glass fiber, asbestos and the like the bag is more difficult to tear and the arrangements described above do not work so wef t.
SUMMARY Of THE INVENTION
In broad terms the invention comprises a bag having st least one side wall. At (east one of the at least one side walls includes a separable opening strip defined and bounded by a frangible boundary. Most frequently, the frangible boundary is formed by weakening the side wall of the bag along two substantially parallel edges that are substantially equal in length and along a joining segment to join the edges at one and. There are, of course, numerous possible alternative configurations including, far example, having the frangible boundary comprise a pair of convergent edges the join at one end to form a "V", in which case the joining segment would not be necessary.
~' - A method aspect of the invention includes the steps of providing a material -from which to form the bag; forming the bag such that it has at least one side wall;
and forming in the at feast one aide wall a frangible boundary to define a separable opening strip.
BRIEF DESCRIPTION OP THE DRAWiN~38 The invention wilt be further described with reference to the accompanying drawings in which:
FIG. 1 is a prospective view of one fomn of the bag having a vertical separable opening strip bounded by a frangible boundary;
FIG 1 A is a view of a cylindrical bag having a separable opening strip bounded by a frangible boundary;
FIGS. 1 B through 1 E illustrate verioue configurations ~ of the frangible boundary defining the separable opening strip;
FIG. 2 is a prospeotive view of another form of the bag having a vertical separable opening strip bounded by a frangible boundary;
FIG. 3 is a prospective view of one form of the beg having two horizontal separable opening strips;
FIG. 4 is a prospective view of another form of the bag having two horizontal separable opening strips;
FIG. 6 is a side elovation view of the bag shown in FIO. 1, DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to FIG. 1, there is shown a preferred embodiment of a bag having a separable opening strip 10 (hereinafter, the "bag i0"). The particular embodiment of the bag 10 shown in the figures has opposed side wells 14 and 1B. It will be appreciated that the bop 10 may also have additional stde walls 18 en'd/or a bottom wall 20 interposed between side waNs 14 and 16. Furthermore, a bag 10 having a .
,' single Bide wail is possible where, for exempla, a single cylindrlcel side wall 22 is -provided with top and bottom wails 24 end 26 ea shown in FIG. 1 A, in any event, the number of wells the bag 10 has is not particularly pertinent as will be mare fully appreciated further in the description. The beg 10 is preferably formed from a synthetic resin and fibrous material such as hemp, glass fiber, asbestos or the like and suitable for storing and transporting peat moss, clay, fertilizer, pet food and the like. It is also preferred that the bag 10 be waterproof so as to inaulata its contents from moisture originating from sources external to the beg 10.
Tha wall 14 of the bag 10 in FIGS. 1 and 2 through 5 is bounded by four boundsries 14s, 14b, 14o and 14d. In the case of a cylindrical well 22 as shown in FIG. 1 A, there may only be two boundaries 22a end 22b; however, for purposes of illustrating the principles of the invention, reference is made to the wall 14 which has four boundaries. The point to be eppraclatsd further in this dssoriptlon with regard to the location of a separable opening strip 30 is that it is preferably located entirely within the boundaries of a single well no matter how many boundaries thst wall has. The wall 14 is provided with a saparebla opening strip 30 bounded by a frangible boundary 34. Tha frangible boundary 34 is located within the confines of the borders l4s,b,o and d of side wall 14. Although designations of orientafion such as top and bottom ere entirely arbitrary, for the purposes of clarity, border 14a is regarded as the top border; 14b, the left border; 140, the right border and 14d, the bottom border. The frangible boundary 34 is formed preferably by weakening the wall 14 along a path that includes two substantially parallel elongated edges 38 and 37 having first ends 38a and 37a end second ends 38b and 37b, respectively. The edges 38 and 37 are joined by a joining segment 40 that joins the edges 3B and 37 at at feast one of each of their ends. For example, the joining segment 40 may join ends 38b and 37b as shown in Fl4. 1, ends 38a and 37a or a joining segment 40 may join both sets of ends 38a and 37a and 38b end 37b as shown in FIG. 1 B.
