ziplock
Ziplock for pouches and bags - Patent Review 6826808Create Free Account | License or Sell Your Patent | WikiPatents Marketplace | WikiPatents Blog
Username: Password: US Patent # (ex: 7012345)US App # (ex: 20050123456) Advanced SearchZiplock for pouches and bags Get related patents on CDUnited States Patent6826808 Link to this pagehttp://www.wikipatents.com/6826808.htmlInventor(s)Kutschka; Martin (Graz, AT)AbstractThe invention relates to a closure (3) that comprises two interacting pairs
of locking ribs (23, 33) that function in pairs. Said locking ribs (23,
33) are formed integrally with connecting strips (17, 21) in which guide
ribs (27, 37) are configured which engage in a common glider (31). The
closure (3) is opened by conical grooves (29, 39) inside the glider (31)
which modify the distance between the two guide ribs (27, 37) by pushing
apart and separating or reuniting and joining them. Title Information Plain textPDF imagesPrintSummaryFile History Custom SearchInventor Kutschka; Martin (Graz, AT) Owner/Assignee Zip Pack IP AG (Goldach, CH) Patent assignmentAll assignmentsCompany NewsPublication Date December 7, 2004Application Number 10/363,770 $10B$5B - $10B$2B - $5B$500M - $2B$100M - $500M$10M - $100M$1M - $10M$500K - $1M$100K - $500K< $100K[No votes] $0 $0 $2.5B $5B $7.5B $10B[0 market size comments]Market ShareEstimate the percentage of the relevant market sector this invention will capture:75% - 100%50% - 74.99%25% - 49.99%10 - 24.99%5 - 9.99%2 - 4.99%1 - 1.99%< 1%[No votes] 0.0% 0% 25% 50% 75% 100%[0 market share comments]Reasonable RoyaltyWhat percentage of gross sales should the inventor or assignee be paid?75% - 100%50% - 74.99%25% - 49.99%10 - 24.99%5 - 9.99%2 - 4.99%1 - 1.99%< 1%[No votes] 0.0% 0% 25% 50% 75% 100%[0 reasonable royalty comments]Public's "Guesstimation" of Royalty ValueMarket SizeN/A[No votes]xMarket ShareN/A[No votes]xReasonable RoyaltyN/A[No votes]N/A[0 Guesstimation of Royalty Value Comments]License AvailablityIf you are NOT the owner or assignee, answer here:Yes, license is available for purchaseNo, license is not currently available [No votes][0 license availability comments]License AvailablityIf you ARE the owner or assignee, answer here:Yes, license is available for purchaseNo, license is not currently available [No votes][0 owner/assignee comments]Competitive AdvantageDoes this invention have a significant competitive advantage over similar technologies?YesNo [No votes]Most helpful competitive advantage comment[No comments][0 competitive advantage comments]Commercial AlternativesAre there viable commercial alternatives for this invention?YesNo [No votes]Most helpful commercial alternative comment[No comments][0 commercial alternatives comments] Market Review Technical Review Problem SeverityHow serious is the problem this invention seeks to solve?Your vote accepted[0 after 0 votes] [0 problem severity comments]Adequate SolutionHow well does this invention solve the problem?Your vote accepted[0 after 0 votes] [0 solution adequacy comments] Adequate DescriptionHow well does this patent teach how to make and use the claimed invention?Your vote accepted[0 after 0 votes] [0 description adequacy comments] Technical Accuracy of DescriptionHow technically accurate is this patent?Your vote accepted[0 after 0 votes] [0 technical accuracy comments] Technical Review Claims What is claimed is:
1. A closure for pouches and bags, comprising two profile strips that can
be interconnected and a slider that is engaged with the two profile strips
and serves to unite and separate the two profile strips, wherein:
the first profile strip comprises a first base limb, onto which two locking
ribs are integrally formed, each locking rib comprising a hook and a
flange connecting the hook to the base limb, the hooks being directed from
their respective flange in the same direction, and a first connecting
strip for connecting the first profile strip to one wall of the pouch or
bag is integrally formed onto the base limb;
the second profile strip comprises a second base limb onto which two
locking ribs with hooks and the second connecting strip are integrally
formed, the hooks being directed in the opposite direction as the hooks on
the first profile strip; and
an undercut guide rib is respectively provided on the first and on the
second profile strips, wherein both guide ribs engage in correspondingly
shaped guide grooves in the slider.
2. The closure of claim 1, wherein the first profile strip surrounds or
encompasses the two locking ribs of the second profile strip.
