CA1302973C - Reclosable bag and sealing strip for use therein - Google Patents
Reclosable bag and sealing strip for use thereinInfo
- Publication number
- CA1302973C CA1302973C CA000515886A CA515886A CA1302973C CA 1302973 C CA1302973 C CA 1302973C CA 000515886 A CA000515886 A CA 000515886A CA 515886 A CA515886 A CA 515886A CA 1302973 C CA1302973 C CA 1302973C
- Authority
- CA
- Canada
- Prior art keywords
- strip
- flap
- strips
- front piece
- adjacent
- 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
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
- B65D33/18—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps
- B65D33/22—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps using heat-activatable adhesive
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
-
- 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
- B65D33/24—End- or aperture-closing arrangements or devices using self-locking integral or attached closure elements, e.g. flaps
-
- 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
- B65D2313/00—Connecting or fastening means
- B65D2313/02—Connecting or fastening means of hook-and-loop type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
Abstract
RECLOSABLE BAG AND SEALING STRIP FOR USE THEREIN
BACKGROUND OF THE INVENTION
ABSTRACT
A tamperproof, resealable bag of the type used to sell and store materials such as dog food, and the like. A unique sealing strip of the hook and loop fastening variety is employed therein. The bag is a flexible, frangible material such as paper and includes a flap extending from the rear edge over the front edge and down along the front piece. A strip of adhesive is disposed along the bottom edge of the flap to secure it to the front piece. A piece of cording is disposed between the flap and the front piece adjacent the top of the adhesive strip with an end extending outward therefrom for gripping. The two strips comprising the hook and loop fastening system are disposed between the flap and the front piece above and adjacent to the cording with one of the strips adhesively attached to the flap and the other to the front piece of the bag. When the cording is pulled across the flap, the flap is fractured and separated along the line close adjacent the lower edge of the strip so that thereafter the outer one of the strips can be gripped to pull the pair of strips out of attachment to one another without pulling the flap apart from its adhesive attachment to its strip. In the preferred embodiment, the strips include an area adjacent the bottom edge where the hooks are not included such that the strips can be rolled apart for gripping.
BACKGROUND OF THE INVENTION
ABSTRACT
A tamperproof, resealable bag of the type used to sell and store materials such as dog food, and the like. A unique sealing strip of the hook and loop fastening variety is employed therein. The bag is a flexible, frangible material such as paper and includes a flap extending from the rear edge over the front edge and down along the front piece. A strip of adhesive is disposed along the bottom edge of the flap to secure it to the front piece. A piece of cording is disposed between the flap and the front piece adjacent the top of the adhesive strip with an end extending outward therefrom for gripping. The two strips comprising the hook and loop fastening system are disposed between the flap and the front piece above and adjacent to the cording with one of the strips adhesively attached to the flap and the other to the front piece of the bag. When the cording is pulled across the flap, the flap is fractured and separated along the line close adjacent the lower edge of the strip so that thereafter the outer one of the strips can be gripped to pull the pair of strips out of attachment to one another without pulling the flap apart from its adhesive attachment to its strip. In the preferred embodiment, the strips include an area adjacent the bottom edge where the hooks are not included such that the strips can be rolled apart for gripping.
Description
~302973 RECLOSABLE BAG AND SEALING STRIP FOR USE_THEREIN
BACKGROUND OF THE INVENTION
The present invention relates to resealable bags, and, more particularly, to a bag of a flexible, frangible material, including a bottom, opposed spaced sides, and opposed spaced front and rear pieces terminating at the top and front and rear edges respectively, wherein tamperproof resealability is provided by a flap of the flexible, frangible material extending from the rear edge over the front edge and down along the front piece; a strip of adhesive disposed along the bottom edge of the flap to secure it to the front piece; a piece of cording disposed between the flap and the front piece adjacent the top of the adhesive strip with at least one end extending from between the flap and the front piece sufficiently for gripping; and, a pair of strips of a hook and loop fastening system disposed between the flap and the front piece above and adjacent to the cording with one of the pair of strips adhesively attached to the flap and the other of the pair of strips adhesively attached to the front piece whereby when the cording is pulled across the flap, the flap between the pair of strips and the strip of adhesive is fractured and ~30Zg73 separated along a line close adjacent the lower edge of the strip so that thereafter the one of the pair of strips can be gripped to pull the one of the pair of strips out of attachment to the other of the pair of strips without pulling the flap apart from its adhesive attachment to the one of the pair of strips.
DESCRIPTION OF THE DRAWINGS
The present invention and its relation to the prior art will be further described with reference to the accompanying drawings, in which: Figure l is a perspective view of a reclosable bag such as used for coffee to permit opening and grinding at the point of sale.
Figure 2 is a view of the bag of Figure l as it would appear in the direction of arrow II when the top is rolled down and the tabs folded over in the locked position.
Figure 3 is a top view of one end of Figure 2.
Figure 4 is a front view of a prior art approach to a resealable bag employing a zipper therein.
Figure 5 is a cutaway view of the bag of Figure 4 in the Plane V-V.
- la -A
~302973 Figure 6 shows the bag of Figure 4 in the Plane V-V as it would appear with the zipper opened and the bag opened for use.
Figure 7 is a cutaway side elevation through the top flap portion of a bag according to the present invention.
Figure 8 shows the bag portion of Figure 8 in the area of the resealable closing strips as the flap is being fractured by pulling of the cording.
Figure 9 shows the bag of Figure 7 following the initial opening of Figure 8 with the sealing strip released and the flap being raised for access to the bag.
Figure lO is a detailed drawing in the area designated as X
in Figure 8 showing the details of the unique loop and hook fastening system of the present invention.
Figure ll is a drawing showing the delamination problem solved by the strip fastening system of the present invention.
Figure l2 is a drawing similar to that of Figure 7 showing an alternate embodiment of the present invention.