- As shown in FIG. 1, the edges 38 and 37 of the frangible boundary 30 are preferably substantially equal in length and aligned with one another on the wall 14.
The weakening of the wall 14 to create the frangible boundary 34 is preferably accomplished by perforating the wall 14 along a path that defines the shape of the frangible boundary 34. However. 'rt will be appreciated that the wall 14 could be weakened in other ways including by applying one or more score lines or one or more cuts to define the frangible boundary 34. Furthermore, depending on the material from which the beg 10 is fabricated, a weakened region defining the frangible boundary 34 could be formed contemporaneously with the formation of the plastic sheet from which wall 14 is made. For example, if the bag 10 were fabricated from a heavy plastic, the frangible boundary 34. oouid be formed right in the sheet of plastic as the sheet of plastic is being formed.
The frangible boundary 34 defining the separable opening strip 30 may be of numerous configurations. It has previously been stated that the preferred configuration includoa two substantially parallel edges 36 and 37 joined by a joining segment 40 that joins the edges 38 and 37 at at (east one of each of their ends 3Ba end 38b and 37a and 37b. While the preferred Joining segment 40 is V-shaped ae shown in FIG. 1, other possible shapes include semi-circular or simply a straight line segment extending perpendicularly between edges 38 and 37, for oxample, as shown in FIGS. 1 C end 7 D, respectively. Furthermore, although there are certain advantepes to aligning the edges 36 and 37 in substantially parallel alignment, it is not essential to so align them; for instance, they could be linear, but converge themselves and join to form a V-shaped frangible boundary 30, in which case the joining segment 40 would be unnecessary. See FIG. 1 E.
. The bag 10 may further comprise a strip of taps 60 adhered to the side wall 14 by a suitable, known adhesive 64. As shown in FiG. 1 and others, the tape may cover and overlap the separable opening strip 30, and extend in all directions to -the outside of the frangible boundary 34. Preferably, the tape 60 is formed of a flexible plastic material that is water impermeable, and includes an sdhssive 64 that is water resistant, so as to prevent water from entering the beg 10 through the frangible boundary 34. Furthermore, the tape 60 and the adhesive 64 by which it is adhered to the bag 10 should be resistant to high and low temperatures so as to be capable of preventing moisture tram entering the bag 10 under various anvirqnmental conditions such as might be incurred outdoors.
The tape BO may further comprise a pull-tab 68 extending outwardly from the wall 14, as particularly shown in FIG. 5. Ths preferred pull-tab 68 is of the same width as the tape 60 and may be formed of paper or cellophane. Alternatively, the pull-tab 68 may comlxiae a section of the taps 60 which is not adhered to the wall 14. As shown in FIG. 1, it is preferred that the tape 60 be oriented so that the pull-tab 68 is adjacent the joining segment 40 of the frangible boundary 34, where applicable. Where there is no joining segment 40. it is prefsrrod that the pull-tab 68 be adjacent to the point where the edges 3d and 37 of the frangible boundary converge. If the edges 3B and 37 are joined at both sets of their ends 38a and 37a and 38b and 37b, either by joining segments 44 or by convergence, a pull-tab may be provided adjacent either or both sets of ends 36a end 37a and 38b end 37b.
To open the bag 10 using separable opening strip 30. the pull-tab 68 is gripped and pulled outwardly from the wall 14. As the pull-tab 18 is pulled away from the wall 14, the strip of tape fi0 separates from the wall 14. The separable opening strip 30, however, remains adhered to the tape 60 and separates from the wall 14 along the frangible boundary 34 creating an opening in the bag 10 between the edges and 37. Optionally, to facilitate this aspect of the invention, the tape 60 could ba adhered or otherwise attached to the separable opening strip 30 by means of a stronger adhesive such as glue, for example, than the adhesive by which the ~' Temaindar of the tape 60 is adhered to the side wall 14 to the outside of the frangible -boundary 34.
it is envisaged that the orientation, placement end number of separable opening strips 30 may be altered. Figure 7 shows a vert~cal~y onentea separaa~e opening strip 30 having a tape 80 in which the pull-tab 68 is located above the separable openin8 strip 30. As shown in Figure 2, the pull-tab 68 may be placed below the separable opening strip 30.
