CA2264922C - Bag for distributing flowable material - Google Patents
Bag for distributing flowable material Download PDFInfo
- Publication number
- CA2264922C CA2264922C CA002264922A CA2264922A CA2264922C CA 2264922 C CA2264922 C CA 2264922C CA 002264922 A CA002264922 A CA 002264922A CA 2264922 A CA2264922 A CA 2264922A CA 2264922 C CA2264922 C CA 2264922C
- Authority
- CA
- Canada
- Prior art keywords
- bag construction
- panel sections
- base gusset
- gusset member
- transverse
- 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
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/06—Containers or packages with special means for dispensing contents for dispensing powdered or granular material
-
- 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
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/008—Standing pouches, i.e. "Standbeutel"
-
- 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
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
- B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
-
- 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
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5894—Preformed openings provided in a wall portion and covered by a separate removable flexible element
-
- 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
- B65D2575/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
- B65D2575/52—Details
- B65D2575/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D2575/586—Opening or contents-removing devices added or incorporated during package manufacture with means for reclosing
-
- 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
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5827—Tear-lines provided in a wall portion
- B65D75/5833—Tear-lines provided in a wall portion for tearing out a portion of the wall
-
- 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
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/66—Inserted or applied tearing-strings or like flexible elements
- B65D75/68—Inserted or applied tearing-strings or like flexible elements extending through wrapper closure or between wrapper layers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S383/00—Flexible bags
- Y10S383/906—Dispensing feature
Abstract
A bag construction (1) for use to distribute flowable material is provided.
The bag construction generally includes first (4) and second (5) panels or panel sections oriented juxtaposed to one another. In one end of the bag construction, a base gusset (8) is provided between the panels. The base gusset includes apertures (9) therein, for distribution of flowable materials. In preferred embodiments, a rib-and-trough closure arrangement (31) is provided so that the pouch construction can be selectively closed to inhibit distribution of material, when desired. Methods of preparing such arrangements and methods of use are provided.
The bag construction generally includes first (4) and second (5) panels or panel sections oriented juxtaposed to one another. In one end of the bag construction, a base gusset (8) is provided between the panels. The base gusset includes apertures (9) therein, for distribution of flowable materials. In preferred embodiments, a rib-and-trough closure arrangement (31) is provided so that the pouch construction can be selectively closed to inhibit distribution of material, when desired. Methods of preparing such arrangements and methods of use are provided.
Description
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BAG FOR DISTRIBUTING FLOWABLE MATERIAL
FIELD OF [HE INVENTION
The present invention relates to bag or pouch constructions. In
particular it relates to an arrangement from which powdered or particulate material
can be readily distributed, conveniently, by a user. The invention also concerns
methods for preparing such arrangements and methods of using such arrangements.
BA K D T NVENT
A wide variety of items comprise materials which, in use, are dispersed
or spread over an area. Many of these items are dry powder or particulate materials.
Examples of these include: grass seed; plant nutrients; insect dust; and colored chalk.
In use, such materials are generally dispersed over some surface. For
those materials that are dispersed over the ground or plants, sometimes mechanical
spreading equipment is used. While the equipment can be quite effective, it is often
large, bulky, and is generally only desirable if a relatively large amount of material is
to be spread over a relatively large area.
In many instances mechanical spreading equipment is not appropriate.
In addition, mechanical spreading equipment may need to be thoroughly cleaned
between uses, which can be inconvenient.
In some instances, spreading has involved either hand spreading or
spreading with a hand-held scoop of some type. This can be inconvenient and messy.
Alternate arrangements for spreading materials have been desirable.
SU M Y F IN NTI N
According to the present invention, a bag arrangement or construction
is provided. The bag construction includes first and second opposed or juxtaposed
panels or panel sections. In the preferred embodiments shown, each of the panel
sections has a ï¬rst end edge, a second end edge, and opposite side edge portions
extending between the first and second end edges and in extension from the ï¬rst end
edge to the second end edge of each panel section. The panel sections are secured to
one another along at least a portion of the panel section side edge portions, to form a
pouch construction having an interior and side edges. Preferably the side edges
comprise seals, most preferably heat seals.