Resealable bags have been known in the art for years. For example, before it became popular to sell previously ground coffee in vacuum packed cans, coffee was sold as whole roasted - lb -ll 130~973 beans in a bag such as that generaLly indicated as 10 ;n F;gure 1. The coffee bag 10 had metal tabs 12 extend;ng out~ard from one side of the top. The t~o sides of the ~op were-pinched together by folding the s;des as at 1~. The top of the bag ~as then rolled down so as to appear as in F;gure 2 ~hen vie~ed ;n the direction of arrow II in Figure 1. The metal tabs 12 ~ere then bent around the folded-do~n top 16 as sho~n ;n F;gures 2 and 3. When the coffee was purchased, the metal tabs 12 were unfolded, the folded top 16 unrolled, and the beans (not sho~n) poured out of the bag 10 into a gr;nder from whence they were directed from a shoot back into the bag 10 wh;ch was then resealed in the manner described above.
More recently, the sale of "economy size" bags of pet food, and the like, has ;ncreased in popular;ty. Large bags of such mater;als open at the top are easily spilled and, therefore, there has been a correspond;ng desirab;l; of provid;ng a tamperproof resealable form for such bags~ That ;s, such baQs are normally sealed shut unt;l time of use. At that time, a tear str;p ;s removed allow;ng the bag to be opened. Thus, the object ;s to prov;de resealab;l;ty for such sealed or tamper-proof bags.
A recent attemPt at a solut;on to the problem ;s shown ;n F;gures 4 - 6. As sho~n therein the bag 18 ;s folded over at 20 to prnv;de abutt;ng edges, 22, 24 adjacent the top of the bag. A zipper, generally ;nd;cated as 2~, of the type hav;ng two s;des 28, 30 carry;ng ;ntermesh;ng plastic loop teeth 32 is attached to the abutting edges 22, 24 and covered w;th a sealing strip 34. At t;re of initial use, the sealing strip 34 ~02973 ;s peeled off of the z;pper 26 as indicated by the arrow 36.
The z;pper 26 can then be opened by pulling the tab 38 and the direction of arrow 40 in the usual manner of operation for zippers. To close the bag, the tab 38 ;s pulled ;n the direction opposite arrow 40, also in the conventional manner.
~;th the zipper 26 ;n ;ts open pos;tion, the abutt;ng edges 22,24 can be pulled apart to provide an entrance ;nto the bag 18 as symbol;zed by the arrow 42 ;n F;gure 6.
The use of a z;pper ;n such appl;cat;ons has numerous drawbacks. The z;pper 26, as is typ;cal, is an ent;ty compr;sing ;ts tYo s;des 28,30 and the tab 38 wh;ch must be mounted on the teeth 32 ~ith the teeth 32 ;n proper meshed relat;onsh;p. Th;s, of course, adds greatly to the complex;ty and cost of construction of the bag 18. Moreover, as it also ~ell known by anyone who has used z;ppers, any fore;gn material becoming lodged in the teeth 32 will prevent prope~ operation of the z;pper 26. The tab 38 may become completely immovable.
Add;tionally, if the z;pper 26 is assumed closed, one may find that a piece of the mater;al conta;ned ;n the bag 18 has become lodged ;n the teeth 32 prevent;ng proper intermesh;ng. Shortly thereafter, the teeth 32 ~;ll come out of engagement and the z;pper 26 completely open allow;ng the contents of the bag 18 to sp;ll.
Wherefore, ;t ;s the object of the present invent;on to provide a reclosable bag of the type described w;th respect to F;gures 4 - 6 ùut eliminating the F,robLens atten ant thereto.
130~973 SUMMARY
The foregoing objective has been real;zed ;n a bag of a flex;ble, frang;ble mater;al ;nclud;ng a bottom, opposed spaced side-s, and opposed spaced front and rear p;eces term;nat;ng at the top ;n front and rear edges respectively, by the improvement of the present ;nvent;on compr;s;ng:
a flap of the flex;ble, frang;ble material extending fro~ the rear edge over the front edge and do~n along the front p;ece;
a str;p of adhes;ve d;sposed along the bottom edge of 1~ the flap to secure it to the front piece;
a p;ece of cord;ng d;sposed between the flap and the front p;ece adjacent the top of the adhes;ve strip with at least one end exeend;n9 from between the flap and the front piece sufficiently for gripping; and a pa;r of str;ps of a hook and loop fastening sys. m disposed between the flap and the front p;ece above and adjacent the cord;ng w;th one of the pa;r of strips adhesively attached to the flap and the other of the pair of strips adhes;vely attached to the front p;ece, the pair of strips including an area on the;r lower edge in uhich there is no ab;lity for the pair of str;ps to for~ a releasable attachment to one another uhereby when the cord;ng is pulled across the flap~ the flap between the pa;r of str;ps and the adhes;ve ;s fractured and separated aLong a l;ne close adjacent the lower edge of the str;ps and thereafter the one of the-~pair of str;ps can be rolled back at the area away from the other of the pa;r of str;ps sutficientl~ to be gri ped to pul~ the one of the 130;~973 pa;r of strips out of attachment to the other of the pa;r of strips ~ithout pulling the flap apart from its adhesiVe attachment to the one of the pair of strips.
The novel hook and loop fasten;ng system employed in the bag of the present ;nvention also has independent use where it is desired to employ a hook and loop strip fastening system adhesively fastened to respective sides of a closure and wherein delamination of the adhesive fastening during repeated opening and closing of the fastening system is desired to b~
avoided.
Il 130Z~73 s DESCRIPTlON OF THE PREFERRED EM90DIMENT
Figure 7 sho~s the top of a ba~ 44 incorporating the present invent~on in its preferred embodiment~ ~ag 44, ~hile poss~ble to nanufacture as a tubu~ar constructi~ ~ith a sewn bottom, can generally be described as having a bottom (not sho~n), opposed spaced sides 46, and opposed spaced front and rear pleces 48j50, respectively, term~nat;ng ~t the top 52 in front and rear edges 54 ~nd 56, respectively. ~ag 44 lS of a flexibLe, fr~ngible material, typically multl-layer coated paper.
