CA1149344A - Closure device for a pouch - Google Patents
Closure device for a pouchInfo
- Publication number
- CA1149344A CA1149344A CA000341368A CA341368A CA1149344A CA 1149344 A CA1149344 A CA 1149344A CA 000341368 A CA000341368 A CA 000341368A CA 341368 A CA341368 A CA 341368A CA 1149344 A CA1149344 A CA 1149344A
- Authority
- CA
- Canada
- Prior art keywords
- closure
- hooks
- pouch
- container
- interior
- 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
Links
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
- B65D33/2541—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 characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/10—Slide fasteners with a one-piece interlocking member on each stringer tape
- A44B19/16—Interlocking member having uniform section throughout the length of the stringer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Refuse Collection And Transfer (AREA)
- Food-Manufacturing Devices (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
CLOSURE DEVICE FOR A POUCH
Abstract of the Disclosure A container comprises a flexible closure device and a pouch portion, and the closure device comprises a first flexible closure strip including a pair of first hooks, and a second flexible closure strip including a pair of second hooks and a ridge positioned to facilitate and maintain the occlusion of the closure strips.
S P E C I F I C A T I O N
Abstract of the Disclosure A container comprises a flexible closure device and a pouch portion, and the closure device comprises a first flexible closure strip including a pair of first hooks, and a second flexible closure strip including a pair of second hooks and a ridge positioned to facilitate and maintain the occlusion of the closure strips.
S P E C I F I C A T I O N
Description
~93~4 The ~nvention relates to a containes and re particularly to a container including interlocking inter-tigitating flexible closure strips.
Generally, containers compr$sing reuseable closure devices and pouches are well-known in the art.
- In addition, manufacturing methods for such containers are ~ell-known in the art. Generally, the coneainers are made from plastic material ant the closure devices and pouches thereof can be made integrally by extrusion as a unitary piece or can be made as separate components which are sub-6equently permanently connected together.
Containers of the type considered herein have wide consumer use a~d usually feature a flexible pouch and a closure dev~ce which can generally withstand st forces which would tend to open the cont~iner by accident. There is a growing need for a container having a recloseable clo-sure tevice which is particularly resistant to accidental opening tue to large forces arising from inside the pouch.
The instant invention provides a container which features a flexible closure device which can be easily opened by forces applied to the closure device along an ex-ternal region intented for that purpose whereas the closure tevice strongly resists being opened by forces arising from pressure within the pouch portion of the container.
The foregoing criteria for a container are met by one embodiment of the present ~nvention which embodiment comprise6 a flexible closure device and a pouch portion in-cluting two side walls and two s~de etges, the closure device compri6ing first and second flexible closure strips arranged 93~s4 ~n confronting relationship to each other and permanently connectet to cach other at the two site edges, the first closure strip having two opposite sides, one side of which is generally flat and connectet to one ~lte wall of the pouc~
portion and the other side of which defines a pair of first ~ooks, each of the first hooks P.xtenting in the tirection of the interior of the pouch portion, the second closure ~trip having two opposite sides, one side of which is ~enerallv flat and connected to the side wall nf the pouch portion and the other side of which defines a ridge and a pair of second hooks, each of the second hooks extend-ing in a direction away from the interior of the pouch por-tion, the pairs of first and second hooks being operable for resiliently engaging and disengaging with each other and the ridge being positioned on the ~ide of the pair of second hooks away from the interior of the pouch portion and being operable to guide the first and second closure strips for occlusion and to maintain the occlusion.
Another embodiment of the invention is the aforementioned container wherein the closure device features the hooks near the interior of the pouch portion having a relatively high negative angle of engagement.
- A further embodiment of the invention is the aforementioned container wherein the hooks near the interior of the pouch portion have a high negative angle of engagement ~nd the other hooks distal from the interior of the pouch por-tion have a relatively positive angle of engagement.
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:
,., . - 3 ' .. , ., . .. , _ , _ ., _ . _ _ . , _ .. .. . .. . . .
~ 3 ~'~
A further embot~ment of the invention is the aforementioned container wherein esch of the closure strips includes a flange portion extending away from the interior of the pouch portion.
A still further embodi~ent of the lnvention $~
the aforementioned container including the clo6ure device wherein the second closure strip includes a flange portion which extends from a region generally oppos~te the first hook which is distal from the interior of the pouch portion 0 60 that forces spplied to the flange portion for disengaging the occluded closure device will be generally displaced from the center of action of the closure strips.
The invention accordingly comprises features of construction, combination of elements and arrangements of parts which will be exemplified in a construction hereinafter set forth and the scope of the ~pplication of which will be indicated in the claims.
