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Patent Searching and Data


Title:
DUNNAGE BAG ARRANGEMENT
Document Type and Number:
WIPO Patent Application WO/2015/111021
Kind Code:
A1
Abstract:
The invention discloses a dunnage bag arrangement for securing loads, which includes an inflatable dunnage bag having a gastight inflatable bladder, a top edge, a bottom edge, a first side edge and a second side edge; and at least one inflation valve adapted for inflating the gastight inflatable bladder and being located along the first side edge and/or the second side edge.

Inventors:
PANSEGROUW, Bester Jacobus (4 Paddy Close, 7908 Ottery, ZA)
Application Number:
IB2015/050592
Publication Date:
July 30, 2015
Filing Date:
January 27, 2015
Export Citation:
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Assignee:
STOPAK (PTY) LTD (4 Paddy Close, 7908 Ottery, ZA)
International Classes:
B65D81/05; B60P7/06; B60P7/16; B61D45/00
Domestic Patent References:
WO2003078251A22003-09-25
Foreign References:
US3939995A1976-02-24
US20020136614A12002-09-26
US7137765B12006-11-21
CA2254253C2004-06-29
Other References:
See also references of EP 3099597A4
Attorney, Agent or Firm:
GERNTHOLTZ, Otto Carl (Postbox 8, 8000 Cape Town, ZA)
Download PDF:
Claims:
PATENT CLAIMS

1 . A dunnage bag arrangement for securing loads, which includes

(a) an inflatable dunnage bag having a gastight inflatable bladder, a top edge, a bottom edge, a first side edge and a second side edge; and

(b) at least one inflation valve adapted for inflating the gastight inflatable bladder and being located along the first side edge and/or the second side edge.

2. An arrangement as claimed in claim 1 , in which the inflation valve is preferably located along the first side edge and/or the second side edge and/or at least 5mm to 30 mm from the top edge and/or the bottom edge.

3. An arrangement as claimed in claim 1 or claim 2, in which the dunnage bag includes at least one reinforcing sleeve adapted to surround the gastight inflatable bladder and being made of at least one material ply, the sleeve having a first opening and a second opening, and the sleeve being folded and sealed and/or stitched to close off at least one of the openings.

4. An arrangement as claimed in claim 3, in which the sleeve is made of at least one material ply selected from the material group consisting of paper, plastics material, woven PP (polypropylene), HDPE (high-density polyethylene) and PVC (polyvinylchloride).

5. An arrangement as claimed in claim 3 or claim 4, in which in the case of paper sleeves, the sleeve ends consist of flaps formed by cutting the sleeve at the opening being closed and in the case of woven polypropylene sleeves, the sleeve ends are stitched.

6. An arrangement as claimed in claim 5, in which the flaps at one end are folded towards each other to close off the respective opening and/or at one end are glued to each other to permanently close off the respective opening.

7. An arrangement as claimed in any one of the preceding claims, in which the dunnage bag is provided with one to eight sleeves.

8. An arrangement as claimed in any one of the preceding claims, in which the dunnage bag includes an inner polyethylene layer or sleeve and an outer woven polyethylene layer or sleeve.

9. An arrangement as claimed in any one of the preceding claims, in which the inflatable bladder is made of polyethylene.

10. An arrangement as claims in any one of the preceding claims, in which the dunnage bag is adapted to be used in voids between 0.5 inch and 75 inches.

1 1 . An arrangement as claimed in any one of the preceding claims, in which the dunnage bag is substantially rectangular in shape.

12. An arrangement as claimed in any one of the preceding claims, in which the dunnage bag is disposable.

13. An arrangement as claimed in any one of the preceding claims, in which the dunnage bag is adapted to be applicable in conjunction with void fillers and/or be applicable in conjunction with friction panels.

14. An arrangement as claimed in any one of the preceding claims, in which at least 50% of the exterior surface area of the dunnage bag is adapted in use to be in contact with a load to be secured.

15. An arrangement as claimed in claim 14, in which the contact is direct and/or indirect.

16. A method of securing load, which includes the steps (a) of providing in a void between loads to be secured, an inflatable dunnage bag having a gastight inflatable bladder, and having a top edge, a bottom edge, a first side edge and a second side edge;

(b) of providing at least one inflation valve adapted for inflating the gastight inflatable bladder and being located along the first side edge and/or the second side edge; and

(c) of inflating the inflatable dunnage bag, by means of the inflation valve, in order to secure the loads.

17. A dunnage bag arrangement for securing loads substantially as hereinbefore described with reference to the accompanying drawings.

18. A method of securing load substantially as hereinbefore described with reference to the accompanying drawings.

Description:
DUNNAGE BAG ARRANGEMENT

FIELD OF INVENTION

The present invention relates to a dunnage bag arrangement.

More particularly, the present invention relates to an inflatable dunnage bag arrangement.

BACKGROUND TO INVENTION

Conventional inflatable and disposable dunnage bags include a gastight bladder, usually constructed from polyethylene material, surrounded by an outer protective and supportive casing consisting of at least one ply of paper material. These dunnage bags are used to fill spaces between cargo or between the cargo and the walls of freight carriers in order to prevent the cargo from shifting and damaging either the cargo itself and/or the walls of the freight carrier. The dunnage bags are typically placed between the cargo in a deflated condition and are subsequently inflated with a gas. The pressure of the gas in the dunnage bags is determined by the application, the size and wall composition of the dunnage bags.

The problem with known dunnage bags is that some of the voids are so small that, when in the deflated position the inflation valve is in an inaccessible position, for example too low. The disadvantages are that it is frustrating for the operator, is time consuming, sometimes the bag has to be deflated to reposition correctly and sometimes it take two operators to position and inflate a dunnage bag.