According to the present invent~on, a flap 58 of the same flexible, fr~ng~ble ~ater~al extends fron the rear edge 56 over the front ed~e 54 and do~n along the front piece 48. A strip of adhesive 60 is disposed along the bottom edge_h2 of the flap 58 to secure it to the front piece ~8. Various forms of dhesive can be used at oO, houever, adhesive of th~ hot Tele Il ~30Z973 var;ety ;s preferred for ease of manufacture. A piece of cording 64 is disposed bet~een the flap 58 and the front piece 48 adjacent the top of the adhesive str;p 60 with at least one end thereof extend;ng from bet~een the flap 58 and the front piece 48 sufficiently for gr;pp;ng. That w;ll be recogn;zed by those skilled ;n the art, cording, string, tape, or the like, as thus positioned can be used to fracture the flap 58 which in its or;g;nally secured posit;on as just described acts as a tamperproof closing for the bag 44 prior to init;al opening.
As w;ll also be recogn;zed by those skilled in the art, other means for fracturing the flap 58 could be employed within the scope and sp;r;t of the present invention such as providing a perforated tear strip ~ithin the flap 58 itself.
A pair of strips 66 and 68 of a hook and loop fastening system generally indicated as 70 are disposed between the flap 5~ and the front piece 48 above and adjacent to the cording 64 ~ith strip 66 adhes;vely attached to the flap 58 and str;p 68 adhes;vely attached to the front piece 48. Again, for ease of manufacture, it is preferred that the strips 66,68 be adhesively attached to the flap 58 and front piece 48 by a hot melt adhesive for ease of manufacture (ho~ever, pressure sensitive adhesives, for example, could also be used). The hook and loop fastening system 70, compr;sing strips 66,68, is of a type generally ~ell kno~n to those skilled in the art and, in particular, sold by the assignee of this application under the trademark VE~CR0. The preferred embodiment of the present invention as being described incorporates a new and novel embod;ment of the hook and loop fastening system 70 ~h;ch will be described ;n greater detail shortly.
~ 1302973 As shown ;n Figure 8, as the cording 64 ;s pulled outwardly in the direction of arrr,w 72, the flap 58 ;s fractured and separated close adjacent the bottom edge 74 of the str;ps 66,68. By so do;ng, the str;p 66 adhes;vely attached to the flap 58 can be gripped to pull ;t from ;ts engagement from strip 68 w;thout a delaminat;ng problem dep;cted ;n F;gure 11 wh;ch would other~;se take place. As seen ;n F;gure 11, ;f the fLap 58 were allowed to extend beyond the strip 66 and the peel;ng or separating force ~ere appl;ed ;n the d;rect;on of arro~ 76, there ;s a good chance that, at least after several open;ngs and closings, the flap 58 ~ould delam;nate at the adhes;ve 60 from the strip 66 at the po;nt indicated by arrow 78. Shortly, flap 58 ~ould then completely separate from strip 66 and the reclosability feature would be lost. ~y be;ng able to grip str;p 66 d;rectly and apply the ;nitial peel;ng force thereto, the delam;nat;ng problem of Figure 11 ;s substant;ally avoided. Once the str;ps 66, 68 have been separated, the flap 58 can be l;fted as ;nd;cated by the arrow 8C ;n Figure 9 and front edge 54 pulled outward in the direction of arro~ 82 to provide entrance to the bag 44. Closure and resealing is, of course, a reverse of the above-described procedure. The front and rear edges 54,56 are pressed together and the flap 58 pulled do~n over the front edge 54 until the strips 66,68 can be pressed together into releasable attach~ent with one another.
Turning now ~ith particularlity to Figure 10, the novel construction of the hook and loop fastening system 70 of the present invent;on ~ill now be described in detail. As w;ll be appreci3ted by those s~;Lled in the art, the hcrk and lo~p 1302!~73 fasten;ng 70 prov;des benef;ts of delam;nat;on res;stance for other uses besides bags as hereinbefore descr;bed ~hen it is des;red to apply the strip 66, 68 ~;th an adhes;ve such as hot melt, or other~ise. In the usual manner, one loop str;p (;n th;s case str;p 66) compr;ses a back;ng material 84 such as polypropylene adapted to adhere to the adhes;ve 86 and covered u;th a loop mater;al 88. The other str;p (;n this case str;p 68) also has a back;ng 84 to uhich adhesive ~6 will adhere ~ith res;l;ently flex;ble "J" or "T" hooks 90 extending therefrom.
To accomplish the purposes des;red, an area at 92 ;s prov;ded uhere the strips 66,68 will not adhere to one another. Th;s ;s most eas;ly accompl;shed by el;m;nating the hooks 90 ;n that area. ln the preferred embodiment, the hooks 90 are d;sposed in long;tud;naL rows and to prov;de the area 92 at least one ro~, and preferabLy tuo or three, ;s eliminated. As a consequence, if out~ard pressure is exerted ~;th;n the area 92 as symbolized by the arro~ 94, str;p 66 (;n combinat;on u;th the bottom of flap 58) can be rolled back suff;c;ently to allow the bottom edge of the str;p 66 to the gr;p securely such that the str;ps 66,68 can be pulled out of the;r entangled engagement ~;th one another uherein the hooks 90 are entangled into the loop material 88.
The un;que hook and loop fastening system 70 as thus descr;bed can also be ;ncorporated into an alternate embod;ment of the bag of the present ;nvention as sho~n in Figure 12. In this embodiment, the bag 96 is of substant;ally~~he same construction as bag 44 of the preferred embodiment. The hook and loop fasten;ng syste- 70, ho ever, is moved ~o a point where;n one strip is attached to the front ed=e 54 and the other to the rear edge 56 w;th the above described area 92 Off the top 52. The flap 58 was attached w;th the adhesive 60 as previously described and with separation means such as the cord;ng 6~ adjacent thereto. Once opened, the fLap is not resealabLe in this embod;ment but the top 52 was resealable at the front and rear edges 54,56 by means of the fasten;ng system 70 d;sposed there;n. ~ecause of the un;que construct;on of the fastening system 70 as descr;bed above and the area 92 for gripp;ng prov;ded thereby, the strip 66 and front edge 54 can be securely gr;ppeJ to pull them out of engagement with the str;p 68 w;thout causing the delam;nat;on problem of the adhes;ve prev;ously descr;bed.
~herefore, having thus described my invention, it can be seen that the present invent;on not only provides a reclosable bag w~-h improved sealing means as des;red. But, add;tionally, an ;mproved hook and loop fasten;ng system for use ;n adhes;vely appl;ed appl;cations where delam;nation of the glue adhesion ;s avo;ded despite repeated openings and closings.