Generally, the container of the invention and particularly the closure te~ice, can be made from polyethylene, polypropelene, nylon, or another thermoplastic material or the like or a combination thereof.- The dimensions of the closure tevice would ~ary in accordance with the technology depending upon the materials used because of the vari~tion in physical properties such as moduli.
The container of the invention can be manufac-turet by known methods which lnclude ex~rus~on and the use of molds. The container can be produced by the integral extrusion of the film for the container with the closure etrips. Other nethods include extruding the closure strips ~ 3 ~ ~
onto a preformed film or extruting 2 film onto preformed closure strips. For these methods, the fusion between the film and closure strips results from the hot extrudate ad-herLng to a compatible polymer.
~ nown methods for connecting the closure strips to a plastic film for defining a container ~nclude the use of thermoelectric dev~ces 6uch BS heated rotary discs, or resistance heated slite wires, or tr~elling heater bands, or the like.
The connection between the plastic film and closure strips can also be established by the use of hot melt adhesives, or hot jets of air to the interface or ultrasonic heating, or other known methods.
Another advantage of the present invention is that it can be cleaned and reused more easily than typical prior srt containers intended for the same pusposes ~uch as described in U. S. patent no. 3,054,434 Ausnit et al. This patent requires one of the closure elements to have a hinged connection to the pouch in order to resist high forces from ~he interior of the pouch. This hinge could present diffi-culty in cleaning the container.
~ he present container provides ~any advantages to consumers, particularly because the closure tevice is reusable and yet ~urprisingly is resistant to bein~ openet by relatively large pressures from within the pouch portion.
For a fuller understanding of the ~ature and ob3ects of the invention, reference should be had to the following detailed description; taken in connection with the ~ccompanying drawings, in which:
Fig. 1 is a perspective ~iew of a c~ntainer in accordance with the ~nvention;
Figs. 2A and 2B show diagrammatic and sectional views of Portions of one embo~lment of the ~nven~lon both ~n the unoccluted and occluded state6;
Figs. 3A, 3B, and 3C 6how diagrammatic and 6ectional views of three e~bodiments of the ~nvention;
Fig. 4 6hows a tiagrammatic and ~ectional view of a further embodiment of the invention;
Fig. 5 shows a diagrammatic and sectional view of yet another embodiment of the invention; and Fig. 6 shows a perspective view of a closure device of the invention in the form of tapes or strips.
In carrying the lnvention into effect, certain embodiments have been ~elected for illustration in the accompanying drawings and for description in this specifi-cation, reference being h~d to Fig-. 1 to 6.
.
, .
93~4 Fig. 1 æhows a typical flexible c~ntainer 10 formed frDm a thin, plastic film which h~s been folded at the bottDm pDrtiDn 11 and has been heat sealed alDng the vertical ~ide edges 12 to form a p~ch pDrtiDn 13.
- Side walls 14 extent beyDnd a closure device 16 to provide mouth portions 17 ant 18 t~ ~im,plify the opening of the clDsure device 16.
One embodiment of the invention is shDwn in the open and Dccluded pDSitiDns in Figs. 2A and 2B. A first lt) flexible clDsure strip 19 has first hDDks 20 and 21 defined Dn one side and extending in the directiDn Df the interiDr of a pouch portion 22. A generally flat surface opposite side of the closure strip 19 is connected to a side wall 23.
A secDnd flexible clDsure strip 24 Dn one side has ~ pair Df secDnd hDoks 26 and 27 defined as well as a ridge 28. Ihe 6econd hooks 26 and 27 extend in a direction away from the interior of the pouch pDrtiDn 22 and are operable for res~liently engaging and disengaging with the first hooks 20 and 21 as shown in the Figs. 2A
snd 2B. The ridge 28 is positioned on the 6ide of the second hooks 26 snd 27 away frDm the lnteriDr of ehe pDuch portion 22 and is operable tD guide the closure strips 19 and 24 for occlusion and to maintain occlusion 34~
while permitting disengagement. $hat is, when spreading forces are applied to flanges 29 and 31 the bases 32 and 33 flex to facilitate the disengagement of the closure strips 19 and 24.
The closure strips 19 and 24 are connected by connecting means such as an adhesive to sidewalls 23.
As used herein, the angle of engagement is the angle between a straight line approxima,tely defined by the flat side of the first closure strip and a straight line approximately defined by the contact surfaces of a pair of engaged hooks. Reference is had to Figs. 3A, 3B, and 3C which show various combinations of angles of engagement for different embodiments.