It is an object of the invention to suggest a dunnage bag arrangement, which will assist in overcoming these problems. SUMMARY OF INVENTION

According to the invention, a dunnage bag arrangement for securing loads, includes

(a) an inflatable dunnage bag having a gastight inflatable bladder, a top edge, a bottom edge, a first side edge and a second side edge; and

(b) at least one inflation valve adapted for inflating the gastight inflatable bladder and being located along the first side edge and/or the second side edge.

The inflation valve may preferable be located along the first side edge and/or the second side edge.

The inflation valve may be preferable located at least 5 to 30 mm from the top edge and/or the bottom edge.

Also according to the invention, a method of securing load, includes the steps

(a) of providing in a void between loads to be secured, an inflatable dunnage bag having a gastight inflatable bladder, and having a top edge, a bottom edge, a first side edge and a second side edge;

(b) of providing at least one inflation valve adapted for inflating the gastight inflatable bladder and being located along the first side edge and/or the second side edge; and

(c) of inflating the inflatable dunnage bag, by means of the inflation valve, in order to secure the loads.

The dunnage bag may include at least one reinforcing sleeve adapted to surround the gastight inflatable bladder and being made of at least one material ply, the sleeve having a first opening and a second opening, and the sleeve being folded and sealed and/or stitched to close off at least one of the openings.

The sleeve may be made of at least one material ply selected from the material group consisting of paper, plastics material, woven PP (polypropylene), HDPE (high-density polyethylene) and PVC (polyvinylchloride).

In the case of paper sleeves, the sleeve ends may consist of flaps formed by cutting the sleeve at the opening being closed.

In the case of woven polypropylene sleeves, the sleeve ends are stitched.

The flaps at one end may be folded towards each other to close off the respective opening and/or at one end may be glued to each other to permanently close off the respective opening.

The dunnage bag may be provided with one to eight sleeves.

The dunnage bag may include an inner polyethylene layer or sleeve and an outer woven polypropylene layer or sleeve.

The inflatable bladder may be made of polyethylene.

The inflatable bladder may be provided with an inflation valve.

The inflation valve may protrude to the exterior at one of the openings.

The dunnage bag may be used in voids between 0.5 inch and 75 inches.

The dunnage bag may be substantially rectangular in shape.

The dunnage bag may be disposable. The dunnage bag may be applicable in conjunction with void fillers and/or be applicable in conjunction with friction panels.

At least 50% of the exterior surface area of the dunnage bag may be adapted in use to be in contact with a load to be secured.

The contact may be direct and/or indirect.

BRIEF DESCRIPTION OF DRAWINGS

The invention will now be described by way of example with reference to the accompanying schematic drawings.

In the drawings there is shown in:

Figure 1 : a front side view of the dunnage bag arrangement according to the invention before being inflated; and

Figure 2: a side view of the dunnage bag arrangement as seen from arrow II in

Figure 1 .

DETAILED DESCRIPTION OF DRAWINGS

Referring to the drawings, there is shown a dunnage bag arrangement, generally indicated by reference numeral 10, in accordance with the invention.

The dunnage bag arrangement 10 for securing loads, includes

(a) an inflatable dunnage bag 12 having a gastight inflatable bladder, a top edge 14, a bottom edge 16, a first side edge 18 and a second side edge 20; and (b) an inflation valve 22 adapted for inflating the gastight inflatable bladder and being located along the second side edge 20.

The inflation valve 22 is preferably located at least 5 to 30 mm from the top edge 14.

The dunnage bag 12 includes at least one reinforcing sleeve adapted to surround the gastight inflatable bladder and being made of at least one material ply, the sleeve having a first opening and a second opening, and the sleeve being folded and sealed and/or stitched to close off at least one of the openings.

The sleeve is made of at least one material ply selected from the material group consisting of paper, plastics material, woven PP (polypropylene), HDPE (high-density polyethylene) and PVC (polyvinylchloride). In the case of paper sleeves, the sleeve ends consist of flaps formed by cutting the sleeve at the opening being closed. The flaps at one end are folded towards each other to close off the respective opening. The flaps at one end are glued to each other to permanently close off the respective opening. In the case of woven polypropylene sleeves, the sleeve ends are stitched.

The dunnage bag arrangement can be provided with one to eight sleeves. The dunnage bag may include an inner polyethylene layer or sleeve and an outer woven polypropylene layer or sleeve. The inflatable bladder is made of polyethylene. The inflatable bladder is provided with an inflation valve. The inflation valve protrudes to the exterior at one of the openings. The dunnage bag arrangement can be used in voids between 0.5 inch and 75 inches. The dunnage bag arrangement can be substantially rectangular in shape. The dunnage bag arrangement can be disposable. The dunnage bag arrangement is applicable in conjunction with void fillers. The dunnage bag arrangement is applicable in conjunction with friction panels. At least 50% of the exterior surface area of the dunnage bag can be adapted to be in contact with a load to be secured. The contact can be direct or indirect.

Hence the dunnage bag arrangement 10 according to the invention, provides a method of securing loads, which includes the steps

(a) of providing in a void between loads to be secured, an inflatable dunnage bag 12 having a gastight inflatable bladder, and having a top edge 14, a bottom edge 16, a first side edge 18 and a second side edge 20;

(b) of providing at least one inflation valve 22 adapted for inflating the gastight inflatable bladder and being located along the first side edge 18 and/or the second side edge 20; and

(c) of inflating the inflatable dunnage bag, by means of the inflation valve 22, in order to secure the loads.

This positioning of the inflation valve 22 facilitates the operator to inflate the dunnage bag in small and narrow and low inaccessible voids.