- lO ~ _
BACKGROUND OF THE INVENTION
The present invention relates to resealable bags, and, more particularly, to a bag of a flexible, frangible material, including a bottom, opposed spaced sides, and opposed spaced front and rear pieces terminating at the top and front and rear edges respectively, wherein tamperproof resealability is provided by a flap of the flexible, frangible material extending from the rear edge over the front edge and down along the front piece; a strip of adhesive disposed along the bottom edge of the flap to secure it to the front piece; a piece of cording disposed between the flap and the front piece adjacent the top of the adhesive strip with at least one end extending from between the flap and the front piece sufficiently for gripping; and, a pair of strips of a hook and loop fastening system disposed between the flap and the front piece above and adjacent to the cording with one of the pair of strips adhesively attached to the flap and the other of the pair of strips adhesively attached to the front piece whereby when the cording is pulled across the flap, the flap between the pair of strips and the strip of adhesive is fractured and ~30Zg73 separated along a line close adjacent the lower edge of the strip so that thereafter the one of the pair of strips can be gripped to pull the one of the pair of strips out of attachment to the other of the pair of strips without pulling the flap apart from its adhesive attachment to the one of the pair of strips.
DESCRIPTION OF THE DRAWINGS
The present invention and its relation to the prior art will be further described with reference to the accompanying drawings, in which: Figure l is a perspective view of a reclosable bag such as used for coffee to permit opening and grinding at the point of sale.
Figure 2 is a view of the bag of Figure l as it would appear in the direction of arrow II when the top is rolled down and the tabs folded over in the locked position.
Figure 3 is a top view of one end of Figure 2.
Figure 4 is a front view of a prior art approach to a resealable bag employing a zipper therein.
Figure 5 is a cutaway view of the bag of Figure 4 in the Plane V-V.
- la -A
~302973 Figure 6 shows the bag of Figure 4 in the Plane V-V as it would appear with the zipper opened and the bag opened for use.
Figure 7 is a cutaway side elevation through the top flap portion of a bag according to the present invention.
Figure 8 shows the bag portion of Figure 8 in the area of the resealable closing strips as the flap is being fractured by pulling of the cording.
Figure 9 shows the bag of Figure 7 following the initial opening of Figure 8 with the sealing strip released and the flap being raised for access to the bag.
Figure lO is a detailed drawing in the area designated as X
in Figure 8 showing the details of the unique loop and hook fastening system of the present invention.
Figure ll is a drawing showing the delamination problem solved by the strip fastening system of the present invention.
Figure l2 is a drawing similar to that of Figure 7 showing an alternate embodiment of the present invention.
Resealable bags have been known in the art for years. For example, before it became popular to sell previously ground coffee in vacuum packed cans, coffee was sold as whole roasted - lb -ll 130~973 beans in a bag such as that generaLly indicated as 10 ;n F;gure 1. The coffee bag 10 had metal tabs 12 extend;ng out~ard from one side of the top. The t~o sides of the ~op were-pinched together by folding the s;des as at 1~. The top of the bag ~as then rolled down so as to appear as in F;gure 2 ~hen vie~ed ;n the direction of arrow II in Figure 1. The metal tabs 12 ~ere then bent around the folded-do~n top 16 as sho~n ;n F;gures 2 and 3. When the coffee was purchased, the metal tabs 12 were unfolded, the folded top 16 unrolled, and the beans (not sho~n) poured out of the bag 10 into a gr;nder from whence they were directed from a shoot back into the bag 10 wh;ch was then resealed in the manner described above.
More recently, the sale of "economy size" bags of pet food, and the like, has ;ncreased in popular;ty. Large bags of such mater;als open at the top are easily spilled and, therefore, there has been a correspond;ng desirab;l; of provid;ng a tamperproof resealable form for such bags~ That ;s, such baQs are normally sealed shut unt;l time of use. At that time, a tear str;p ;s removed allow;ng the bag to be opened. Thus, the object ;s to prov;de resealab;l;ty for such sealed or tamper-proof bags.
A recent attemPt at a solut;on to the problem ;s shown ;n F;gures 4 - 6. As sho~n therein the bag 18 ;s folded over at 20 to prnv;de abutt;ng edges, 22, 24 adjacent the top of the bag. A zipper, generally ;nd;cated as 2~, of the type hav;ng two s;des 28, 30 carry;ng ;ntermesh;ng plastic loop teeth 32 is attached to the abutting edges 22, 24 and covered w;th a sealing strip 34. At t;re of initial use, the sealing strip 34 ~02973 ;s peeled off of the z;pper 26 as indicated by the arrow 36.
The z;pper 26 can then be opened by pulling the tab 38 and the direction of arrow 40 in the usual manner of operation for zippers. To close the bag, the tab 38 ;s pulled ;n the direction opposite arrow 40, also in the conventional manner.
~;th the zipper 26 ;n ;ts open pos;tion, the abutt;ng edges 22,24 can be pulled apart to provide an entrance ;nto the bag 18 as symbol;zed by the arrow 42 ;n F;gure 6.
The use of a z;pper ;n such appl;cat;ons has numerous drawbacks. The z;pper 26, as is typ;cal, is an ent;ty compr;sing ;ts tYo s;des 28,30 and the tab 38 wh;ch must be mounted on the teeth 32 ~ith the teeth 32 ;n proper meshed relat;onsh;p. Th;s, of course, adds greatly to the complex;ty and cost of construction of the bag 18. Moreover, as it also ~ell known by anyone who has used z;ppers, any fore;gn material becoming lodged in the teeth 32 will prevent prope~ operation of the z;pper 26. The tab 38 may become completely immovable.
Add;tionally, if the z;pper 26 is assumed closed, one may find that a piece of the mater;al conta;ned ;n the bag 18 has become lodged ;n the teeth 32 prevent;ng proper intermesh;ng. Shortly thereafter, the teeth 32 ~;ll come out of engagement and the z;pper 26 completely open allow;ng the contents of the bag 18 to sp;ll.
Wherefore, ;t ;s the object of the present invent;on to provide a reclosable bag of the type described w;th respect to F;gures 4 - 6 ùut eliminating the F,robLens atten ant thereto.