As used herein, a negative angle of engagement occurs when the line defined by the contact ~urfaces of a pair of hooks intersects the line defined by the flat side of the first closure strip on the side of the reference pair of contact surfaces towards the interior of the pouch portion. In Fig. 3A, the angle of engage-ment Al is defined by lines 34 and 36 and is an exampleof a negative angle of engagement.
As used herein, the positive angle of engagement occurs when the line defined by the contact surface~ of a pair of hooks intersects the line defined by the flat side - of the first closure strip on ~he side of the reference pair of Gontact surfaces away from the interior of the pouch portion. In Fig. 3A, the angle of engagement B
. _, . _ .. . _ _ . _ .. _ . _ . ... _ . _ _ .. _ .. _ _ .. _ . . .. . .. . .
~ ~ ~ 9 3 4 ~
is defined by the lines 34 and 37 and is ~ pDsitive angle of engagement.
As used herein, a zerD angle of engagement occurs when the line defined by the contact sur~ce6 Df a pair of hooks ~ntersects the line tefinet by the flat side of the first closure trip remotely and, ideally, if the tWD
lines are paral,el. In Fig. 3B, a zero angle of engagement is indicated by the lines 38 and 39, whereas lines 38 and 41 show a negative angle of engagement, A2.
In Fig. 3C, the angles of engagements A3 and B3 are bDth negative angles of engagement.
It can be readily realizet tbst the fDrce needed tD disengage hooks having a negative angle of engagement $s generally greater than the fDrce necessary to tisengage hDoks ha~ing a zero or positive angle of engagement, It has nDw been realized a relatively high negative angle of engagement can be used for the angle cf engagement between the hooks near the interior of a pouch portion in order to provide an occluded closure device highly resistant to disengagement from f~rces arising from within the pouch pOStiDn. The use, however, of a pDsitive or negative ~ngle of engageme~t for the hooks away ~rom the interior of the pouch i~ conjunction with the afore~entioned relat~vely high negative angle of t3~
engagement surprisingly provides a container which both resists being opened by forces ~rising from the interior of the pouch portion and ~s relatively easy to open by the application of forces at the outside flanges of the closure device.
The opening of an occluded closure device of the invention as shown in Fig. 2B can be analyzed as follows. For forces arising from the interior of the pouch portion 22, the hook 20 tends to rotate into the hook 26 and thereby tends to maintain occlusion. When a person wants to disengage the closure strips 19 and 24, spreading forces are applied to the flanges 29 and 31.
These forces flex bases 32 and 33 so that the ridge 28 is rotated away from the hook 21, thereby allowing the hook 21 to be released from the hook 27 and then the hook 20 rotates out of the hook 26.
Fig. 4 shows another embodiment of the invention in which the closure strips 42 and 43 have been made through separate operations and connected at flanges 44 and 46 to side walls 47 of a pouch portion 48 using connecting means such as an adhesive.
Fig. 5 ~hows an integrally extruded embodiment of the invention which is similar to the embodiment shown in Figs. 2A and 2B but has the additional feature of flange 49 being connected to the base 51 of closure strip 52 50 that forces applied to flange 49 for disengaging closure strips 52 and S3 will be applied below the action line 50 for the closure strips 52 and 53.
121~9 ' ~93~4 This ombDtiment com~ensates for ~ relatively high pos~tive angle of engagement for hooks 54 and 56 which ~re tistal tD the pDuch por~ion 57 ~nd provides the attitional atvantage of $ncreasing the re~i6tance of the closure 6trlps 52 and 53 frDm accidentally opening due to frictiDn or pressure against a relatively filled pouch portion 57.
Fig. 6 shows a perspective view Df the tapes or strips of the invention with flanges for use ln an em'oodiment as shown in Fig. 4. ClDsure strip 58 includes a flange portion 59, while closure stsip 61 inclutes a flange portion 62.
i I wish it tD be understDDd that I dD not desire to be limited to exact details of cDnstruction shown and described, for Dbvious mDdi~ications will occur to a person skilled in the art.
Having thus described the invention, ~h2t I claim as new and desire to be secured by Letters Patent is as - foll3ws:
'' , 11 . ' . .. .
Generally, containers compr$sing reuseable closure devices and pouches are well-known in the art.
- In addition, manufacturing methods for such containers are ~ell-known in the art. Generally, the coneainers are made from plastic material ant the closure devices and pouches thereof can be made integrally by extrusion as a unitary piece or can be made as separate components which are sub-6equently permanently connected together.