Figures 3 and 4 show a eltametive arrangements in which the separable opening strip 30 is positioned horizontally across the side wall 14 of the beg 10. In Figure 3, the pull-tab 68 of the strip of tape 60 Is positioned to the Isft of the separable opening strip 30 whereas in Figure 4, the pull-tab 68 is positioned to the right of ~e separable opening strip 30. As shown in both Figures 3 and 4, the side well 14 maY be provided with a plurality (at Isast twal separable opening strips 30.
tt will be appreciated that tha number of separable opening strips 30 may exceed two, and that the separable opening strip(si 30 may be poattloned along the top of tha bag or the base wall of the bag as an addition or en alternative to one or more of the side walls.
The invention relates to s bag and a method of forming a bag which can be opened easily.
BACKQROUND Of THE INVENTION
Seated bags are often used for storing and transporting materials such ss ,~ peat moss, clay, fertilizer, pet food and the like. 'To remove the contents of the bag -it is necessary to open the bag using 8 knife or other instrument.
It is well-known to provide bag8 which may be opened easily and safely without using a knife. United States Patent 6,375.930 to Tani describes an easily op~nable synthetic resin bag comprising s bag body having front and rear walls. A
tear string with sn ear portion is heat sealed on the inner side of the rear wall along an opening tine. To open the bag the asr portion is gripped and pulled away from the bag taking the tear string with it to open the bag along the opening line, United States Patent 6,118,140 to Hirashima also describes a bag having a tear string heat sealed on the inside of one of the walls of the bag. The bag also includes means to keep the tear string on the bag body after the bag is opened.
The arrangements described a above are suitable for bags made of a thin materia) such as plastic film or paper which is easy to tear. Where the bag is made of ~ heavier material such ss synthetic resin and fibrous material such as hemp, glass fiber, asbestos and the like the bag is more difficult to tear and the arrangements described above do not work so wef t.
SUMMARY Of THE INVENTION
In broad terms the invention comprises a bag having st least one side wall. At (east one of the at least one side walls includes a separable opening strip defined and bounded by a frangible boundary. Most frequently, the frangible boundary is formed by weakening the side wall of the bag along two substantially parallel edges that are substantially equal in length and along a joining segment to join the edges at one and. There are, of course, numerous possible alternative configurations including, far example, having the frangible boundary comprise a pair of convergent edges the join at one end to form a "V", in which case the joining segment would not be necessary.
~' - A method aspect of the invention includes the steps of providing a material -from which to form the bag; forming the bag such that it has at least one side wall;
and forming in the at feast one aide wall a frangible boundary to define a separable opening strip.
BRIEF DESCRIPTION OP THE DRAWiN~38 The invention wilt be further described with reference to the accompanying drawings in which:
FIG. 1 is a prospective view of one fomn of the bag having a vertical separable opening strip bounded by a frangible boundary;
FIG 1 A is a view of a cylindrical bag having a separable opening strip bounded by a frangible boundary;
FIGS. 1 B through 1 E illustrate verioue configurations ~ of the frangible boundary defining the separable opening strip;
FIG. 2 is a prospeotive view of another form of the bag having a vertical separable opening strip bounded by a frangible boundary;
FIG. 3 is a prospective view of one form of the beg having two horizontal separable opening strips;
FIG. 4 is a prospective view of another form of the bag having two horizontal separable opening strips;
FIG. 6 is a side elovation view of the bag shown in FIO. 1, DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to FIG. 1, there is shown a preferred embodiment of a bag having a separable opening strip 10 (hereinafter, the "bag i0"). The particular embodiment of the bag 10 shown in the figures has opposed side wells 14 and 1B. It will be appreciated that the bop 10 may also have additional stde walls 18 en'd/or a bottom wall 20 interposed between side waNs 14 and 16. Furthermore, a bag 10 having a .