The bag construction includes a base gusset member. The base gusset
member is oriented in extension between the first and second panel sections and
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transversely across an end of the pouch construction interior. Herein when it is said
that a feature extends "transversely" across the bag construction and/or at least one of
the panels, it is meant that the direction of extension is from one of the side edges of
the panels or bag construction to the other, rather than from one end edge to the other.
In arrangements according to the present invention, the base gusset
member includes distribution apertures therein. For example, the base gusset member
may include a plurality of holes or slits therein, to allow ï¬owable material to pass
therethrough, selectively, in use.
In certain preferred embodiments, the base gusset distribution apertures
comprise holes having an average diameter within the range of about 0.1865 inch, and
the gusset member comprises a material having an average population density of the
holes of about 8 per square inch.
A variety of materials may be utilized for bag constructions according
to the present invention. Certain preferred plastic materials, with heat sealant material
thereon, are usable, as described herein.
In certain preferred constructions, the bag construction includes a first
transverse seal securing the ï¬rst and second panel sections together, the ï¬rst
transverse seal being oriented between the base gusset member and the ï¬rst end edges
of the ï¬rst and second panel sections. When it is said in this context that the
transverse seal is "between" the ï¬rst end edges and the first and second panel sections,
it is meant that the seal is located in this region, even though it extends transversely
across the bag and does not extend from the gusset member to the first end edges. In
operation the ï¬rst transverse seal forms a pouch interior bordered by the base gusset
member, the transverse seal, and the side edges of the bag construction.
Preferred arrangements according to the present invention that include
a ï¬rst transverse seal as deï¬ned, also include at least one handle aperture oriented
between the ï¬rst transverse seal and the ï¬rst end edges of the first and second panel
sections to form a handle member. The handle member, if positioned at this location,
can be easily grasped for operation of the arrangement to distribute particulate
material.
In certain preferred embodiments the bag construction includes a ï¬rst
transverse openable and reclosable closure arrangement, in extension between the ï¬rst
and second panel sections, that is oriented to close the bag arrangement by securing
the first and second panel sections to one another, in a releasable and reclosable
manner. The ï¬rst transverse openable and reclosable arrangement is preferably
oriented to extend transversely across the bag arrangement at a location oriented
between the base gusset member and the second end edges of the first and second
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panel sections. Thus, the ï¬rst closure construction can be used to selectively close the
bag arrangement at a location on an opposite side of the gusset member, from the
interior of the pouch. This is a location oriented underneath the gusset member, when
the bag construction is oriented as it normally would be for use to distribute material.
Preferably the transverse openable and reclosable closure arrangement
comprises a rib-and-trough closure arrangement, sometimes referred to as a zipper-
type closure arrangement.
In certain arrangements, preferably the bag construction includes a
transverse end seal, sealing the first and second panel sections to one other along the
second end edges of the panel sections. These end edges would be the end edges
normally located underneath the gusset member, when the bag construction is oriented
in its normal upright position. Altemately stated, these end edges are the end edges
located on an opposite side of the base gusset member from the portion of the pouch
interior in which ï¬owable particulate material is normally stored before distribution.
Preferably arrangements according to the present invention include a
weakened transverse tear line portion extending transversely across the bag
construction and oriented at a location between the ï¬rst transverse openable and
reclosable closure arrangement and the transverse end seal. In this manner, a tab
including the transverse end seal could be readily torn from the arrangement, exposing
the base gusset member and the openable and reclosable closure arrangement for
selective operation in a preferred manner to distribute material. In certain
arrangements, preferably the transverse tear line is a score line in at least one of the
panel sections. Alternatively, in certain arrangements preferably the transverse tear
line is a perforated tear line in at least one of the panel sections. In certain preferred
embodiments, tear notches are positioned at opposite ends of the tear line, to facilitate
removal of the tearable tab from the arrangement, by hand.