3. The closure of claim 1, wherein the locking ribs on the first profile
strip have upwardly directed hooks and the locking ribs on the second
profile strip have downwardly directed hooks.
4. The closure of claim 1, wherein the hooks of the locking ribs of the
first and second profile strips are aligned.
5. The closure of claim 1, wherein the hooks of the locking ribs of the
first and second profile strips tightly contact one another in the
interconnected state.
6. The closure of claim 1, wherein the slider has a front end and a rear
end, and the distance between the grooves provided in the slider for the
guide ribs increases from a first end face on the front end toward a
second end face on the rear end.
7. The closure of claim 1, further comprising a carrying strip with a
handle opening integrally formed onto the first profile strip.
8. The closure of claim 1, further comprising a handle bow integrally
formed onto the first profile strip.
9. The closure of claim 1, wherein when connected to a bag having side
walls, the two base limbs of the profile strips are parallel to the bag
side walls.
10. The closure of claim 1, wherein the slider has an essentially u-shaped
cross section with two limbs, the slider further comprising a conically
extending rib integrally formed onto one of the two limbs wherein the apex
line of the conical rib essentially extends parallel to the adjacent guide
groove.
11. The closure of claim 10, wherein the slider rib is in the form of a
cone section.
12. The closure of claim 10, further comprising a spreading finger
integrally formed onto the base of the slider, wherein said spreading
finger extends parallel to the limbs and lies between the latter.
13. A closure for couches and baas comprising two profile strips that can
be interconnected and a slider that is engaged with the two profile strips
and serves to unite and separate the two profile strips, wherein:
the first profile strip comprises a first base limb, onto which two locking
ribs with hooks are integrally formed, and a first connecting strip for
connecting the first profile strip to one wall of the pouch or baa is
integrally formed onto the base limb;
the second profile strip comprises a second base limb onto which two
locking ribs with hooks and the second connecting strip are integrally
formed; and
an undercut guide rib is respectively provided on the first and on the
second profile strips, wherein both guide ribs engage in correspondingly
shaped guide grooves in the slider;
wherein the first profile strip surrounds or encompasses the two locking
ribs of the second profile strip.
14. The closure of claim 13, wherein the slider has an essentially u-shaped
cross section with two limbs, the slider further comprising a conically
extending rib integrally formed onto one of the two limbs wherein the apex
line of the conical rib essentially extends parallel to the adjacent guide
groove.
15. The closure of claim 14, wherein the rib is in the form of a cone
section.
16. The closure of claim 15, further comprising a spreading finger
integrally formed onto the base of the slider, wherein said spreading
finger extends parallel to the limbs and lies between the latter. Claims Description The invention pertains to a closure for pouches and bags according to the
preamble of Claim 1.
Pouches and bags that need to be reclosed after they were initially opened
frequently comprise ziplock closures or profiled closures with two
cooperating profile strips. Such profiled closures can be connected to one
another by pressing together the strips. Alternatively, a slider is
attached onto the closure and encompasses the profile strips. The profile
strips can be pulled apart or pushed together, i.e., opened or closed, by
displacing the slider along the strips. Since the slider encompasses the
two profile strips in order to press together or pull apart the strips, it
is not possible to arrange carrying straps above the closure on pouches
and bags of this type. If carrying straps are side-connected to the pouch
or bag walls, the costs are increased to a degree that is unjustifiable
for disposable articles of this type. In addition, the carrying straps
interfere with emptying the pouch or bag.
The invention is based on the objective of developing a closure with
interlocking profile strips and with a slider for opening and for closing
the profile strips, wherein said closure can be arranged on pouches and
bags that can be provided with a carrying handle above the closure.
This objective is attained with a closure with the characteristics of Claim
1. Other advantageous configurations of the closure are defined in the
dependent claims.
According to the invention, the closure comprises a slider that is arranged
to the side of the profile strips in the plane of the bag wall.
Consequently, it is possible to attach at least one handle on one of the
two profile strips that can optimally absorb the load of the bag contents.
According to the invention, the bag walls are coupled or connected to the
profile strips in such a way that the internal pressure of the bag
contents cannot separate the interlocked profile strips. This is achieved
due to the fact that the load of the bag contents do not subject the
closure to any shearing forces, but only tensile forces. The load is also
uniformly distributed over both profile strips when carrying the bag or
pouch. This prevents the bag from being opened unintentionally.