Containers of the type considered herein have wide consumer use a~d usually feature a flexible pouch and a closure dev~ce which can generally withstand st forces which would tend to open the cont~iner by accident. There is a growing need for a container having a recloseable clo-sure tevice which is particularly resistant to accidental opening tue to large forces arising from inside the pouch.
The instant invention provides a container which features a flexible closure device which can be easily opened by forces applied to the closure device along an ex-ternal region intented for that purpose whereas the closure tevice strongly resists being opened by forces arising from pressure within the pouch portion of the container.
The foregoing criteria for a container are met by one embodiment of the present ~nvention which embodiment comprise6 a flexible closure device and a pouch portion in-cluting two side walls and two s~de etges, the closure device compri6ing first and second flexible closure strips arranged 93~s4 ~n confronting relationship to each other and permanently connectet to cach other at the two site edges, the first closure strip having two opposite sides, one side of which is generally flat and connectet to one ~lte wall of the pouc~
portion and the other side of which defines a pair of first ~ooks, each of the first hooks P.xtenting in the tirection of the interior of the pouch portion, the second closure ~trip having two opposite sides, one side of which is ~enerallv flat and connected to the side wall nf the pouch portion and the other side of which defines a ridge and a pair of second hooks, each of the second hooks extend-ing in a direction away from the interior of the pouch por-tion, the pairs of first and second hooks being operable for resiliently engaging and disengaging with each other and the ridge being positioned on the ~ide of the pair of second hooks away from the interior of the pouch portion and being operable to guide the first and second closure strips for occlusion and to maintain the occlusion.
Another embodiment of the invention is the aforementioned container wherein the closure device features the hooks near the interior of the pouch portion having a relatively high negative angle of engagement.
- A further embodiment of the invention is the aforementioned container wherein the hooks near the interior of the pouch portion have a high negative angle of engagement ~nd the other hooks distal from the interior of the pouch por-tion have a relatively positive angle of engagement.
.
:
,., . - 3 ' .. , ., . .. , _ , _ ., _ . _ _ . , _ .. .. . .. . . .
~ 3 ~'~
A further embot~ment of the invention is the aforementioned container wherein esch of the closure strips includes a flange portion extending away from the interior of the pouch portion.
A still further embodi~ent of the lnvention $~
the aforementioned container including the clo6ure device wherein the second closure strip includes a flange portion which extends from a region generally oppos~te the first hook which is distal from the interior of the pouch portion 0 60 that forces spplied to the flange portion for disengaging the occluded closure device will be generally displaced from the center of action of the closure strips.
The invention accordingly comprises features of construction, combination of elements and arrangements of parts which will be exemplified in a construction hereinafter set forth and the scope of the ~pplication of which will be indicated in the claims.
Generally, the container of the invention and particularly the closure te~ice, can be made from polyethylene, polypropelene, nylon, or another thermoplastic material or the like or a combination thereof.- The dimensions of the closure tevice would ~ary in accordance with the technology depending upon the materials used because of the vari~tion in physical properties such as moduli.
The container of the invention can be manufac-turet by known methods which lnclude ex~rus~on and the use of molds. The container can be produced by the integral extrusion of the film for the container with the closure etrips. Other nethods include extruding the closure strips ~ 3 ~ ~
onto a preformed film or extruting 2 film onto preformed closure strips. For these methods, the fusion between the film and closure strips results from the hot extrudate ad-herLng to a compatible polymer.
~ nown methods for connecting the closure strips to a plastic film for defining a container ~nclude the use of thermoelectric dev~ces 6uch BS heated rotary discs, or resistance heated slite wires, or tr~elling heater bands, or the like.
The connection between the plastic film and closure strips can also be established by the use of hot melt adhesives, or hot jets of air to the interface or ultrasonic heating, or other known methods.
Another advantage of the present invention is that it can be cleaned and reused more easily than typical prior srt containers intended for the same pusposes ~uch as described in U. S. patent no. 3,054,434 Ausnit et al. This patent requires one of the closure elements to have a hinged connection to the pouch in order to resist high forces from ~he interior of the pouch. This hinge could present diffi-culty in cleaning the container.
~ he present container provides ~any advantages to consumers, particularly because the closure tevice is reusable and yet ~urprisingly is resistant to bein~ openet by relatively large pressures from within the pouch portion.