According to certain embodiments of the present invention, an
arrangement including ï¬owable particulate material therein, to be dispersed, is
provided. The ï¬owable particulate material generally and preferably comprises
material which has an average particle size sufficiently smaller than the average size
of the perforations in the base gusset member, to facilitate distribution and ï¬owing of
the particulate material through the gusset member, in use. The term "ï¬owable
particulate material" in this context is intended to at least include pellets, grains, and
powders. In some instances, arrangements according to the present invention may
even be used to dispense liquids.
In certain embodiments of the present invention, as an alternative to
having a transverse seal closing a top end of the pouch, i.e. sealing the first panel to
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the second panel at a location on the same side of the gusset member as the bag
interior and generally between the base gusset member and top end edges or ï¬rst end
edges of the pouch, the construction includes an openable and reclosable closure
arrangement at this location. An example of such an closure arrangement would be a
rib-andâtrough closure arrangement located at this position. Thus, in some
embodiments, constructions according to the present invention can include more than
one rib-and-trough closure arrangement.
The invention includes within its scope: empty pouch arrangements
with an open top end to be ï¬lled with particulate material; pouch arrangements with
particulate material ï¬lled and stored therein; pouch arrangements with a bottom tab
portion torn therefrom; pouch arrangements which have been opened along a base
gusset after a tab has been torn therefrom, for distribution of particulate material;
methods of distributing particulate material utilizing such pouch arrangements; and,
methods of preparation of such pouch arrangements.
In the detailed descriptions, discussions of each of these items are
provided.
BRIEE DESCRIPTION QF THE; DRAWINQS
Fig. 1 is a perspective view of a bag arrangement according to the
present invention shown with a bottom end in an open position for spreading and
positioned in a stand-up orientation.
Fig. 2 is a top plan view of the bag arrangement shown in Fig. 1.
Fig. 3 is a bottom plan view of the bag arrangement shown in Fig. 1.
Fig. 4 is a perspective view of a pouch from which the bag
arrangement of Fig. 1 is formed, illustrated during filling.
Fig. 5 is a perspective view of the arrangement shown in Fig. 4, after
sealing a first or top end closed.
Fig. 6 is a perspective view of the arrangement shown in Fig. 5, during
a step of tearing a tab off a second or bottom end.
Fig. 7 is a perspective view of the arrangement shown in Fig. 5, after a
step of tearing off a tab from a second end and opening the second or bottom end for
spreading material.
Fig. 8 is a perspective view of the arrangement shown in Fig. 7, after a
step of reclosing a bottom end.
Fig. 9 is a perspective cross-sectional view taken generally along line
9-9, Fig. 7.
Fig. 10 is a front plan view of the arrangement shown in Fig. l.
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Fig. l 1 is a side elevational View of the arrangement shown in Figs. 1
and 10.
Fig. 12 is a top plan view of an alternate embodiment of the present
invention.
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The reference numeral 1, Fig. 1, generally designates a bag
construction or pouch arrangement according to the present invention. The particular
arrangement 1 illustrated in the Figs. 1-10, is shown as if prepared from substantially
transparent materials. In this manner internal detail can be readily seen. From
descriptions below with respect to usable materials, it will be apparent that non-
transparent materials may be utilized for constructions according to the present
invention.
Referring still to Fig. 1, the bag construction 1 depicted in Fig. l is
illustrated as it would generally appear when selectively opened and oriented for use,
in a process of distributing or dispersing material. The arrangement shown in Fig. 1,
however, is depicted without any material loaded therein for distribution, to facilitate
viewing of internal detail. Positioning of material to be distributed will be apparent
from descriptions below.
