Bag construction with flat bottom having removable layer
A bag construction for use to distribute flowable material is provided. The bag construction generally includes a first and second panel sections and one or more side gusset panel sections. An internal gusset member is positioned inside the bag construction, between the first and second panel sections. The internal gusset member includes at least one aperture therein for distribution of flowable materials. In preferred embodiments, a bag construction includes an openable and reclosable closure arrangement and an anti-tamper arrangement.
The present invention relates to a bag or pouch construction. Embodiments disclosed herein relate to a bag construction having side gussets and an internal gusset with an aperture. The bag construction may be filled with dispersible materials, wherein the arrangement allows a convenient way of distributing the dispersible materials. The present disclosure also relates to a bag construction which allows a convenient way of storing dispersible materials.
BACKGROUNDA wide variety of items comprise materials which, in use, are dispersed or spread over an area. Many of these items include dry powder or particulate materials. The term “dispersible material” as used herein is intended at least to include pellets, grains, powders, gels, liquids and any combinations thereof. Examples of these include, but not limited to: deicing salts; seeds; insecticides; and chalk. Some improved arrangements for spreading particulate materials have been disclosed, for example, in U.S. Pat. Nos. 5,882,120 and 5,709,479. The prior art bag constructions may be difficult to store and arrange because the bottom portion does not have an arrangement which allows the prior art bag constructions to stand upright. A storage bag which stands upright for product storage and at point-of-sale is desirable because such a bag construction may provide an easier method of storing and/or stacking of the bag constructions to the distributors and retail merchants. It is also advantageous to have a bag construction that is capable of standing upright at the retail level because it may provide a simplified arrangement. It is again desirable for bag constructions to stand upright at a point-of-sale so that a consumer may readily view the bag constructions for contemplating the purchase thereof. Additionally, filling the prior art bag constructions by machines may be difficult because the prior art bag construction lacks expandability along the sides or the bottom portion. This may result in difficulties in filling the prior art bag constructions and/or less volume amount of materials being filled into the prior art bag constructions. Furthermore, the rib-and-trough closure system of the prior art bag constructions may be difficult to operate after using the prior art bag construction to distribute materials because particulate materials may get stuck inside the trough portion of the closure system. Undesirably, this may cause a lack of a good seal which can lead to leaks of the particulate materials and/or contamination of the particulate materials during storage.
Accordingly, improved arrangements for distributing dispersible materials is desirable.
SUMMARYBag construction arrangements are disclosed herein. An embodiment of a bag construction includes first and second opposed panels or panel sections. In one embodiment, each of the panel sections has a first end edge, a second end edge, and a first side edge and a second side edge. The first end edge opposes the second end edge. The first side edge opposes the second side edge. The first side edge extends from the first end edge to the second end edge. The second side edge extends from the first end edge to the second end edge. Thus, first and second end edges and first and second side edges form a plane which generally defines a panel section of the embodiment.
The embodiment also includes at least one side gusset panel section. The side gusset panel section has a first end edge, a second end edge, a first side edge and a second side edge. The first end edge opposes the second end edge. The first side edge opposes the second side edge. The first side edge extends from the first end edge to the second end edge. The second side edge extends from the first end edge to the second end edge. At least a portion of the first side edge of the first panel section is secured to at least a portion of the second side edge of the side gusset panel section. At least a portion of the first side edge of the side gusset panel section is secured to at least a portion of the second side edge of the second panel section. This arrangement generally defines a bag construction interior.
The embodiment includes an internal gusset member, which is positioned inside the bag construction interior. The internal gusset member has at least one distribution aperture, which may be one or more holes, slits, or any combination of these and other apertures.
In another embodiment, it is preferred that the side gusset panel sections have a fold line extending, at least partially, between the first and second side edges of the first and second panel sections.
Another embodiment includes a transverse seal.