For a fuller understanding of the ~ature and ob3ects of the invention, reference should be had to the following detailed description; taken in connection with the ~ccompanying drawings, in which:
Fig. 1 is a perspective ~iew of a c~ntainer in accordance with the ~nvention;
Figs. 2A and 2B show diagrammatic and sectional views of Portions of one embo~lment of the ~nven~lon both ~n the unoccluted and occluded state6;
Figs. 3A, 3B, and 3C 6how diagrammatic and 6ectional views of three e~bodiments of the ~nvention;
Fig. 4 6hows a tiagrammatic and ~ectional view of a further embodiment of the invention;
Fig. 5 shows a diagrammatic and sectional view of yet another embodiment of the invention; and Fig. 6 shows a perspective view of a closure device of the invention in the form of tapes or strips.
In carrying the lnvention into effect, certain embodiments have been ~elected for illustration in the accompanying drawings and for description in this specifi-cation, reference being h~d to Fig-. 1 to 6.
.
, .
93~4 Fig. 1 æhows a typical flexible c~ntainer 10 formed frDm a thin, plastic film which h~s been folded at the bottDm pDrtiDn 11 and has been heat sealed alDng the vertical ~ide edges 12 to form a p~ch pDrtiDn 13.
- Side walls 14 extent beyDnd a closure device 16 to provide mouth portions 17 ant 18 t~ ~im,plify the opening of the clDsure device 16.
One embodiment of the invention is shDwn in the open and Dccluded pDSitiDns in Figs. 2A and 2B. A first lt) flexible clDsure strip 19 has first hDDks 20 and 21 defined Dn one side and extending in the directiDn Df the interiDr of a pouch portion 22. A generally flat surface opposite side of the closure strip 19 is connected to a side wall 23.
A secDnd flexible clDsure strip 24 Dn one side has ~ pair Df secDnd hDoks 26 and 27 defined as well as a ridge 28. Ihe 6econd hooks 26 and 27 extend in a direction away from the interior of the pouch pDrtiDn 22 and are operable for res~liently engaging and disengaging with the first hooks 20 and 21 as shown in the Figs. 2A
snd 2B. The ridge 28 is positioned on the 6ide of the second hooks 26 snd 27 away frDm the lnteriDr of ehe pDuch portion 22 and is operable tD guide the closure strips 19 and 24 for occlusion and to maintain occlusion 34~
while permitting disengagement. $hat is, when spreading forces are applied to flanges 29 and 31 the bases 32 and 33 flex to facilitate the disengagement of the closure strips 19 and 24.
The closure strips 19 and 24 are connected by connecting means such as an adhesive to sidewalls 23.
As used herein, the angle of engagement is the angle between a straight line approxima,tely defined by the flat side of the first closure strip and a straight line approximately defined by the contact surfaces of a pair of engaged hooks. Reference is had to Figs. 3A, 3B, and 3C which show various combinations of angles of engagement for different embodiments.
As used herein, a negative angle of engagement occurs when the line defined by the contact ~urfaces of a pair of hooks intersects the line defined by the flat side of the first closure strip on the side of the reference pair of contact surfaces towards the interior of the pouch portion. In Fig. 3A, the angle of engage-ment Al is defined by lines 34 and 36 and is an exampleof a negative angle of engagement.
As used herein, the positive angle of engagement occurs when the line defined by the contact surface~ of a pair of hooks intersects the line defined by the flat side - of the first closure strip on ~he side of the reference pair of Gontact surfaces away from the interior of the pouch portion. In Fig. 3A, the angle of engagement B
. _, . _ .. . _ _ . _ .. _ . _ . ... _ . _ _ .. _ .. _ _ .. _ . . .. . .. . .
~ ~ ~ 9 3 4 ~
is defined by the lines 34 and 37 and is ~ pDsitive angle of engagement.
As used herein, a zerD angle of engagement occurs when the line defined by the contact sur~ce6 Df a pair of hooks ~ntersects the line tefinet by the flat side of the first closure trip remotely and, ideally, if the tWD
lines are paral,el. In Fig. 3B, a zero angle of engagement is indicated by the lines 38 and 39, whereas lines 38 and 41 show a negative angle of engagement, A2.
In Fig. 3C, the angles of engagements A3 and B3 are bDth negative angles of engagement.
It can be readily realizet tbst the fDrce needed tD disengage hooks having a negative angle of engagement $s generally greater than the fDrce necessary to tisengage hDoks ha~ing a zero or positive angle of engagement, It has nDw been realized a relatively high negative angle of engagement can be used for the angle cf engagement between the hooks near the interior of a pouch portion in order to provide an occluded closure device highly resistant to disengagement from f~rces arising from within the pouch pOStiDn. The use, however, of a pDsitive or negative ~ngle of engageme~t for the hooks away ~rom the interior of the pouch i~ conjunction with the afore~entioned relat~vely high negative angle of t3~
engagement surprisingly provides a container which both resists being opened by forces ~rising from the interior of the pouch portion and ~s relatively easy to open by the application of forces at the outside flanges of the closure device.