Still referring to Fig. 1, bag construction 1 comprises first and second,
opposed, side walls, panel sections or panels 4 and 5; and, base or bottom gusset or
gusset member 8. The bottom gusset 8, Fig. 3, is perforated, as illustrated by
distribution apertures or holes 9. Holes 9 are appropriately sized, and there is a
selected amount of holes 9 per unit area in gusset 8, to allow for desirable passage of
particulate or powdered material therethrough to facilitate distribution.
Referring again to Fig. 1, bag construction 1, as oriented and depicted
in Fig. 1, has a ï¬rst closed (top) end 11 and a second, opposite, open (bottom) end 12.
In the particular embodiment shown, closed end 11 includes an upper ï¬ap 15 thereon
with a handle aperture 16 therein.
A typical operation of arrangement 1 will be apparent from review of
Fig. 1. In use, the user holds construction 1 by handle 17. With bottom end 12 open,
if the user shakes the bag construction 1, ï¬owable particulate material (for example
pellets, grains or powders) within bag construction 1 will be dispensed through
bottom gusset 8, i.e. through apertures 9, and will be distributed out of the open end
12. The user can readily control distribution, by simply orienting the arrangement 1
above the object or area over which distribution of the particulate material is desired,
and shaking the bag 1 appropriately.
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Still referring to Fig. l, in general side panels 4 and 5 are secured, and
preferably sealed, to one another along seams or seals 20,2l,22,23 and 24. "These
seals, in preferred arrangements, comprise heat seals. They may be formed in a
manner conventional for pouch constructions.
Still referring to Fig. 1, in regions 26 and 27, gusset 8 is secured to
panels 4 and 5, respectively. Again, the areas of attachment may comprise heat seals
in preferred arrangements. The seals may be conventional, for the formation of stand-
up pouch constructions, such as those illustrated in U.S. Patent Nos. 5,059,036;
5,147,272; and 5,254,073.
Still referring to Fig. 1, the arrangement 1 depicted includes an
openable and reclosable closure arrangement 30, for selective opening and closing of
end 12. In the particular arrangement shown, closure 30 comprises a rib-and-trough
or zipper-type closure mechanism 31, wherein a secure closure is obtained by pressing
a rib into a trough, thereby securing the two panel sections 4, 5 to one another. Such
arrangements are available under the trademark Ziploc® from Dowbrands, LP. The
closure arrangement 30 may be secured in bag arrangement 1 by a variety of
appropriate means, for example by heat sealing, with an adhesive, or in other
convenient manners.
From review of Figs. 1 and 3, it will be apparent that after the user has
distributed a desired amount of particulate material within construction 1, through
gusset 8, the arrangement can be closed through use of closure 30. Of course it can be
reopened, by selective opening of closure arrangement 30, when further use to
dispense material is desired.
Attention is now directed to Figs. 4-8. From a review of these ï¬gures,
further regarding assembly and operation of arrangements such as arrangement 1 will
be understood.
Referring to Fig. 4, bag arrangement 1 is depicted as it could appear
when being ï¬lled with particulate material for use. The front and back panels 5 and 4
are shown secured to one another along side seals 40 and 41. Seals 40 and 41 will, in
the ï¬nished arrangement, form seals 20, 21, 22 and 23, Fig. 1. Gusset 8 is shown
positioned between panels 4 and 5, and is secured in position at regions 26 and 27.
Closure 30 is shown positioned appropriately at end 12.
In general, panels 4 and 5 deï¬ne internal pouch or bag volume 44,
generally deï¬ned by seal 24, base gusset 8 and the side edges along regions 20 and
23. In general, closure 30 is used to close end 12 in volume 44 at a location
"undemeath" gusset 8, when construction 1 is oriented in its "upright" or "use"
orientation, Fig. 1.
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On a side 47 of closure 30 opposite from internal Volume 44, panels 4
and 5 deï¬ne a lower tab 50, sealed at end seal 51 and side seals 52 and 53. The
construction 1 preferably includes a weakened transverse tear line, to facilitate
removal of tab 50, when desired. For the particular arrangement 1 depicted, in panel
4, a score line or perforated line 55 extends transversely across tab 50 from side 52 to
side 53. Construction 1 also includes side notches 56 and 57 oriented in alignment
with perforated (perf) line or score line 55.