A still further embodiment includes an anti-tamper arrangement. The anti-tamper arrangement may include a tear member sealed to each of the first and second panel sections. The anti-tamper arrangement may be positioned inside the bag construction interior. Preferably, the anti-tamper arrangement is positioned between the first and second panel sections and also between the second end edge of the first panel section and the internal gusset member.
A bag construction 10 according to one embodiment is shown in
Referring to
Still referring to
Still referring to
The second panel section 14 comprises a first end edge 32, a second end edge 34, a first side edge 36, and a second side edge 38. The first end edge 32 opposes the second end edge 34. The first side edge 36 opposes the second side edge 38.
The first side gusset panel section 16 comprises a first end edge 42, a second end edge 44, a first side edge 46, and a second side edge 48. The first end edge 42 opposes the second end edge 44. The first side edge 46 opposes the second side edge 48.
The second side gusset panel section 18 comprises a first end edge 52, a second end edge 54, a first side edge 56, and a second side edge 58. The first end edge 52 opposes the second end edge 54. The first side edge 56 opposes the second side edge 58.
Referring still to
In
Such arrangements are available, for example, from Pactive Corporation. The sliding zipper rails 68, 69 may be secured to the bag construction 10 by a variety of appropriate means, for example by mechanical means, heat sealing, with an adhesive, or other convenient manners.
Alternatively, a bottom gusset panel section 200 which includes an openable and reclosable closure arrangement 202 may be sealed to second ends of first and second panel sections 12, 14, as illustrated in
In
Attention is now directed to
In
Alternatively, an anti-tamper arrangement may be an integral part of a bottom gusset panel section 200 which also includes a transverse openable and reclosable closure arrangement 204, as disclosed below.
In
As illustrated in
Also illustrated in
Closure arrangements including an anti-tamper arrangement are available, for example, under the trademark Slide-Rite® from Pactive Corporation.
It is preferable, as shown in
Attention is now directed to
Referring to
Referring to
Referring to
Referring to
Still referring to
The second panel section 504 comprises a first end edge 526, a second end edge 528, a first side edge 530, and a second side edge 532. The first end edge 526 opposes the second end edge 528. The first side edge 530 opposes the second side edge 532. The side gusset panel section 506 comprises a first end edge 534, a second end edge 536, a first side edge 538, and a second side edge 540. The first end edge 534 opposes the second end edge 536. The first side edge 538 opposes the second side edge 540.
Referring still to
The internal gusset member 508, as illustrated in
Bag constructions may be manufactured from a variety of materials. It is particularly advantageous, however, that they be constructed, at least partly, from relatively thin, strong material such as polyester biaxially oriented nylon liner low density polyethylene (PET/BON/LLDPE) film. Preferred embodiments which are particularly useful, and which include advantages according to the present invention, may be constructed wherein the first and second panel sections comprises first and second sheets of PET/BON/LLDPE 3-ply. Alternatively, a combination of PET/BON/LLDPE layer with one or more layer of different melting temperature may also be used. Similar materials may be utilized for the internal gusset member (with appropriate aperture or slit therein). Preferably heat sealable film is utilized, so that the means for securing the panel sections to another, securing the closure means and panel sections, and securing the internal gusset member in place, is by heat seals without the need for additional adhesive.
The film materials are available in three substrates and may be 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 liner 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 Signals. The third substrate, linear low density polyethylene, is available from Consolidated Thermoplastics of Chippewa Falls, Wis.
A preferred embodiment has been described for illustrative purposes. Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as claimed and disclosed, including the full scope of equivalents thereof.