The opening of an occluded closure device of the invention as shown in Fig. 2B can be analyzed as follows. For forces arising from the interior of the pouch portion 22, the hook 20 tends to rotate into the hook 26 and thereby tends to maintain occlusion. When a person wants to disengage the closure strips 19 and 24, spreading forces are applied to the flanges 29 and 31.
These forces flex bases 32 and 33 so that the ridge 28 is rotated away from the hook 21, thereby allowing the hook 21 to be released from the hook 27 and then the hook 20 rotates out of the hook 26.
Fig. 4 shows another embodiment of the invention in which the closure strips 42 and 43 have been made through separate operations and connected at flanges 44 and 46 to side walls 47 of a pouch portion 48 using connecting means such as an adhesive.
Fig. 5 ~hows an integrally extruded embodiment of the invention which is similar to the embodiment shown in Figs. 2A and 2B but has the additional feature of flange 49 being connected to the base 51 of closure strip 52 50 that forces applied to flange 49 for disengaging closure strips 52 and S3 will be applied below the action line 50 for the closure strips 52 and 53.
121~9 ' ~93~4 This ombDtiment com~ensates for ~ relatively high pos~tive angle of engagement for hooks 54 and 56 which ~re tistal tD the pDuch por~ion 57 ~nd provides the attitional atvantage of $ncreasing the re~i6tance of the closure 6trlps 52 and 53 frDm accidentally opening due to frictiDn or pressure against a relatively filled pouch portion 57.
Fig. 6 shows a perspective view Df the tapes or strips of the invention with flanges for use ln an em'oodiment as shown in Fig. 4. ClDsure strip 58 includes a flange portion 59, while closure stsip 61 inclutes a flange portion 62.
i I wish it tD be understDDd that I dD not desire to be limited to exact details of cDnstruction shown and described, for Dbvious mDdi~ications will occur to a person skilled in the art.
Having thus described the invention, ~h2t I claim as new and desire to be secured by Letters Patent is as - foll3ws:
'' , 11 . ' . .. .
Claims (6)
1. A container comprising a flexible closure device and a pouch portion including two side walls and two side edges;
said closure device comprising first and second flexible closure strips arranged in confronting relationship to each other and permanently connected to each other at the two side edges;
said first closure strip having two opposite sides, one side of said first closure strip consisting essentially of a generally flat base portion connected to one side wall of said pouch portion and the other side of said first closure strip consisting essentially of a pair of first hooks;
each of said first hooks extending in the direction of the interior of said pouch portion;
said second closure strip having two opposite sides, one side of said second closure strip consisting essentially of a generally flat base portion connected to the other side wall of said pouch portion and the other side of said second closure strip consisting essentially of a ridge and a pair of second hooks;
each of said second hooks extending in a direction away from the interior of said pouch portion;
wherein the hooks near the interior of said pouch portion have a negative angle of engagement, and the hooks distal from the interior of said pouch portion have a positive angle of engagement;
said pairs of said first hooks and second hooks being operable for resiliently engaging and disengaging with each other and said ridge being positioned on the side of said pair of second hooks away from the interior of said pouch portion and being operable to guide said first and second closure strips for occlusion and to maintain the occlusion.
said closure device comprising first and second flexible closure strips arranged in confronting relationship to each other and permanently connected to each other at the two side edges;
said first closure strip having two opposite sides, one side of said first closure strip consisting essentially of a generally flat base portion connected to one side wall of said pouch portion and the other side of said first closure strip consisting essentially of a pair of first hooks;
each of said first hooks extending in the direction of the interior of said pouch portion;
said second closure strip having two opposite sides, one side of said second closure strip consisting essentially of a generally flat base portion connected to the other side wall of said pouch portion and the other side of said second closure strip consisting essentially of a ridge and a pair of second hooks;
each of said second hooks extending in a direction away from the interior of said pouch portion;
wherein the hooks near the interior of said pouch portion have a negative angle of engagement, and the hooks distal from the interior of said pouch portion have a positive angle of engagement;
said pairs of said first hooks and second hooks being operable for resiliently engaging and disengaging with each other and said ridge being positioned on the side of said pair of second hooks away from the interior of said pouch portion and being operable to guide said first and second closure strips for occlusion and to maintain the occlusion.