For the preferred embodiment, perf line 55 comprises perforations or
scores through panel 4 but not panel 5. However, alternate arrangements are operable.
In general, tab 50 should be sized appropriately, and perf line 55
should be oriented and sized appropriately, so that tab 50 can be readily torn from
arrangement 1 by hand. Advantages from this will be apparent from further
descriptions.
Still referring to Fig. 4, particulate material 60 is shown being loaded
into arrangement 1 through open top end 62. The particulate material 60 may
comprise, for example, grass seed or a plant nutrient. After the ï¬lling operation
illustrated in Fig. 4, the arrangement will typically be sealed by a transverse seal 63
thereacross, to prevent the particulate material 60 from exiting the arrangement
through open end 62. With respect to this, attention is directed to Fig. 5.
Referring to Fig. 5, arrangement 1 is depicted much as it would appear
on a store shelf. Particulate material 60 is shown sealed within the arrangement 1.
The tab 50 is depicted in place and has not yet been torn from the arrangement. End
62 is sealed closed by transverse seal 63, which secures panels 4 and 5 to one another
at this location. For the particular arrangement 1 shown, seal 63 is a heat seal. The
particulate material 60, then, is securely contained with the arrangement 1 between
panels 5 and 4 and is retained by seals 40,4l,63 and 65. In addition, closure
arrangement 30 inhibits distribution of the particulate material into region 66 in tab
50.
Referring to Fig. 6, construction 1 is illustrated during a step of
removing tab 50 therefrom, in order to allow for opening of end 12. Tab 50 is shown
being torn from construction 1, along score line or perforated line 55.
Once tab 50 has been completely removed from the arrangement, the
bag construction 1 may be selectively opened along closure arrangement 30, as
illustrated in Figs. 1 and 7. Referring to Fig. 7, particulate material 60 can now be
distributed through gusset 8, since closure arrangement 30 is open. The distribution
may be accomplished in the manner described above with respect to Fig. 1, i.e. by
grasping of handle 16 and shaking.
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Referring to Fig. 8, after a selected amount of particulate material has
been distributed, the arrangement can be readily reclosed by closure arrangement 30.
Of course it can be reopened as desired, for further distribution of materials.
Attention is now directed to Fig. 9. In Fig. 9 a cross-section taken
generally along line 9-9, Fig. 7, is depicted. In Fig. 9, the gusset 8 can be viewed
positioned between panels 4 and 5.
In Figs. 10 and 11, a front elevational view and a side elevational view
of construction 1, when opened and positioned for distribution of particulate material
therein, are depicted.
Attention is now directed to Fig. 12. In Fig. 12 an alternate
embodiment of a bag arrangement is illustrated generally at 70. Arrangement 70, Fig.
12, is generally analogous to arrangement 1, Figs. 1-1 1, and comprises ï¬rst and
second opposite panels 71 and 72, and bottom gusset 73. The arrangement 70
includes removable tab 75; closure arrangement 76; and, edge seals 77,78,79 and 80.
In contrast to the arrangement of Figs. 1-11, which included transverse
top seal 63 therein, the arrangement 70, of Fig. 12, includes a second openable and
resealable closure mechanism 85 in a top end 86 thereof, as a form of top seal.
Closure mechanism 85 may comprise a conventional rib-and-trough closure
arrangement 86, similar to the arrangement preferred for closure arrangement 30,
Figs. 1-11.
The arrangement of Fig. 12 is a construction which can be reï¬lled by
the user, periodically, for more than one use. That is, it can be operated in the same
manner as the arrangement of Figs. 1-11, for distribution of particulate material. In
addition, periodically closure mechanism 85 can be selectively opened, to open top
end 86. The user can then reï¬ll the bag arrangement 70, for example from a feed
supply of material to be distributed, if desired.