Claims
1. A bag construction comprising:
- (a) first and second panel sections, each comprising: (i) a first end edge, a second end edge, a first side edge, and a second side edge; (ii) wherein the first end edge oppose the second end edge; (ii) wherein the first side edge oppose the second side edge; (iii) wherein the first side edge extends from the first end edge to the second end edge; and (iv) wherein the second side edge extends from the first end edge to the second end edge;
- (b) a first side gusset panel section comprising: (i) a first end edge, a second end edge, a first side edge, and a second side edge; (ii) wherein the first end edge opposes the second end edge; (ii) wherein the first side edge opposes the second side edge; (iii) wherein the first side edge extends from the first end edge to the second end edge; and (iv) wherein the second side edge extends from the first end edge to the second end edge;
- (c) said panel sections and said side gusset panel section being secured in the following manner to define a bag construction interior: (i) at least a portion of the first panel section's first side edge being secured to at least a portion of the first side gusset panel section's second side edge; (ii) at least a portion of the first side gusset panel section's first side edge being secured to at least a portion of the second panel section's second side edge; and
- (d) an internal gusset member; (i) said internal gusset member positioned inside said bag construction interior, (ii) said internal gusset member including at least one distribution aperture therein.
2. A bag construction according to claim 1, further including:
- (a) a second side gusset panel section comprising: (i) a first end edge, a second end edge, a first side edge, and a second side edge; (ii) wherein the first end edge opposes the second end edge; (ii) wherein the first side edge opposes the second side edge; (iii) wherein the first side edge extends from the first end edge to the second end edge; (iv) wherein the second side edge extends from the first end edge to the second end edge; and
- (b) said panel sections and said side gusset panel sections being further secured in the following manner: (i) at least a portion of the second panel section's first side edge being secured to at least a portion of the second side gusset panel section's second side edge; and (ii) at least a portion of the second side gusset panel section's first side edge being secured to at least a portion of the first panel section's second side edge.
3. A bag construction according to claim 2, further including:
- a bottom gusset panel section comprising: (i) a fold line; (i) an anti-tamper arrangement including a tearable portion situated at least partly along said fold line; and (ii) a transverse openable and reclosable closure arrangement;
- wherein said bottom gusset panel section is sealed at least partly to said first and second panel sections at said second end edges of said first and second panel sections.
4. A bag construction according to claim 2, further including:
- a transverse openable and reclosable closure arrangement extending between said first and second panel sections at said second end edges of said first and second panel sections.
5. A bag construction according to claim 4, further including:
- an anti-tamper arrangement; (i) said anti-tamper arrangement including a tear member sealed, at least partly, to each of said first and second panel sections; and (ii) said anti-tamper arrangement being positioned between said transverse openable and reclosable closure arrangement and said internal gusset member.
6. A bag construction according to claim 1, further including:
- (a) said internal gusset member being constructed of a flexible material;
- (b) a transverse seal oriented to seal at least a portion of said first and second panel sections to each other; (i) said transverse seal being positioned to extend transversely across said bag construction at a location between said first end edges of first and second panel sections and said internal gusset member;
- (c) a transverse openable and reclosable closure arrangement extending between said first and second panel sections at said second end edges of said first and second panel sections; and
- (d) an anti-tamper arrangement; (i) said anti-tamper arrangement positioned, at least partly, inside said bag construction interior; (ii) said anti-tamper arrangement including a tear member sealed, at least partly, to each of said first and second panel sections; and (iii) said anti-tamper arrangement being positioned between said transverse openable and reclosable closure arrangement and said internal gusset member.
7. A bag construction comprising:
- (a) first and second panel sections, and first and second side gusset panel sections, each comprising: (i) a first end edge, a second end edge, a first side edge, and a second side edge; (ii) wherein the first end edge oppose the second end edge; (ii) wherein the first side edge oppose the second side edge; (iii) wherein the first side edge extends from the first end edge to the second end edge; (iv) wherein the second side edge extends from the first end edge to the second end edge;
- (b) said panel sections and said side gusset panel sections being secured in the following manner to define a bag construction interior: (i) at least a portion of the first panel section's first side edge being secured to at least a portion of the first side gusset panel's second side edge; (ii) at least a portion of the first side gusset panel section's first side edge being secured to at least a portion of the second panel's second side edge; (iii) at least a portion of the second panel section's first side edge being secured to at least a portion of the second side gusset panel's second side edge; (iv) at least a portion of the second side gusset panel section's first side edge being secured to at least a portion of the first panel's second side edge;
- (c) said first and second side gusset panel sections having a fold line extending at least partially between said first and second side edges of said first and second panel sections;
- (d) an internal gusset member; (i) said internal gusset member positioned, at least partly, inside said bag construction interior; (ii) said internal gusset member including at least one distribution aperture therein; (iii) said internal gusset member being constructed of a flexible material; and
- (e) a means for sealing transversely across said bag construction at a location between said second edges of first and second panel sections and said internal gusset member.