,' single Bide wail is possible where, for exempla, a single cylindrlcel side wall 22 is -provided with top and bottom wails 24 end 26 ea shown in FIG. 1 A, in any event, the number of wells the bag 10 has is not particularly pertinent as will be mare fully appreciated further in the description. The beg 10 is preferably formed from a synthetic resin and fibrous material such as hemp, glass fiber, asbestos or the like and suitable for storing and transporting peat moss, clay, fertilizer, pet food and the like. It is also preferred that the bag 10 be waterproof so as to inaulata its contents from moisture originating from sources external to the beg 10.
Tha wall 14 of the bag 10 in FIGS. 1 and 2 through 5 is bounded by four boundsries 14s, 14b, 14o and 14d. In the case of a cylindrical well 22 as shown in FIG. 1 A, there may only be two boundaries 22a end 22b; however, for purposes of illustrating the principles of the invention, reference is made to the wall 14 which has four boundaries. The point to be eppraclatsd further in this dssoriptlon with regard to the location of a separable opening strip 30 is that it is preferably located entirely within the boundaries of a single well no matter how many boundaries thst wall has. The wall 14 is provided with a saparebla opening strip 30 bounded by a frangible boundary 34. Tha frangible boundary 34 is located within the confines of the borders l4s,b,o and d of side wall 14. Although designations of orientafion such as top and bottom ere entirely arbitrary, for the purposes of clarity, border 14a is regarded as the top border; 14b, the left border; 140, the right border and 14d, the bottom border. The frangible boundary 34 is formed preferably by weakening the wall 14 along a path that includes two substantially parallel elongated edges 38 and 37 having first ends 38a and 37a end second ends 38b and 37b, respectively. The edges 38 and 37 are joined by a joining segment 40 that joins the edges 3B and 37 at at feast one of each of their ends. For example, the joining segment 40 may join ends 38b and 37b as shown in Fl4. 1, ends 38a and 37a or a joining segment 40 may join both sets of ends 38a and 37a and 38b end 37b as shown in FIG. 1 B.
- As shown in FIG. 1, the edges 38 and 37 of the frangible boundary 30 are preferably substantially equal in length and aligned with one another on the wall 14.
The weakening of the wall 14 to create the frangible boundary 34 is preferably accomplished by perforating the wall 14 along a path that defines the shape of the frangible boundary 34. However. 'rt will be appreciated that the wall 14 could be weakened in other ways including by applying one or more score lines or one or more cuts to define the frangible boundary 34. Furthermore, depending on the material from which the beg 10 is fabricated, a weakened region defining the frangible boundary 34 could be formed contemporaneously with the formation of the plastic sheet from which wall 14 is made. For example, if the bag 10 were fabricated from a heavy plastic, the frangible boundary 34. oouid be formed right in the sheet of plastic as the sheet of plastic is being formed.
The frangible boundary 34 defining the separable opening strip 30 may be of numerous configurations. It has previously been stated that the preferred configuration includoa two substantially parallel edges 36 and 37 joined by a joining segment 40 that joins the edges 38 and 37 at at (east one of each of their ends 3Ba end 38b and 37a and 37b. While the preferred Joining segment 40 is V-shaped ae shown in FIG. 1, other possible shapes include semi-circular or simply a straight line segment extending perpendicularly between edges 38 and 37, for oxample, as shown in FIGS. 1 C end 7 D, respectively. Furthermore, although there are certain advantepes to aligning the edges 36 and 37 in substantially parallel alignment, it is not essential to so align them; for instance, they could be linear, but converge themselves and join to form a V-shaped frangible boundary 30, in which case the joining segment 40 would be unnecessary. See FIG. 1 E.