Preparation of Arrangements
While a variety of means may be utilized to prepare arrangements
according to Figs. 1-12, herein a preferred convenient method is described.
According to the method, two webs of material, each preferably being
of approximately the width and preferably continuous are provided. During the
process, the two webs are brought together, in opposition to one another. It is these
two webs, when cut in sections, that form the opposite panels, for example panels 4
and 5, Fig. 1 of the arrangement. In preferred applications, the longitudinal direction
of the two webs, i.e. the continuous direction, will in general correspond to the
transverse direction of the arrangement when completed.
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In a follow-up step, the two webs are brought together in opposition,
ultimately to comprise panel sections 4 and 5. During the step of bringing the webs
together, a continuous strip of gusset material is preferably fed therebetween along an
appropriate edge. The gusset material may be pre-punched to include the distribution
apertures. Alternatively, the punching operation may take place after the trimming
and sealing steps. A continuous strip comprising the closure arrangement, i.e. rib~
and-trough closure means, is also fed between the panel sections.
In later steps of the process, a continuous composite which preferably
comprises: a first web; a second web opposed to the ï¬rst web; and, a continuous
gusset web, with one or two closure arrangements depending on the embodiment
involved, is cut, trimmed and sealed, preferably by heat sealing, into a pouch
arrangement corresponding to the arrangement 1 of Fig. l with one end open, for
example corresponding to end 4 Fig. 4.
In some applications, it may be desirable to form the two webs (to be
brought together) from a single roll or web of material. This can be done, for
example, by providing a primary web which is split in half, longitudinally, to form
two webs. These webs can then be utilized as the two webs in the process.
A schematic illustrating the above methodology is illustrated in FIG.
9 of U.S. Patent Nos. 5,059,036; 5,147,272; and 5,254,073. Of course, provisions are
made for providing apertures in the base gusset material, for providing a carry handle,
and for providing an additional seal in the region of the base gusset.
It is noted that Totani Giken Kegyo Co., Ltd. of Kyoto, Japan produces
a pouch making machine under the designation BH-6008 which can be utilized to
form two panel pouches having a base gusset. Such an apparatus can be modiï¬ed to
provide for pouch arrangement according to the present invention, by including
appropriate feeds for rib-and-trough closure arrangements and appropriate cutting and
sealing equipment.
Pouch arrangements according to the present invention may be
provided with a variety of outer dimensions, depending on the intended use. A
particularly convenient arrangement has dimensions by 12 inches by 15.5 inches.
Pouch arrangements according to the present invention may be
manufactured from a variety of materials. It is particularly advantageous, however,
that they be constructed from relatively thin, strong material such as polyester
biaxially oriented nylon linear low density polyethylene (PET/BON/LLDPE) ï¬lm.
Preferred embodiments which are particularly useful, and which include advantages
according to the present invention, may be constructed wherein the ï¬rst and second
WO 98/09884
20
25
CA 02264922 1999-03-05
PCT/US97l15603
10
panel portions comprise first and second sheets of PET/BON/LLDPE 3-ply, each
having a thickness within a range of about 7 mils. Similar material may be utilized
for the base gusset (with appropriate apertures or slits therein). Preferably heat
sealable film is utilized, so that the means for securing the panel portions to another,
securing the closure means and panel portions, and securing the base gusset in place,
is by heat seals without the need for additional adhesive.
The film materials are available in 3 substrates and are laminated
together in a conventional adhesive lamination process. The polyester substrate has
an adhesive applied, then the nylon substrate is applied. The polyester substrate and
nylon substrate are laminated together. This resulting layer is coated with the linear
low density polyethylene substrate, and then laminated together.
The first substrate, polyester, is available from DuPont. The second
substrate, biaxially oriented nylon, is available from Allied Signal. The third
substrate, linear low density polyethylene, is available from Consolidated
Thermoplastics of Chippewa Falls, Wisconsin.