2. The container as claimed in claim 1, wherein each of said closure strips includes a flange portion.
3. The container as claimed in claim 1, wherein said second closure strip includes a flange portion extending away from said pouch portion and which is connected to the base portion of said second closure strip below the action line of the occluded first and second closure strips.
4. The container as claimed in claim 1, wherein said side walls are connected to said closure strips due to integral extrusion.
5. The container as claimed in claim 1, further comprising connecting means for connecting said side walls to said closure strips.
6. The container as claimed in claim 5, wherein said connecting means comprises an adhesive.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US97242878A | 1978-12-22 | 1978-12-22 | |
| US972,428 | 1978-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1149344A true CA1149344A (en) | 1983-07-05 |
Family
ID=25519652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000341368A Expired CA1149344A (en) | 1978-12-22 | 1979-12-06 | Closure device for a pouch |
Country Status (17)
| Country | Link |
|---|---|
| JP (1) | JPS5589068A (en) |
| AU (1) | AU539225B2 (en) |
| BE (1) | BE880742A (en) |
| CA (1) | CA1149344A (en) |
| CH (1) | CH634265A5 (en) |
| DE (1) | DE2948914A1 (en) |
| DK (1) | DK553579A (en) |
| FI (1) | FI64547C (en) |
| FR (1) | FR2444620B1 (en) |
| GB (1) | GB2037704B (en) |
| IE (1) | IE49977B1 (en) |
| IT (1) | IT1120233B (en) |
| MX (1) | MX150370A (en) |
| NL (1) | NL7909264A (en) |
| NO (1) | NO152038C (en) |
| NZ (1) | NZ192489A (en) |
| SE (1) | SE7910476L (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3138510A1 (en) * | 1981-09-28 | 1983-04-21 | Robert 6000 Frankfurt Pete | Pocket-shaped container made from plastic film |
| US4601694A (en) * | 1982-04-16 | 1986-07-22 | Minigrip, Inc. | Thin wall reclosable bag material and method of making same |
| US4479244A (en) * | 1982-09-30 | 1984-10-23 | Steven Ausnit | Easy opening bag |
| US4561109A (en) * | 1982-10-12 | 1985-12-24 | Mobil Oil Corporation | Plastic bags with releasable closure which resists opening from inside |
| US4767220A (en) * | 1983-12-30 | 1988-08-30 | First Brands Corporation | Interlocking closure bar for use in high temperature environment |
| US4922588A (en) * | 1983-12-30 | 1990-05-08 | First Brands Corporation | Single hinge interlocking closure profile configuration |
| US4561108A (en) * | 1983-12-30 | 1985-12-24 | Union Carbide Corporation | Interlocking closure bag for use in high temperature environment |
| JPS61500960A (en) * | 1983-12-30 | 1986-05-15 | ユニオン カ−バイド コ−ポレ−シヨン | Single-hinged interlocking lid construction |
| US4578813A (en) * | 1984-06-11 | 1986-03-25 | Minigrip Incorporated | Bag and reclosable separable fastener assembly providing both closing alignment facility and differential separation resistance |
| US4710968A (en) * | 1985-09-11 | 1987-12-01 | First Brands Corporation | Trident interlocking closure profile configuration |
| JPS6280837U (en) * | 1985-11-08 | 1987-05-23 | ||
| US4736450A (en) * | 1985-11-20 | 1988-04-05 | Minigrip, Inc. | Gusseted bags with reclosure features |
| US4840611A (en) * | 1985-11-20 | 1989-06-20 | Minigrip, Inc. | Gusseted bags with reclosure features |
| CA1268743A (en) * | 1985-12-23 | 1990-05-08 | Steven Ausnit | Extruded zipper strips for bags |
| US4854017A (en) * | 1986-07-22 | 1989-08-08 | First Brands Corporation | Multiposition interlocking closure fastening device |
| JPH0633095B2 (en) * | 1988-09-16 | 1994-05-02 | 株式会社生産日本社 | Synthetic resin film for zipper bag |
| JPH0632335U (en) * | 1992-05-27 | 1994-04-26 | 日本海包装工業株式会社 | Chuck type carrying strap |
| GB9213296D0 (en) * | 1992-06-23 | 1992-08-05 | Hanlex Ltd | Strip closures |