. The bag 10 may further comprise a strip of taps 60 adhered to the side wall 14 by a suitable, known adhesive 64. As shown in FiG. 1 and others, the tape may cover and overlap the separable opening strip 30, and extend in all directions to -the outside of the frangible boundary 34. Preferably, the tape 60 is formed of a flexible plastic material that is water impermeable, and includes an sdhssive 64 that is water resistant, so as to prevent water from entering the beg 10 through the frangible boundary 34. Furthermore, the tape 60 and the adhesive 64 by which it is adhered to the bag 10 should be resistant to high and low temperatures so as to be capable of preventing moisture tram entering the bag 10 under various anvirqnmental conditions such as might be incurred outdoors.
The tape BO may further comprise a pull-tab 68 extending outwardly from the wall 14, as particularly shown in FIG. 5. Ths preferred pull-tab 68 is of the same width as the tape 60 and may be formed of paper or cellophane. Alternatively, the pull-tab 68 may comlxiae a section of the taps 60 which is not adhered to the wall 14. As shown in FIG. 1, it is preferred that the tape 60 be oriented so that the pull-tab 68 is adjacent the joining segment 40 of the frangible boundary 34, where applicable. Where there is no joining segment 40. it is prefsrrod that the pull-tab 68 be adjacent to the point where the edges 3d and 37 of the frangible boundary converge. If the edges 3B and 37 are joined at both sets of their ends 38a and 37a and 38b and 37b, either by joining segments 44 or by convergence, a pull-tab may be provided adjacent either or both sets of ends 36a end 37a and 38b end 37b.
To open the bag 10 using separable opening strip 30. the pull-tab 68 is gripped and pulled outwardly from the wall 14. As the pull-tab 18 is pulled away from the wall 14, the strip of tape fi0 separates from the wall 14. The separable opening strip 30, however, remains adhered to the tape 60 and separates from the wall 14 along the frangible boundary 34 creating an opening in the bag 10 between the edges and 37. Optionally, to facilitate this aspect of the invention, the tape 60 could ba adhered or otherwise attached to the separable opening strip 30 by means of a stronger adhesive such as glue, for example, than the adhesive by which the ~' Temaindar of the tape 60 is adhered to the side wall 14 to the outside of the frangible -boundary 34.
it is envisaged that the orientation, placement end number of separable opening strips 30 may be altered. Figure 7 shows a vert~cal~y onentea separaa~e opening strip 30 having a tape 80 in which the pull-tab 68 is located above the separable openin8 strip 30. As shown in Figure 2, the pull-tab 68 may be placed below the separable opening strip 30.
Figures 3 and 4 show a eltametive arrangements in which the separable opening strip 30 is positioned horizontally across the side wall 14 of the beg 10. In Figure 3, the pull-tab 68 of the strip of tape 60 Is positioned to the Isft of the separable opening strip 30 whereas in Figure 4, the pull-tab 68 is positioned to the right of ~e separable opening strip 30. As shown in both Figures 3 and 4, the side well 14 maY be provided with a plurality (at Isast twal separable opening strips 30.
tt will be appreciated that tha number of separable opening strips 30 may exceed two, and that the separable opening strip(si 30 may be poattloned along the top of tha bag or the base wall of the bag as an addition or en alternative to one or more of the side walls.
Claims (9)
1. A bag having a separable opening strip comprising:
at least one wall; and a separable opening strip located within at least one of the at least one walls and defined by an elongated frangible boundary, the frangible boundary comprising a weakened path within the wall such that when the separable opening strip is pulled in a direction outward from the wall, it will separate from the wall along the frangible boundary.
at least one wall; and a separable opening strip located within at least one of the at least one walls and defined by an elongated frangible boundary, the frangible boundary comprising a weakened path within the wall such that when the separable opening strip is pulled in a direction outward from the wall, it will separate from the wall along the frangible boundary.
2. The invention of claim 1 wherein the elongated frangible boundary further comprises two elongated, transversely spaced, substantially parallel edges that are substantially equal in length, each edge having a first end and a second and and being joined to the other edge at et least one of its first and second ends by a joining segment.