The invention is described in greater detail below with reference to two
embodiments that are illustrated in the figures. The figures show:
FIG. 1, a side view of a pouch or bag with attached closure and slider;
FIG. 2, an enlarged cross section through the closure;
FIG. 3, a view of a partially opened pouch;
FIG. 4, a side view of a pouch or bag with another configuration of the
closure;
FIG. 5, a pouch or bag with the closure according to FIG. 4 and with a
handle opening;
FIG. 6, a perspective representation of another configuration of the slider
with a closing aid and an opening aid, and
FIG. 7, an enlarged cross section through another configuration of the
closure.
FIG. 1 shows schematically a pouch or bag 1 with a closure 3 attached to
it. The size relations between the bag 1 and the closure 3 are not
illustrated true-to-scale; the closure 3 is shown much larger than is
actually the case. The bag 1 comprises two side walls 5 and 7, the free
upper edges 9 and 11 of which are connected along the opening with
connecting strips 13, 15 of the closure 3. The connection between the bag
1 and the closure 3 can be produced by gluing and sewing, gluing, sealing,
welding and/or sewing. The connecting strips 13, 15 of the closure 3 can
be attached to the outside or the inside of the bag side walls 5, 7.
A first embodiment of the closure 3 is described in greater detail below
with reference to the enlarged representation according to FIG. 2. The
connecting strip 15 on the first profile strip 17 is connected by a web 19
to two locking ribs 23 of hook-shaped cross section that engage with the
second profile strip 21. The locking ribs 23 form pad of the base limb 25
of the first profile strip 17. As shown in FIG. 2, each locking rib 23
comprises a hook 24 and a flange. The hooks 24 on the locking ribs 23 are
directed upward. An undercut guide rib 27 is arranged on the rear side of
the base limb 25, i.e., opposite the ribs 23. This guide rib 27 extends
parallel to the locking ribs 23. The guide rib 27 lies in a groove 29 in a
slider 31, wherein the geometry of the groove corresponds to that of the
guide rib 27. A carrying strip 16 that is provided with a handle opening
20 can be integrally formed onto the web 19 in an extension of the
connecting strip 15.
The second profile strip 21 also comprises two locking ribs 33, the hooks
36 of which are directed downward and engage behind the locking ribs 23 of
the first profile strip 17 from the top. The locking ribs 33 are also
arranged on a base limb 35, on the bottom of which the connecting strip 13
is arranged. As is also the case with the first profile strip 17, a guide
rib 37 is provided on the base limb 35. In FIG. 2, this guide rib is
situated below the guide rib 27 on the first profile strip 17, and extends
parallel to it. It also lies within a second guide groove 39 in the slider
31. The two guide ribs 27 and 37 can be arranged directly beneath one
another as shown in FIG. 2; however, they can also be horizontally offset
if the lower section 34 of the base limb 35 has a shorter horizontal
dimension than that shown in FIG. 2.
FIG. 2 also shows that the first profile strip 17 completely encompasses
the second profile strip 21 at least in the upper section. In other words,
the second profile strip 21 lies with its two locking ribs 33 within the
first profile strip 17.
The locking ribs 23 of the first profile strip 17 and the locking ribs 33
of the second profile strip 21 respectively extend parallel to one another
in pairs, and are respectively spaced apart from one another by the same
distance.
By contrast, the two grooves 29 and 39 in the slider 31 run at an acute
angle to one another, wherein the distance between the two grooves 29 and
39 on the end, i.e., the front end in FIG. 2, corresponds to the distance
shown between the two guide ribs 27 and 37. The distance between the two
grooves 29 and 39 is greater on the opposite side of the slider 31.
Because of this, the locking ribs 23 and 33 that are interconnected at the
front of the slider in FIG. 2 are pulled apart or disengaged behind the
slider 31 so that the interior of the pouch or bag 1 becomes accessible.
This means that the two profile strips 17, 21 are pulled apart and mutually
disengaged by increasing the distance between the two guide rib pairs 27
and 37. This increase in distance simultaneously pivots the claw-shaped
locking ribs 23 and 33 in the direction of the arrows P and S. Due to the
spreading of the interconnected pairs of ribs 23, 33, the two contact
surfaces 41 and 43 on the locking ribs 23 and 33 that were initially flat
alongside one another move apart and are mutually disengaged. Before they
slide apart, the two contact surfaces 41 and 43 assume an inclined
position that promotes their sliding apart and prevents damage to the
locking ribs 23 and 33 during this process. The sliding apart of the
contact surfaces is additionally simplified by the cylindrical peripheral
surfaces 45 and 47 of the locking ribs 23 and 33. At the same time, the
cylindrical design of the surfaces 45, 47 promotes interlocking of the two
profile strips 17 and 21 when they are united to close off the bag
opening. By contrast to the elastic locking ribs 23 and 33, the guide ribs
27 and 37 that engage into the slider 31 are made rigid at least to the
degree that they cannot be disengaged from the grooves 29 and 39 in the
slider 31 under a load. This means that a very rigid connection is
produced between the two profile strips 17 and 21 and the slider 31, and
that an elastic connection is produced between the two profile strips 17
and 21.