130~973 SUMMARY
The foregoing objective has been real;zed ;n a bag of a flex;ble, frang;ble mater;al ;nclud;ng a bottom, opposed spaced side-s, and opposed spaced front and rear p;eces term;nat;ng at the top ;n front and rear edges respectively, by the improvement of the present ;nvent;on compr;s;ng:
a flap of the flex;ble, frang;ble material extending fro~ the rear edge over the front edge and do~n along the front p;ece;
a str;p of adhes;ve d;sposed along the bottom edge of 1~ the flap to secure it to the front piece;
a p;ece of cord;ng d;sposed between the flap and the front p;ece adjacent the top of the adhes;ve strip with at least one end exeend;n9 from between the flap and the front piece sufficiently for gripping; and a pa;r of str;ps of a hook and loop fastening sys. m disposed between the flap and the front p;ece above and adjacent the cord;ng w;th one of the pa;r of strips adhesively attached to the flap and the other of the pair of strips adhes;vely attached to the front p;ece, the pair of strips including an area on the;r lower edge in uhich there is no ab;lity for the pair of str;ps to for~ a releasable attachment to one another uhereby when the cord;ng is pulled across the flap~ the flap between the pa;r of str;ps and the adhes;ve ;s fractured and separated aLong a l;ne close adjacent the lower edge of the str;ps and thereafter the one of the-~pair of str;ps can be rolled back at the area away from the other of the pa;r of str;ps sutficientl~ to be gri ped to pul~ the one of the 130;~973 pa;r of strips out of attachment to the other of the pa;r of strips ~ithout pulling the flap apart from its adhesiVe attachment to the one of the pair of strips.
The novel hook and loop fasten;ng system employed in the bag of the present ;nvention also has independent use where it is desired to employ a hook and loop strip fastening system adhesively fastened to respective sides of a closure and wherein delamination of the adhesive fastening during repeated opening and closing of the fastening system is desired to b~
avoided.
Il 130Z~73 s DESCRIPTlON OF THE PREFERRED EM90DIMENT
Figure 7 sho~s the top of a ba~ 44 incorporating the present invent~on in its preferred embodiment~ ~ag 44, ~hile poss~ble to nanufacture as a tubu~ar constructi~ ~ith a sewn bottom, can generally be described as having a bottom (not sho~n), opposed spaced sides 46, and opposed spaced front and rear pleces 48j50, respectively, term~nat;ng ~t the top 52 in front and rear edges 54 ~nd 56, respectively. ~ag 44 lS of a flexibLe, fr~ngible material, typically multl-layer coated paper.
According to the present invent~on, a flap 58 of the same flexible, fr~ng~ble ~ater~al extends fron the rear edge 56 over the front ed~e 54 and do~n along the front piece 48. A strip of adhesive 60 is disposed along the bottom edge_h2 of the flap 58 to secure it to the front piece ~8. Various forms of dhesive can be used at oO, houever, adhesive of th~ hot Tele Il ~30Z973 var;ety ;s preferred for ease of manufacture. A piece of cording 64 is disposed bet~een the flap 58 and the front piece 48 adjacent the top of the adhesive str;p 60 with at least one end thereof extend;ng from bet~een the flap 58 and the front piece 48 sufficiently for gr;pp;ng. That w;ll be recogn;zed by those skilled ;n the art, cording, string, tape, or the like, as thus positioned can be used to fracture the flap 58 which in its or;g;nally secured posit;on as just described acts as a tamperproof closing for the bag 44 prior to init;al opening.
As w;ll also be recogn;zed by those skilled in the art, other means for fracturing the flap 58 could be employed within the scope and sp;r;t of the present invention such as providing a perforated tear strip ~ithin the flap 58 itself.
A pair of strips 66 and 68 of a hook and loop fastening system generally indicated as 70 are disposed between the flap 5~ and the front piece 48 above and adjacent to the cording 64 ~ith strip 66 adhes;vely attached to the flap 58 and str;p 68 adhes;vely attached to the front piece 48. Again, for ease of manufacture, it is preferred that the strips 66,68 be adhesively attached to the flap 58 and front piece 48 by a hot melt adhesive for ease of manufacture (ho~ever, pressure sensitive adhesives, for example, could also be used). The hook and loop fastening system 70, compr;sing strips 66,68, is of a type generally ~ell kno~n to those skilled in the art and, in particular, sold by the assignee of this application under the trademark VE~CR0. The preferred embodiment of the present invention as being described incorporates a new and novel embod;ment of the hook and loop fastening system 70 ~h;ch will be described ;n greater detail shortly.
~ 1302973 As shown ;n Figure 8, as the cording 64 ;s pulled outwardly in the direction of arrr,w 72, the flap 58 ;s fractured and separated close adjacent the bottom edge 74 of the str;ps 66,68. By so do;ng, the str;p 66 adhes;vely attached to the flap 58 can be gripped to pull ;t from ;ts engagement from strip 68 w;thout a delaminat;ng problem dep;cted ;n F;gure 11 wh;ch would other~;se take place. As seen ;n F;gure 11, ;f the fLap 58 were allowed to extend beyond the strip 66 and the peel;ng or separating force ~ere appl;ed ;n the d;rect;on of arro~ 76, there ;s a good chance that, at least after several open;ngs and closings, the flap 58 ~ould delam;nate at the adhes;ve 60 from the strip 66 at the po;nt indicated by arrow 78. Shortly, flap 58 ~ould then completely separate from strip 66 and the reclosability feature would be lost. ~y be;ng able to grip str;p 66 d;rectly and apply the ;nitial peel;ng force thereto, the delam;nat;ng problem of Figure 11 ;s substant;ally avoided. Once the str;ps 66, 68 have been separated, the flap 58 can be l;fted as ;nd;cated by the arrow 8C ;n Figure 9 and front edge 54 pulled outward in the direction of arro~ 82 to provide entrance to the bag 44. Closure and resealing is, of course, a reverse of the above-described procedure. The front and rear edges 54,56 are pressed together and the flap 58 pulled do~n over the front edge 54 until the strips 66,68 can be pressed together into releasable attach~ent with one another.