3. The invention of claim 2 wherein the joining segment is V-shaped.
4. The invention of claim 1 wherein the elongated frangible boundary further comprises a pair of elongated, linear edges, each edge having a first end and a second end, the linear edges converging end being joined at at least one of each of their ends.
5. The invention of claim 1 wherein the frangible boundary around the separable opening strip comprises perforations in the wall.
6. The invention of claim 1 wherein the frangible boundary around the separable opening strip comprises one or more score lines in the wall.
7. The invention of claim 1 wherein the frangible boundary around the separable opening strip comprises one or more cuts in the wall.
8. The invention of claim 1 further comprising a flexible strip of tape having an adhesive surface adhered to the well end covering the separable opening strip such that when the tape is pulled in a direction outward from the wall, it separates from the wall but remains adhered to the separable opening strip so that the separable opening strip separates from the well along the frangible boundary.
8. The invention of claim 8 wherein the strip of tape includes a non-adhesive pull-tab for gripping and pulling in a direction outward from the wall by one desiring to open the bag.
10. The invention of claim 8 wherein the strip of tape is attached to the separable opening strip more securely than it is adhered to the wall outside of the frangible boundary so as to facilitate the separation of the separable opening strip from the wall by pulling on the strip of tape in a direction outward from the wall.
11. A bag having a separable opening strip comprising:
at least one aide wall having at least two borders;
a separable opening strip located within the borders of at least one of the at least one side walls and defined by a frangible boundary, the frangible boundary comprising a weakened path within the side wall and including two transversely spaced, substantially parallel edges that are substantially equal in length, each edge having a first end and a second end and being joined to the other edge at at least one of its first and second ends by a joining segment such that when the separable opening strip is pulled in a direction outward from the side wall, it will separate from the side wall along the frangible boundary; and a flexible strip of tape having en adhesive surface adhered to the wall and covering the separable opening strip such that when the tape is pulled in a direction outward from the wall, it separates from the wall but remains adhered to the separable opening strip so that the separable opening strip separates from the wall along the frangible boundary.
12. A method of forming a bag having at least one wall that includes a separable opening strip comprising the steps of:
providing a material from which to form the bag;
forming the bag such that it has at least one wall; and forming in the at least one wall an elongated frangible boundary to define a separable opening strip.
8. The invention of claim 8 wherein the strip of tape includes a non-adhesive pull-tab for gripping and pulling in a direction outward from the wall by one desiring to open the bag.
10. The invention of claim 8 wherein the strip of tape is attached to the separable opening strip more securely than it is adhered to the wall outside of the frangible boundary so as to facilitate the separation of the separable opening strip from the wall by pulling on the strip of tape in a direction outward from the wall.
11. A bag having a separable opening strip comprising:
at least one aide wall having at least two borders;
a separable opening strip located within the borders of at least one of the at least one side walls and defined by a frangible boundary, the frangible boundary comprising a weakened path within the side wall and including two transversely spaced, substantially parallel edges that are substantially equal in length, each edge having a first end and a second end and being joined to the other edge at at least one of its first and second ends by a joining segment such that when the separable opening strip is pulled in a direction outward from the side wall, it will separate from the side wall along the frangible boundary; and a flexible strip of tape having en adhesive surface adhered to the wall and covering the separable opening strip such that when the tape is pulled in a direction outward from the wall, it separates from the wall but remains adhered to the separable opening strip so that the separable opening strip separates from the wall along the frangible boundary.
12. A method of forming a bag having at least one wall that includes a separable opening strip comprising the steps of:
providing a material from which to form the bag;
forming the bag such that it has at least one wall; and forming in the at least one wall an elongated frangible boundary to define a separable opening strip.
9 13. The invention of claim 12 wherein the step of forming the elongated frangible boundary includes the steps of forming within the wall two elongated, transversely spaced, substantially parallel edges that are substantially equal in length, each edge having a first end and a second end and being joined to the other edge at at least one of its first and second ends by a joining segment.