However, the elastic connection between the two profile strips 17 and 21
can be disengaged only if they are correspondingly spread apart by the
slider 31. The connection cannot be disengaged by the pressure of the
contents of the pouch or bag 1 because the interlocking connection between
the locking ribs 23 and 33 is additionally reinforced if the connecting
strips 13, 15 are spread apart in the direction of the two arrows X. This
also occurs when the pouch or bag 1 is lifted by the carrying strip 16
because this causes a force to be exerted in the direction of the arrow Y.
If an additional carrying strip 18 is arranged on the first profile strip
17 in an extension of the base limb 25 and provided with a handle opening
20, the interlocking connection between the two locking rib pairs 23 and
33 is also additionally reinforced.
FIG. 3 shows the pouch 1 in the partially opened state. The slider 31 is
displaced approximately to its left end position and has pulled apart the
guide ribs 27, 37 by means of the acutely angled grooves 29 and 39 such
that an opening 48 is formed. The opening 48 can be reclosed by displacing
the slider 31 toward the right. This displacement toward the right
reunites the two guide ribs 27 and 37 such that the locking ribs 23 and 33
are interlocked.
In another configuration of the invention (FIGS. 4/5), the closure 3 is
turned by 90.degree. and the two base limbs 25, 35 extend horizontally,
i.e., perpendicular to the bag side walls 5, 7. The hooks and the locking
ribs are realized and function in the same fashion as those described
above with reference to FIGS. 1-3. The guide ribs 27, 37 in this case also
lie in a plane that extends parallel to the bag side wall 5, wherein the
guide ribs are also guided in identically designed guide grooves 29, 39 in
the slider 31. The handle opening 20 in the carrying strip 16 is realized
analogously to the first embodiment. The carrying strip 16 is also
connected to the connecting strip 15 and the profile strip 17 (FIG. 5) in
essentially the same plane. As an alternative to the handle opening 20
used in FIGS. 1-3 and 5, a handle bow 20' can be sewn and/or welded to the
profile strip 17 or the bag. The closure 3 shown in FIGS. 4 and 5 is
opened by displacing the slider 31. By contrast to the first embodiment,
the locking rib pairs 23, 33 are successively spread apart by the slider
31 and mutually disengaged.
In the embodiment according to FIG. 6, the slider 31 has a u-shaped cross
section. The two limbs 51 are integrally formed onto the base 55 of the
slider 31, with the two converging guide grooves 29, 39 being recessed
into the base 55 between the two limbs. A conically extending rib 53 is
formed on one of the two limbs 51. This rib can have the shape of a cone
section. The upper apex S of the rib 51 extends essentially parallel to
the adjacent guide groove 39. A spreading or separating finger 57 is
arranged on the end face of the base 55 such that it extends parallel to
the two limbs 51.
The conical rib 51 presses the two locking rib pairs 23, 33 together when
uniting the two closure halves (profile strips 17 and 21) by displacing
the slider 31 in the direction of the arrow P; the spreading finger 57
presses the locking rib pairs apart when the slider 31 is displaced in the
opposite direction.
In the configuration of the invention according to FIG. 7, the slider 31 is
turned by 90.degree. relative to the side walls 5, 7. The guide grooves
29, 39 now lie above the locking rib pairs 23, 33 rather than beside them.
Consequently, the two guide ribs 27, 37 are also situated at the upper end
and form the upper edge of the closed pouch 1. The function of this
closure is identical to that of the other embodiments.
* * * * * Description Previous Patent (Fastener)Next Patent (Separable bottom end stop for slide fastener)6826808TitleReferencesMarketTechnicalClaimsDescriptionHTMLPDF[-] ALL[+] ALL[+] Comments[-] CommentsAbout WikiPatents | FAQs | Terms & Disclaimer | Marketplace | Link to WikiPatents | Contact Us© Copyright 2007 - WikiPatents, Inc. - All rights reserved.WikiPatents,Inc. is not affiliated with Wikipedia or the Wikimedia Foundation.разделы
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