For arrangements according to the present invention, the ï¬owable
material, when it is a particulate material, may be in a variety of forms including, for
example pellets, grains, seeds or powders. In general the maximum average
dimension of the ï¬owable particulate material should be sufï¬ciently smaller than the
average size of the apertures in the base gusset member, to facilitate distribution, i.e.
ï¬ow of the particulate material through the base gusset member when desired. A
variety of pattern of holes or apertures in the base gusset member, shapes of such
apertures, sizes of such apertures, and population density of distribution of such
apertures may be used. In general, for typical preferred embodiments, it is foreseen
that round apertures of about 0.1865 inch in diameter will be useful for many
application, such as for example distribution of grass seeds or small granular material.
In such constructions generally the base gusset material will be formed from a sheet
having an average population of such apertures of about 8 per square inch.
Claims (9)
1. A bag construction comprising:
(a) first and second opposed panel sections;
(i) each of said panel sections having a first end edge, a second end edge, and opposite side edge portions extending between said first and second end edges;
(ii) said panel sections being secured to one another along at least a portion of said panel section side edge portions, to define a bag construction interior and opposite side edges;
(b) a base gusset member;
(i) said base gusset member being oriented in extension between said first and second panel sections, across an end of said bag construction interior;
(ii) said base gusset member including distribution apertures therein;
(c) a handle; said handle including an aperture positioned to extend through said first and second panel sections at a location oriented between said base gusset member and said first end edges of said first and second panel sections;
(i) said base gusset member being oriented between sand second end edges and said handle;
(d) a transverse openable and reclosable closure arrangement extending between said opposite side edge portions;
(i) said openable and reclosable closure arrangement comprising a rib-and-trough closure arrangement to selectively open and selectively seal said first panel section to said second panel section;
(ii) said rib-and-trough. closure arrangement being oriented between said base gusset member and said second end edges; and (e) a first transverse end seal sealing said first and second panel sections to one another, (i) said first transverse end seal being oriented along said second end edges of said first and second panel sections.
(a) first and second opposed panel sections;
(i) each of said panel sections having a first end edge, a second end edge, and opposite side edge portions extending between said first and second end edges;
(ii) said panel sections being secured to one another along at least a portion of said panel section side edge portions, to define a bag construction interior and opposite side edges;
(b) a base gusset member;
(i) said base gusset member being oriented in extension between said first and second panel sections, across an end of said bag construction interior;
(ii) said base gusset member including distribution apertures therein;
(c) a handle; said handle including an aperture positioned to extend through said first and second panel sections at a location oriented between said base gusset member and said first end edges of said first and second panel sections;
(i) said base gusset member being oriented between sand second end edges and said handle;
(d) a transverse openable and reclosable closure arrangement extending between said opposite side edge portions;
(i) said openable and reclosable closure arrangement comprising a rib-and-trough closure arrangement to selectively open and selectively seal said first panel section to said second panel section;
(ii) said rib-and-trough. closure arrangement being oriented between said base gusset member and said second end edges; and (e) a first transverse end seal sealing said first and second panel sections to one another, (i) said first transverse end seal being oriented along said second end edges of said first and second panel sections.
2. A bag construction according to claim 1 further including a weakened, transverse tear line extending across said bag construction and positioned between said rib-and-though closure arrangement and said first transverse end seal.
3. A bag construction according to claim 2 further including:
a first tear notch aligned with said transverse tear line and oriented in a first of said bag construction side edges; and a second tear notch aligned with said transverse tear line and oriented in a second of said bag construction side edges.
a first tear notch aligned with said transverse tear line and oriented in a first of said bag construction side edges; and a second tear notch aligned with said transverse tear line and oriented in a second of said bag construction side edges.
4. A bag construction according to any one of claims 1-3 further including a second transverse seal oriented to seal said first and second panel sections to one another; said second transverse seal being positioned to extend transversely across said bag construction at a location between said base gusset member and said handle aperture.