Turning now ~ith particularlity to Figure 10, the novel construction of the hook and loop fastening system 70 of the present invent;on ~ill now be described in detail. As w;ll be appreci3ted by those s~;Lled in the art, the hcrk and lo~p 1302!~73 fasten;ng 70 prov;des benef;ts of delam;nat;on res;stance for other uses besides bags as hereinbefore descr;bed ~hen it is des;red to apply the strip 66, 68 ~;th an adhes;ve such as hot melt, or other~ise. In the usual manner, one loop str;p (;n th;s case str;p 66) compr;ses a back;ng material 84 such as polypropylene adapted to adhere to the adhes;ve 86 and covered u;th a loop mater;al 88. The other str;p (;n this case str;p 68) also has a back;ng 84 to uhich adhesive ~6 will adhere ~ith res;l;ently flex;ble "J" or "T" hooks 90 extending therefrom.
To accomplish the purposes des;red, an area at 92 ;s prov;ded uhere the strips 66,68 will not adhere to one another. Th;s ;s most eas;ly accompl;shed by el;m;nating the hooks 90 ;n that area. ln the preferred embodiment, the hooks 90 are d;sposed in long;tud;naL rows and to prov;de the area 92 at least one ro~, and preferabLy tuo or three, ;s eliminated. As a consequence, if out~ard pressure is exerted ~;th;n the area 92 as symbolized by the arro~ 94, str;p 66 (;n combinat;on u;th the bottom of flap 58) can be rolled back suff;c;ently to allow the bottom edge of the str;p 66 to the gr;p securely such that the str;ps 66,68 can be pulled out of the;r entangled engagement ~;th one another uherein the hooks 90 are entangled into the loop material 88.
The un;que hook and loop fastening system 70 as thus descr;bed can also be ;ncorporated into an alternate embod;ment of the bag of the present ;nvention as sho~n in Figure 12. In this embodiment, the bag 96 is of substant;ally~~he same construction as bag 44 of the preferred embodiment. The hook and loop fasten;ng syste- 70, ho ever, is moved ~o a point where;n one strip is attached to the front ed=e 54 and the other to the rear edge 56 w;th the above described area 92 Off the top 52. The flap 58 was attached w;th the adhesive 60 as previously described and with separation means such as the cord;ng 6~ adjacent thereto. Once opened, the fLap is not resealabLe in this embod;ment but the top 52 was resealable at the front and rear edges 54,56 by means of the fasten;ng system 70 d;sposed there;n. ~ecause of the un;que construct;on of the fastening system 70 as descr;bed above and the area 92 for gripp;ng prov;ded thereby, the strip 66 and front edge 54 can be securely gr;ppeJ to pull them out of engagement with the str;p 68 w;thout causing the delam;nat;on problem of the adhes;ve prev;ously descr;bed.
~herefore, having thus described my invention, it can be seen that the present invent;on not only provides a reclosable bag w~-h improved sealing means as des;red. But, add;tionally, an ;mproved hook and loop fasten;ng system for use ;n adhes;vely appl;ed appl;cations where delam;nation of the glue adhesion ;s avo;ded despite repeated openings and closings.
- lO ~ _
Claims (7)
1. In a bag of flexible, frangible material including a bottom, opposed spaced sides, and opposed spaced front and rear pieces terminating at the top in front and rear edges respectively, the improvement to provide tamperproof resealability comprising:
(a) a flap of the flexible, frangible material extending from the rear edge and descending from a fold-point downward over the front edge and down along the front piece;
(b) a strip of adhesive disposed along the bottom edge of said flap to secure it to the front piece;
(c) first and second elongated strips of a hook and loop fastening system disposed between said flap and front piece above and adjacent to said strip of adhesive with said first strip adhesively attached across the full width thereof to said flap and said second strip adhesively attached across the full width thereof to the front piece, one of said first and second strips including an engaging area along its upper longitudinal edge portion which is sufficiently narrower than the width of the engaging area of the other of said first and second strips, the remaining area along the lower longitudinal edge of the one strip lacking the ability for that strip to form an attachment to the adjacent area of the other strip;
wherein said fold-point of said flap provides a means of placing said strips in substantial alignment with one another along their longitudinal edges to that one strip substantially overlies the other strip; and (d) fracturing means disposed for fracturing and splitting said flap adjacent the bottom edge of said first and second strips whereby upon initial opening of said fracturing means said flap is fractured and separated along a line closely adjacent said lower edge of said strips and thereafter when said first strip engages and substantially overlies said second strip with said longitudinal edges substantially aligned, said flap and a sufficient portion adjacent the lower longitudinal edge of said first strip can be laterally rolled back away from said second strip, to be directly gripped by human fingers to laterally pull said first strip out of attachment with said second strip whereby the initial lateral separation forces of both strips are intermediate the longitudinal edges of the strips substantially along the boundary of said engaging area and said remaining area so that peeling of said lower longitudinal edges of the strips from said flap and said front piece is prevented thereby avoiding delamination of either strip from the member of the bag to which it is adhesively attached.
(a) a flap of the flexible, frangible material extending from the rear edge and descending from a fold-point downward over the front edge and down along the front piece;
(b) a strip of adhesive disposed along the bottom edge of said flap to secure it to the front piece;
(c) first and second elongated strips of a hook and loop fastening system disposed between said flap and front piece above and adjacent to said strip of adhesive with said first strip adhesively attached across the full width thereof to said flap and said second strip adhesively attached across the full width thereof to the front piece, one of said first and second strips including an engaging area along its upper longitudinal edge portion which is sufficiently narrower than the width of the engaging area of the other of said first and second strips, the remaining area along the lower longitudinal edge of the one strip lacking the ability for that strip to form an attachment to the adjacent area of the other strip;
wherein said fold-point of said flap provides a means of placing said strips in substantial alignment with one another along their longitudinal edges to that one strip substantially overlies the other strip; and (d) fracturing means disposed for fracturing and splitting said flap adjacent the bottom edge of said first and second strips whereby upon initial opening of said fracturing means said flap is fractured and separated along a line closely adjacent said lower edge of said strips and thereafter when said first strip engages and substantially overlies said second strip with said longitudinal edges substantially aligned, said flap and a sufficient portion adjacent the lower longitudinal edge of said first strip can be laterally rolled back away from said second strip, to be directly gripped by human fingers to laterally pull said first strip out of attachment with said second strip whereby the initial lateral separation forces of both strips are intermediate the longitudinal edges of the strips substantially along the boundary of said engaging area and said remaining area so that peeling of said lower longitudinal edges of the strips from said flap and said front piece is prevented thereby avoiding delamination of either strip from the member of the bag to which it is adhesively attached.
