U.S. patent application number 10/548954 was filed with the patent office on 2006-08-03 for flexible bag with hermetically re-closeable opening.
This patent application is currently assigned to ICA S.P.A.. Invention is credited to Gino Rapparini.
Application Number | 20060171611 10/548954 |
Document ID | / |
Family ID | 33105022 |
Filed Date | 2006-08-03 |
United States Patent
Application |
20060171611 |
Kind Code |
A1 |
Rapparini; Gino |
August 3, 2006 |
Flexible bag with hermetically re-closeable opening
Abstract
A flexible bag with a hermetically re-closeable opening. Part of
the body of bag is provided with an easy-open area by which an
adhesive label is externally attached to keep hermetically closed
the easy-open area to assure hermetic sealing even after further
opening and re-closing.
Inventors: |
Rapparini; Gino; (Bologna,
IT) |
Correspondence
Address: |
OBLON, SPIVAK, MCCLELLAND, MAIER & NEUSTADT, P.C.
1940 DUKE STREET
ALEXANDRIA
VA
22314
US
|
Assignee: |
ICA S.P.A.
Via Del Litografo, 7
Bologna
IT
I-40138
|
Family ID: |
33105022 |
Appl. No.: |
10/548954 |
Filed: |
March 19, 2004 |
PCT Filed: |
March 19, 2004 |
PCT NO: |
PCT/IB04/00816 |
371 Date: |
September 15, 2005 |
Current U.S.
Class: |
383/66 ; 383/203;
383/5; 383/906 |
Current CPC
Class: |
B65D 75/5838
20130101 |
Class at
Publication: |
383/066 ;
383/906; 383/005; 383/203 |
International
Class: |
B65D 33/14 20060101
B65D033/14; B65D 33/16 20060101 B65D033/16; B65D 33/00 20060101
B65D033/00 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 31, 2003 |
IT |
BO2003A000181 |
Claims
1-7. (canceled)
8. A flexible bag comprising: a body for containing a pourable
product; and a hermetically sealed re-closable opening, wherein a
part of the body is provided with an easy-open area, and wherein an
adhesive label is externally attached to the body so as to be
pulled upwards for opening the easy-open area and to be adhered to
the body so as to assure hermetic sealing even after opening and
re-closing, wherein the bag is to be filled with the pourable
product and sealed under vacuum or controlled atmosphere, and the
bag, after having been filled and sealed, has essentially a square
parallelepiped shape, and the re-closable opening is provided at a
side face of the bag.
9. The bag of claim 8, wherein the adhesive label assures initial
hermetic conditions of the bag packaged under vacuum or under
controlled atmosphere, despite the presence of the easy-open
area.
10. The bag of claim 8, wherein the adhesive label is provided with
a prehensile flap that facilitates its opening operation.
11. The bag of claim 10, wherein the prehensile flap is located at
a lower part of the label to perform upwards opening and to allow
serving of contents of the bag without soiling the adhesive
interior of the label during pouring of the contents.
12. The bag of claim 8, wherein the adhesive label includes fragile
areas configured to perform a function of warrant seals to reveal
alterations to the bag.
13. The bag of claim 8, wherein the bag is sealed at a top surface
of the body.
14. The bag of claim 13, wherein a sealing portion projects upwards
from the top surface of the body.
Description
TECHNICAL FIELD
[0001] The present invention relates to the packaging technique of
bags made of flexible material, and in particular concerns hermetic
bags that can be opened and hermetically re-closed. International
Classification B 65 b.
STATES OF THE ART
[0002] Several types of sealed bags are known that are provided
with systems of opening and re-closing. In all the known systems
the problem of the hermetic re-closing upon partial serving still
persists. The problem is due to the fact that after the first few
openings, especially when the content is powdery, the adhesiveness
of the flexible re-closing devices decreases significantly.
[0003] The solution suggested by the present invention successfully
resolves the problems that still challenge this technological
field.
DESCRIPTION
[0004] The invention is now explained by the following description
with reference to the figures of the drawings attached as a
unrestrictive example.
[0005] FIG. 1 represents schematically a flexible bag (5) provided
with an adhesive label (2) with a non-stick prehensile flap (3) and
warranty seals (4) to reveal signs of alteration of the sealed
package. One might notice indicated with broken line the easy-open
below area (1) on the side of the bag by the already mentioned
adhesive label (2). A dotted line indicates the fragile area of the
warranty seals (4).
[0006] FIG. 2 represents the bag of figure (1) after an opening
operation. It can be noticed the configuration of the open bag (5)
and the position of the label (2) directed upwards. It can be
noticed also the two warranty seals that highlight the breaking of
the fragile lines of seals (4). In this FIG. 2 it can be noticed
the presence of the wide opening (1) corresponding to the dotted
line of the previous figure. It is evident that the adhesive part
of the adhesive label (2) does not come in touch with the powdery
product poured outwards.
[0007] FIG. 3 represents the configuration of the bag in hermetic
closing position. In this figure the breaking of the seals (4) in
showed.
[0008] FIG. 4 represents a flexible bag (5) packaged under vacuum
and its squared parallelepipedic shape and its perfect hermetic
sealing are highlighted. The airtight sealing is guaranteed even
with the presence of the facilitated opening area (1), of the
adhesive label (2) pushed by the external atmosphere against the
sealed bag (5). It can be noticed that the dotted areas (4), still
intact and guaranteed sealed, are also highlighted.
[0009] FIG. 5 represents the bag of figure (4) after the operation
of opening of the label (2) pulled upwards through the prehensile
flap (3). It can be noticed that the package does not have the
parallelepipedic shape because of the isobaric conditions created
after the opening.
[0010] FIG. 6 shoes the stance that the bag takes after the
hermetic closing, which is of course not in vacuum conditions
anymore. The violation of the warranty seals (4) can also be
observed.
[0011] In the figures each single detail is marked as follows:
[0012] 1 indicates an area with facilitated opening previously
created upon the strip of flexible material to be packaged in
hermetic bags.
[0013] 2 indicates an adhesive label.
[0014] 3 indicates a non-stick prehensile flap.
[0015] 4 indicates fragile area that function as warranty
seals.
[0016] 5 indicates a flexible bag.
[0017] The evidence of the figures highlights the simplicity of the
invention and its reliability also for airtight under-vacuum
bags.
[0018] The invention of course allows for several variations of
practical realization as far as the proportioning and the
structural dimensioning are concerned and as well as the materials
used in the realization of the bags.
[0019] All flexible bags with hermetically re-closable openings
which will feature the body provided with an easy-open area by
which is externally attached an adhesive label to keep hermetically
closed said below easy-open area, in order to assure hermetic
sealing even after further opening and reclosing, such as
described, showed and hereinafter claimed, will be considered as
being part of protection sphere of the present invention.
* * * * *