5. A bag construction according to any one of claims 1-4 wherein said base gusset member comprises material having an average of 8 holes per square inch.
6. A bag construction according to any one of claims 1-5 wherein said base gusset distribution apertures comprise holes having an average diameter of about 0.1865 inch.
7. A bag construction according to any one of claims 1-4 further including flowable particulate material positioned in said bag construction interior and located, at least in part, between said base gusset member and said first end edges of said first and second panel sections;
said flowable particulate material having a maximum average dimension that is sufficiently smaller than an average size of said distribution apertures in said base gusset member, so that said flowable particulate material can be readily, selectively distributed through said base gusset member.
said flowable particulate material having a maximum average dimension that is sufficiently smaller than an average size of said distribution apertures in said base gusset member, so that said flowable particulate material can be readily, selectively distributed through said base gusset member.
8. A, bag construction according to claim 7 wherein said flowable particulate material is selected from the group consisting of pellets, grains, and powders.
9. A bag construction according to claim 7 wherein said flowable particulate material is selected from the group consisting of seeds, plant nutrient, insect dust, and chalk.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/709,163 | 1996-09-06 | ||
US08/709,163 US5709479A (en) | 1996-09-06 | 1996-09-06 | Bag construction for distributing material |
PCT/US1997/015603 WO1998009884A1 (en) | 1996-09-06 | 1997-09-05 | Bag for distributing flowable material |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2264922A1 CA2264922A1 (en) | 1998-03-12 |
CA2264922C true CA2264922C (en) | 2006-10-10 |
Family
ID=24848734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002264922A Expired - Lifetime CA2264922C (en) | 1996-09-06 | 1997-09-05 | Bag for distributing flowable material |
Country Status (8)
Country | Link |
---|---|
US (3) | US5709479A (en) |
EP (1) | EP0932559B1 (en) |
JP (1) | JP2001500093A (en) |
AT (1) | ATE209594T1 (en) |
AU (1) | AU4251397A (en) |
CA (1) | CA2264922C (en) |
DE (1) | DE69708675T2 (en) |
WO (1) | WO1998009884A1 (en) |
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DE9303805U1 (en) * | 1993-03-15 | 1993-06-09 | Blumenkron, Jorge Lopez, Puebla, Mx |
-
1996
- 1996-09-06 US US08/709,163 patent/US5709479A/en not_active Expired - Lifetime
-
1997
- 1997-09-05 WO PCT/US1997/015603 patent/WO1998009884A1/en active IP Right Grant
- 1997-09-05 DE DE69708675T patent/DE69708675T2/en not_active Expired - Lifetime
- 1997-09-05 AT AT97940824T patent/ATE209594T1/en not_active IP Right Cessation
- 1997-09-05 JP JP10512912A patent/JP2001500093A/en active Pending
- 1997-09-05 EP EP97940824A patent/EP0932559B1/en not_active Expired - Lifetime
- 1997-09-05 CA CA002264922A patent/CA2264922C/en not_active Expired - Lifetime
- 1997-09-05 AU AU42513/97A patent/AU4251397A/en not_active Abandoned
- 1997-12-22 US US08/996,353 patent/US5882120A/en not_active Expired - Lifetime
-
1999
- 1999-03-15 US US09/268,224 patent/US6126318A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0932559A1 (en) | 1999-08-04 |
EP0932559B1 (en) | 2001-11-28 |
DE69708675D1 (en) | 2002-01-10 |
US5882120A (en) | 1999-03-16 |
DE69708675T2 (en) | 2002-08-22 |
ATE209594T1 (en) | 2001-12-15 |
US5709479A (en) | 1998-01-20 |
AU4251397A (en) | 1998-03-26 |
US6126318A (en) | 2000-10-03 |
WO1998009884A1 (en) | 1998-03-12 |
CA2264922A1 (en) | 1998-03-12 |
JP2001500093A (en) | 2001-01-09 |
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EEER | Examination request | ||
MKEX | Expiry |
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