14. The invention of claim 12 further including the steps of providing a flexible strip of tape having an adhesive surface and adhering it to the wall to cover the separable opening strip such that when the tape is pulled in a direction outward from the wall, it separates from the wall but remains adhered to separable opening strip so that the separable opening strip separates from the wall along the frangible boundary.
14. The invention of claim 12 further including the steps of providing a flexible strip of tape having an adhesive surface and adhering it to the wall to cover the separable opening strip such that when the tape is pulled in a direction outward from the wall, it separates from the wall but remains adhered to separable opening strip so that the separable opening strip separates from the wall along the frangible boundary.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10318272A JP2000109098A (en) | 1998-10-06 | 1998-10-06 | Opening device with perforation and adhesive tape in packaging bag |
| JP10-318272 | 1998-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2269652A1 true CA2269652A1 (en) | 2000-04-06 |
Family
ID=18097361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2269652 Abandoned CA2269652A1 (en) | 1998-10-06 | 1999-04-22 | Bag having a separable opening strip and method of fabricating the same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2000109098A (en) |
| CA (1) | CA2269652A1 (en) |
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| WO2005051788A1 (en) * | 2003-11-28 | 2005-06-09 | Sealed Air (Nz) | Bag having a weakening in wall with overlying strip |
| US20160368683A1 (en) * | 2012-02-13 | 2016-12-22 | Polytex Fibers Corporation | Methods of Making Easy Open Plastic Bags |
| US9669983B2 (en) | 2014-04-04 | 2017-06-06 | Polytex Fibers Corporation | Woven plastic bags with features that reduce leakage, breakage and infestations |
| US9669981B2 (en) | 2012-02-13 | 2017-06-06 | Polytex Fibers Corporation | Easy open plastic bags |
| US9731868B2 (en) | 2012-10-12 | 2017-08-15 | Polytex Fibers Corporation | Polymeric bags with easy access features attached to the bags without adhesives |
| US9926106B2 (en) | 2013-01-22 | 2018-03-27 | Polytex Fibers Corporation | Easy access woven plastic bags |
| US9969529B2 (en) | 2012-02-13 | 2018-05-15 | Polytex Fibers Corporation | Easy open plastic bags |
| US10562689B2 (en) | 2012-02-13 | 2020-02-18 | Polytex Fibers Corporation | Woven plastic bags with features that reduce leakage, breakage and infestations |
| US10661963B2 (en) | 2014-04-04 | 2020-05-26 | Polytex Fibers Corporation | Peelable easy open plastic bags |
| US11305927B2 (en) | 2014-04-04 | 2022-04-19 | Polytex Fibers Llc | Easy open plastic bags |
| US11459157B2 (en) | 2012-02-13 | 2022-10-04 | Polytex Fibers Llc | Woven plastic bags with features that reduce leakage, breakage and infestations |
| US11472622B2 (en) | 2014-04-04 | 2022-10-18 | Polytex Fibers Llc | Woven plastic bags with features that reduce leakage, breakage, and infestations |
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|---|---|---|---|---|
| KR20040082367A (en) * | 2004-09-07 | 2004-09-24 | 박상철 | The cutting sticker added wrap vinyl |
| DE102008018121A1 (en) * | 2008-04-09 | 2009-10-15 | Lemo Maschinenbau Gmbh | packing bags |
| WO2013027086A1 (en) * | 2011-08-23 | 2013-02-28 | 葆达实业有限公司 | Waterproof storage bag |
| KR200477976Y1 (en) * | 2014-01-02 | 2015-08-11 | 연세대학교 원주산학협력단 | Appliances box |
| JP7018730B2 (en) * | 2017-09-22 | 2022-02-14 | 株式会社フジシール | Labels and labeled containers |
-
1998
- 1998-10-06 JP JP10318272A patent/JP2000109098A/en active Pending
-
1999
- 1999-04-22 CA CA 2269652 patent/CA2269652A1/en not_active Abandoned
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| FZDE | Dead |