8. A bag construction according to claim 7, further including:
- a bottom gusset panel section comprising: (i) a fold line; (i) an anti-tamper arrangement including a tearable portion situated at least partly along said fold line; and (ii) a transverse openable and reclosable closure arrangement;
- wherein said bottom gusset panel section is sealed at least partly to said first and second panel sections at said second end edges of said first and second panel sections.
9. A bag construction according to claim 7 further including:
- an anti-tamper arrangement; (i) said anti-tamper arrangement positioned inside said bag construction interior, (ii) said anti-tamper arrangement including a tear member sealed to each of said first and second panel sections; and (iii) said anti-tamper arrangement being positioned between said second end edge of said first panel section and said internal gusset member.
10. A bag construction according to claim 7 wherein:
- said side gusset panel sections are formed of at least two different layers of polymers.
11. A bag construction comprising:
- (a) first and second panel sections, and first and second side gusset panel sections, each comprising: (i) a first end edge, a second end edge, a first side edge, and a second side edge; (ii) wherein the first end edge oppose the second end edge; (ii) wherein the first side edge oppose the second side edge; (iii) wherein the first side edge extends from the first end edge to the second end edge; (iv) wherein the second side edge extends from the first end edge to the second end edge;
- (b) said panel sections and said side gusset panel sections being secured in the following manner to define a bag construction interior: (i) at least a portion of the first panel section's first side edge being secured to at least a portion of the first side gusset panel section's second side edge; (ii) at least a portion of the first side gusset panel section's first side edge being secured to at least a portion of the second panel section's second side edge; (iii) at least a portion of the second panel section's first side edge being secured to at least a portion of the second side gusset panel section's second side edge; (iv) at least a portion of the second side gusset panel section's first side edge being secured to at least a portion of the first panel section's second side edge;
- (c) said first and second side gusset panel sections having a fold line extending at least partially between said first and second side edges of said first and second panel sections;
- (d) an internal gusset member; (i) said internal gusset member positioned inside said bag construction interior between the first and second panel sections; (ii) said internal gusset member including at least one distribution aperture therein; (iii) said internal gusset member being constructed, at least in part, of a flexible material;
- (e) a transverse seal oriented to seal at least a portion of said first and second panel sections to each other, (i) said transverse seal being positioned to extend transversely across said bag construction at a location between said first end edges of first and second panel sections and said internal gusset member;
- (f) a transverse openable and reclosable closure arrangement extending between said first and second panel sections at said second end edges of said first and second panel sections; and
- (g) an anti-tamper arrangement; (i) said anti-tamper arrangement positioned at least partly inside said bag construction interior; (ii) said anti-tamper arrangement including a tear member sealed to each of said first and second panel sections; and (iii) said anti-tamper arrangement being positioned between said transverse openable and reclosable closure arrangement and said internal gusset member.
12. A bag construction according to claim 11 wherein:
- said side gusset panel sections are formed of at least two different layers of polymers.
Type: Application
Filed: Mar 30, 2007
Publication Date: Oct 2, 2008
Inventor: Gary Michael Bell (Crystal, MN)
Application Number: 11/731,754
International Classification: B65D 33/00 (20060101); B65D 30/20 (20060101); B65D 33/16 (20060101);