2. The resealability improvement to a bag of claim 1 wherein said fracturing means comprises:
a piece of cording disposed between said flap and the front piece adjacent the top of said adhesive strip with at least one end extending from between said flap and the front piece sufficiently for gripping.
a piece of cording disposed between said flap and the front piece adjacent the top of said adhesive strip with at least one end extending from between said flap and the front piece sufficiently for gripping.
3. The improvement to a hook and loop fastening system of claim 1 wherein:
(a) said first strip is covered with loop material;
(b) said second strip is covered with longitudinal rows of resiliently flexible hooks for releasably intermeshing with said loop material;
(c) said remaining area comprises a sufficient portion adjacent said lower longitudinal edge of said second strip where said hooks are missing; and (d) the area of said first strip aligned with said remaining area is the portion of the strip laterally rolled back to be directly gripped by human fingers.
(a) said first strip is covered with loop material;
(b) said second strip is covered with longitudinal rows of resiliently flexible hooks for releasably intermeshing with said loop material;
(c) said remaining area comprises a sufficient portion adjacent said lower longitudinal edge of said second strip where said hooks are missing; and (d) the area of said first strip aligned with said remaining area is the portion of the strip laterally rolled back to be directly gripped by human fingers.
4. In a bag of flexible frangible material including a bottom, opposed spaced sides, and opposed spaced front and rear pieces terminating at the top in front and rear edges respectively, the improvement to provide tamperproof resealability comprising:
(a) a flap of the flexible, frangible material extending from the rear edge and descending from a fold-point downward over the front edge and down along the front piece;
(b) a strip of adhesive disposed along the bottom of said flap to secure it to the front piece;
(c) first and second elongated strips of a hook and loop fastening system disposed between said flap and the front piece above and adjacent to said strip of adhesive with said first strip adhesively attached across the full width thereof to said front piece and said second strip adhesively attached across the full width thereof to said flap, one of said first and second elongated strips having an engaging area along an upper longitudinal edge portion which is sufficiently narrower than the width of the engaging area of the other of said first and second strips, the remaining area along the lower longitudinal edge of the one strip lacking the ability for that strip to form a releasable attachment to the adjacent area of said other strip;
wherein said fold-point of said flap provides a means of placing said strips in substantial alignment with one another along their longitudinal edges so that one strip substantially overlies the other strip; and (d) fracturing means disposed for fracturing and splitting said flap adjacent the bottom edge of said first and second strips whereby upon initial opening with said fracturing means said flap is fractured and separated along a line closely adjacent said lower longitudinal edge of said strips so that thereafter said flap and a sufficient portion along the lower longitudinal edge of said second strip can be laterally rolled back away from said first strip to be directly gripped sufficiently by human fingers to laterally pull said second strip out of attachment with said first strip wherein the initial lateral separation forces of both strips are intermediate the longitudinal edges of said strips substantially along the boundary of said engaging area and said remaining area so that peeling of said lower longitudinal edges of the strips from said flap and said front piece is prevented thereby avoiding delamination of either strip from the member of the bag to which it is adhesively attached.
(a) a flap of the flexible, frangible material extending from the rear edge and descending from a fold-point downward over the front edge and down along the front piece;
(b) a strip of adhesive disposed along the bottom of said flap to secure it to the front piece;
(c) first and second elongated strips of a hook and loop fastening system disposed between said flap and the front piece above and adjacent to said strip of adhesive with said first strip adhesively attached across the full width thereof to said front piece and said second strip adhesively attached across the full width thereof to said flap, one of said first and second elongated strips having an engaging area along an upper longitudinal edge portion which is sufficiently narrower than the width of the engaging area of the other of said first and second strips, the remaining area along the lower longitudinal edge of the one strip lacking the ability for that strip to form a releasable attachment to the adjacent area of said other strip;
wherein said fold-point of said flap provides a means of placing said strips in substantial alignment with one another along their longitudinal edges so that one strip substantially overlies the other strip; and (d) fracturing means disposed for fracturing and splitting said flap adjacent the bottom edge of said first and second strips whereby upon initial opening with said fracturing means said flap is fractured and separated along a line closely adjacent said lower longitudinal edge of said strips so that thereafter said flap and a sufficient portion along the lower longitudinal edge of said second strip can be laterally rolled back away from said first strip to be directly gripped sufficiently by human fingers to laterally pull said second strip out of attachment with said first strip wherein the initial lateral separation forces of both strips are intermediate the longitudinal edges of said strips substantially along the boundary of said engaging area and said remaining area so that peeling of said lower longitudinal edges of the strips from said flap and said front piece is prevented thereby avoiding delamination of either strip from the member of the bag to which it is adhesively attached.
5. The resealability improvement to a bag of claim 4 wherein:
one of said first and second strips is covered with a loop material;
the other of said first and second strips is covered with longitudinal rows of resiliently flexible hooks for releasably intermeshing with said loop material; and one complete said row of hooks adjacent said longitudinal lower edge is missing whereby said area for gripping extends along the entire length of said pair of strips.
one of said first and second strips is covered with a loop material;
the other of said first and second strips is covered with longitudinal rows of resiliently flexible hooks for releasably intermeshing with said loop material; and one complete said row of hooks adjacent said longitudinal lower edge is missing whereby said area for gripping extends along the entire length of said pair of strips.
6. The resealability improvement to a bag of claim 4 wherein said fracturing means comprises;
a piece of cording disposed between said flap and the front piece adjacent the top of said adhesive strip with at least one end extending from between said flap and the front piece sufficiently for gripping.
a piece of cording disposed between said flap and the front piece adjacent the top of said adhesive strip with at least one end extending from between said flap and the front piece sufficiently for gripping.
7. The improvement to a hook and loop fastening system of claim 4 wherein:
(a) said second strip is covered with loop material;
(b) said first strip is covered with resiliently flexible hooks for releasably intermeshing with said loop material;
(c) said remaining area comprises a sufficient portion adjacent said lower longitudinal edge of said first strip where said hooks are missing; and (d) the area of said second strip aligned with said remaining area is the portion of the strip laterally rolled back to be directly gripped by human fingers.
(a) said second strip is covered with loop material;
(b) said first strip is covered with resiliently flexible hooks for releasably intermeshing with said loop material;
(c) said remaining area comprises a sufficient portion adjacent said lower longitudinal edge of said first strip where said hooks are missing; and (d) the area of said second strip aligned with said remaining area is the portion of the strip laterally rolled back to be directly gripped by human fingers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US79096685A | 1985-10-24 | 1985-10-24 | |
| US790,966 | 1985-10-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1302973C true CA1302973C (en) | 1992-06-09 |
Family
ID=25152271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000515886A Expired - Lifetime CA1302973C (en) | 1985-10-24 | 1986-08-13 | Reclosable bag and sealing strip for use therein |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0244426A4 (en) |
| KR (1) | KR870700559A (en) |
| AU (1) | AU6222786A (en) |
| CA (1) | CA1302973C (en) |
| ES (1) | ES2001567A6 (en) |
| NZ (1) | NZ217307A (en) |
| WO (1) | WO1987002646A1 (en) |
| ZA (1) | ZA865754B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4860893A (en) * | 1987-12-21 | 1989-08-29 | Kaufman Kevin W | Paper roll cover and process for manufacture |
| CA1334955C (en) * | 1988-11-21 | 1995-03-28 | Kenneth R. Makowka | Tamper-evident sealing system for envelope and method of making same |
| US5077001A (en) * | 1988-11-21 | 1991-12-31 | Makowka Kenneth R | Tamper-evident sealing system for envelope having special characteristics and method of making same |
| WO1993015969A1 (en) * | 1992-02-18 | 1993-08-19 | Thompson Dental Manufacturing Co. | Reusable, resealable sterilization bag |
| US5715943A (en) * | 1995-01-20 | 1998-02-10 | Thompson Dental Mfg Co, Inc | Reusable sterilization pouch and its method of production |
| CH690998A5 (en) * | 1996-06-03 | 2001-03-30 | Nutresco Sa | food packaging, especially for pet food. |
| WO2002030772A1 (en) * | 2000-10-13 | 2002-04-18 | Velcro Industries B.V. | Filling and using reclosable bags |
| US6991375B2 (en) | 1998-11-06 | 2006-01-31 | Velcro Industries B.V. | Reclosable packaging |
| EP1090852A1 (en) * | 1999-10-06 | 2001-04-11 | Fameccanica.Data S.p.A. | Packaging, for example for hygiene-health products |
| DE60105050T2 (en) * | 2000-09-08 | 2005-08-11 | Velcro Industries B.V. | REVERSIBLE BAG |
| DE20106175U1 (en) * | 2001-04-07 | 2002-08-14 | Bischof und Klein GmbH & Co. KG, 49525 Lengerich | Gusseted bags or sacks made of flexible, weldable material |
| US9260214B2 (en) | 2012-02-13 | 2016-02-16 | Cryovac, Inc. | Easy open and reclosable package with panel section with die-cut, and reclosure mechanism |
| US8807834B2 (en) * | 2012-02-13 | 2014-08-19 | Cryovac, Inc. | Easy open and reclosable package with panel section with easy open sealant, and reclosure mechanism |
| WO2015173171A1 (en) | 2014-05-12 | 2015-11-19 | Velcro Industries B.V. | Reusable closure system for packaging |
| US10167111B2 (en) | 2014-12-19 | 2019-01-01 | Velcro BVBA | Tamper-evident reusable package closure |
| US9511911B1 (en) * | 2016-01-29 | 2016-12-06 | Inteplast Group Corporation | Reclosable bag with header |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3279008A (en) * | 1964-11-23 | 1966-10-18 | Wolverine Shoe & Tanning Corp | Ski band |
| US3321126A (en) * | 1965-09-07 | 1967-05-23 | Gulf Oil Corp | Recloseable container |
| US3307872A (en) * | 1966-04-25 | 1967-03-07 | Charles E Murcott | Support belt |
| US3557853A (en) * | 1969-05-01 | 1971-01-26 | Mary Henning Jones | Sanitary napkin holder |
| US3807626A (en) * | 1972-03-20 | 1974-04-30 | St Regis Paper Co | Gusseted pinch bottom breakaway pouch bag |
| US4094021A (en) * | 1977-02-03 | 1978-06-13 | Rapp Robert A | Swimming pool cover |
| US4567987A (en) * | 1984-08-27 | 1986-02-04 | Champion International Corporation | Easy opening pinch bottom bag |
| US4580683A (en) * | 1985-05-01 | 1986-04-08 | Jiffy Packaging Corp. | High security self-sealing mailing receptacle |
-
1986
- 1986-07-31 ZA ZA865754A patent/ZA865754B/en unknown
- 1986-08-13 CA CA000515886A patent/CA1302973C/en not_active Expired - Lifetime
- 1986-08-18 AU AU62227/86A patent/AU6222786A/en not_active Abandoned
- 1986-08-18 WO PCT/US1986/001679 patent/WO1987002646A1/en not_active Application Discontinuation
- 1986-08-18 EP EP19860905125 patent/EP0244426A4/en not_active Withdrawn
- 1986-08-21 NZ NZ217307A patent/NZ217307A/en unknown
- 1986-08-22 ES ES8601293A patent/ES2001567A6/en not_active Expired
-
1987
- 1987-06-24 KR KR870700540A patent/KR870700559A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| WO1987002646A1 (en) | 1987-05-07 |
| ES2001567A6 (en) | 1988-06-01 |
| ZA865754B (en) | 1987-03-25 |
| AU6222786A (en) | 1987-05-19 |
| KR870700559A (en) | 1987-12-30 |
| EP0244426A4 (en) | 1989-02-16 |
| NZ217307A (en) | 1988-03-30 |
| EP0244426A1 (en) | 1987-11-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed | ||
| MKLA | Lapsed |
Effective date: 19941209 |