| US5403094A (en) * | 1993-10-06 | 1995-04-04 | Reynolds Consumer Products, Inc. | Reclosable zipper |
| US6138329A (en) * | 1997-01-18 | 2000-10-31 | Illinois Tool Works Inc. | Fastener assembly, fastener tape material, bag utilizing fastener tape material, and method of manufacture thereof |
| FR2817842B1 (en) * | 2000-12-07 | 2003-05-30 | Flexico France Sarl | BAG WITH CLOSING PROFILES, EASY CLOSING |
| US7850368B2 (en) | 2004-06-04 | 2010-12-14 | S.C. Johnson & Son, Inc. | Closure device for a reclosable pouch |
| CN110641823B (en) * | 2019-09-12 | 2022-03-29 | 常州美昇进出口有限责任公司 | Carry-on bag capable of preventing being opened by children and bag opening mode thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB800169A (en) * | 1956-10-19 | 1958-08-20 | Flexigrip Inc | Improvements in or relating to container closures |
| US3054434A (en) * | 1960-05-02 | 1962-09-18 | Ausnit | Bag closure |
| GB994307A (en) * | 1961-11-27 | 1965-06-02 | Seisan Nipponsha Kk | Material for forming plastics bags and bags made therefrom |
| US3172443A (en) * | 1962-02-19 | 1965-03-09 | Ausnit Steven | Plastic fastener |
| US3226787A (en) * | 1962-05-17 | 1966-01-04 | Ausnit Steven | Double extruded fastener strips |
| GB960295A (en) * | 1962-07-05 | 1964-06-10 | Colibri Lighters | Improvements relating to tobacco pouches |
| DE1231882B (en) * | 1964-06-16 | 1967-01-05 | Dr Karlheinz Siegel | Process for producing flexible plastic packaging |
| DE1970647U (en) * | 1967-05-05 | 1967-10-19 | C Robert Knecht Fa | RESERVE MADE OF FLEXIBLE MATERIAL. |
| DE2319690A1 (en) * | 1973-04-18 | 1974-11-14 | Siegel Karl Heinz Dr | METHOD OF MANUFACTURING HANGING PACKAGING |
-
1979
- 1979-12-05 DE DE19792948914 patent/DE2948914A1/en not_active Ceased
- 1979-12-06 CA CA000341368A patent/CA1149344A/en not_active Expired
- 1979-12-11 MX MX180451A patent/MX150370A/en unknown
- 1979-12-13 GB GB7942999A patent/GB2037704B/en not_active Expired
- 1979-12-17 FI FI793939A patent/FI64547C/en not_active IP Right Cessation
- 1979-12-17 JP JP16289179A patent/JPS5589068A/en active Pending
- 1979-12-19 BE BE0/198655A patent/BE880742A/en not_active IP Right Cessation
- 1979-12-19 AU AU54002/79A patent/AU539225B2/en not_active Expired
- 1979-12-19 SE SE7910476A patent/SE7910476L/en not_active Application Discontinuation
- 1979-12-19 IT IT51139/79A patent/IT1120233B/en active
- 1979-12-20 NO NO794203A patent/NO152038C/en unknown
- 1979-12-21 DK DK553579A patent/DK553579A/en not_active Application Discontinuation
- 1979-12-21 IE IE2509/79A patent/IE49977B1/en unknown
- 1979-12-21 CH CH1142179A patent/CH634265A5/en not_active IP Right Cessation
- 1979-12-21 NZ NZ192489A patent/NZ192489A/en unknown
- 1979-12-21 FR FR7931379A patent/FR2444620B1/en not_active Expired
- 1979-12-21 NL NL7909264A patent/NL7909264A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| FI64547C (en) | 1983-12-12 |
| NO152038B (en) | 1985-04-15 |
| NO794203L (en) | 1980-06-24 |
| NL7909264A (en) | 1980-06-24 |
| FR2444620B1 (en) | 1985-12-06 |
| BE880742A (en) | 1980-06-19 |
| IT1120233B (en) | 1986-03-19 |
| JPS5589068A (en) | 1980-07-05 |
| FI793939A (en) | 1980-06-23 |
| GB2037704A (en) | 1980-07-16 |
| AU5400279A (en) | 1980-06-26 |
| SE7910476L (en) | 1980-06-23 |
| FR2444620A1 (en) | 1980-07-18 |
| MX150370A (en) | 1984-04-25 |
| IT7951139A0 (en) | 1979-12-19 |
| IE49977B1 (en) | 1986-01-22 |
| IE792509L (en) | 1980-06-22 |
| DK553579A (en) | 1980-06-23 |
| DE2948914A1 (en) | 1980-06-26 |
| NZ192489A (en) | 1982-05-25 |
| CH634265A5 (en) | 1983-01-31 |
| NO152038C (en) | 1985-07-24 |
| AU539225B2 (en) | 1984-09-20 |
| FI64547B (en) | 1983-08-31 |
| GB2037704B (en) | 1983-05-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |