EP0805769B1 - Inflatable cushion and method of making same - Google Patents
Inflatable cushion and method of making same Download PDFInfo
- Publication number
- EP0805769B1 EP0805769B1 EP95906349A EP95906349A EP0805769B1 EP 0805769 B1 EP0805769 B1 EP 0805769B1 EP 95906349 A EP95906349 A EP 95906349A EP 95906349 A EP95906349 A EP 95906349A EP 0805769 B1 EP0805769 B1 EP 0805769B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flexible
- conduit
- aperture
- inflation valve
- inflation
- 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
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Classifications
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- 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
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/14—Valve bags, i.e. with valves for filling
- B65D31/147—Valve bags, i.e. with valves for filling the filling port being provided in a side wall
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- 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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
- B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
-
- 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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
- B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
- B65D81/051—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric
- B65D81/052—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric filled with fluid, e.g. inflatable elements
Definitions
- the present invention relates to an inflatable cushion including a pair of flexible walls welded together at their edges, an inflation valve including a pair of flexible sheets welded together along two weld lines, said inflation valve being affixed to an internal face of one of said flexible walls by a welding line at a distance from said welded edges of said cushion, and opening to the outside of said cushion through an aperture provided in said one flexible wall to which said inflation valve is affixed to permit inflation of the cushion by insertion of an inflation tube or by a directed jet of air, said welding line surrounding said aperture and welding said one flexible wall and a first flexible sheet being adjacent thereto together.
- Such an inflatable cushion may be used advantageously for packing articles of different dimensions and shapes by wedging same in a rigid box.
- An inflatable cushion is already known from FR 2 686 322, in which the inflation walve located between two flexible walls forming the cushion is welded at: one of its ends to the two flexible walls at their edges, leaving an aperture of the conduit open to the outside for insertion of an inflation tube.
- This known inflatable cushion comprises two flexible guide tabs that are needed for insertion of an inflation tube into the conduit. These flexible guide tabs project from one edge of the cushion and are welded at inflation valve to the edges of the flexible walls forming the cushion.
- an inflation tube be inserted into the interior of the conduit of the inflation valve of this known cushion.
- To insert such an inflation tube it is necessary to first spread the flexible guide tabs.
- the insertion of the inflation tube into the cushion, via the conduit of the inflation valve, for inflating or deflating it produces at the level of the opening to the outside of the conduit of the valve a tension, which acts upon the welded edges of the flexible cushion walls, this tension being capable of causing the edges to tear at this level.
- the inflation valve of this cushion can be positioned only on one edge of the latter, which is sometimes difficult to realize, when the cushion has a complex shape, and which can become a disadvantage in the conception of a package with an inflatable cushion.
- Another inflatable cushion is known from GB-A-1093212 in which the inflation valve comprises a pair of flexible plastic panels, one of which being welded to the inner face of one of the two flexible walls of the inflatable cushion, while the other one of said pair of flexible plastic panels being formed from a material which melts at a temperature higher than that of said wall or said one panel.
- the panels of the inflation valve are welded together at three of their edges, defining one open end.
- the manufacture of this known inflatable cushion requires at least two kinds of material due to the different melting temperatures, resulting in increased costs for purchasing and storing. Moreover severals welding lines are necessary for sealing one end of the inflation valve and for affixing it to an internal face of one of the flexible walls of the inflatable cushion.
- an object of the present invention is to provide an inflatable cushion of the above-mentioned kind, the manufacture of which is less complicated and less expensive.
- the present invention proposes a new inflatable cushion in which the inflation valve is located such that the inflation tube could be automatically inserted into the interior of the inflatable cushion without producing tension upon the welded edges of the flexible cushion walls.
- the above problem is solved in that said two weld lines form a conduit open at both ends and that said welding line covers said two weld lines and includes outside the conduit the second flexible sheet.
- the aperture provided in said flexible wall to which said inflation walve is affixed is placed in the appropriate region of said flexible wall.
- said aperture in said one flexible wall to which said inflation wall is affixed is located in an angle region of said cushion.
- FIG 1 Shown in Figure 1 is an inflatable cushion comprising two walls 10 of a hot or high-frequency weldable, flexible plastic, which are welded together at their edges along a weld line 12 defining the peripheral edge of the cushion.
- This inflatable cushion comprises an inflation valve 20 consisting of two sheets 21, 22 of a hot or high-frequency weldable, flexible plastic (see Figures 2, 3), which are welded together along two essentially parallel weld lines 24, so as to form a conduit 23 for an inflation tube 30 that is open at both ends.
- the inflation valve 20 is welded to one internal face of one of flexible cushion walls 10, at a distance from weld line 12 of the cushion, and opens to the outside of the latter through an aperture 11 which is provided in flexible wall 10, to which valve 20 is welded.
- the weld seam 13 of inflation valve 20 on the flexible cushion wall 10 describes a circle, which surrounds aperture 11 that is provided in flexible wall 10, leaving flexible sheets 21, 22 of inflation valve 20 open at the level of conduit 23, so as to permit the insertion of an inflation tube 30 into the interior of the cushion through aperture 11 and conduit 23.
- FIG. 2 Shown in Figure 2 is a first embodiment of an inflation valve 20.
- the flexible sheets 21, 22 forming the inflation valve 20 are of different lengths.
- These sheets 21, 22 are arranged side by side and welded together along weld lines 24, so that at one end of conduit 23 of inflation valve 20, the transverse edges 21a, 22a of flexible sheets 21, 22 are offset from one another in the axial direction of the valve. At the other end, the edges 21b, 22b of sheets 21,22 overlie one another.
- This inflation valve is positioned in the interior of the inflatable cushion (see Figure 1), so that the flexible sheet 22 of inflation valve 20 with its edge 22a set back from edge 21a of the other flexible sheet 21, is positioned adjacent to the internal face of flexible cushion wall 10, to which the inflation valve is affixed, the offset edge 22a being adjacent to an edge of aperture 11 that is provided in said flexible wall 10.
- the weld seam 13 of inflation valve 20 on wall 10 is such that on one portion of circle 13a, wall 10 and sheet 21 including forward edge 21a are welded together, that on two portions of circle 13b arranged on both sides of conduit 23, flexible wall 10 and thin sheets 21, 22 are welded together, and that over the width 13c of conduit 23, only wall 10 and adjacent sheet 22 are welded together, while leaving the other sheet 21 forming the valve detached, so as leave the conduit open.
- the resist 26 may be made in the form of an individual tab of silicon or even paper. In this instance, the resist 26 is pulled out of conduit 23 through aperture 11 in flexible wall 10, after the welding step (c) of the foregoing process.
- the resist 26 is formed by printing an insulating material, such as, for example, a fast-drying varnish, on one of the opposite internal faces of sheets 21, 22 forming the inflation valve. This printing occurs in step (a) of the above-described method.
- this resist 26 allows, in an advantageous manner, to leave the two sheets 21, 22 of the valve separated from one another at conduit 23, so as to thus permit the insertion of a flexible inflation tube into the interior of this valve.
- valve 20 is such that a directed let of air from an air nozzle (not shown) can be aimed at the outer end of the conduit 23 and this jet of air will open the conduit 23 and inflate the cushion without the necessity of inserting an inflation tube into the conduit 23.
- This feature permits automatic inflation or very fast manual inflation.
- FIG. 3 Shown in Figure 3 is another embodiment of an inflation valve of the inflatable cushion in accordance with the invention.
- the flexible sheets 21, 22 forming this valve have the same dimensions. These sheets 21, 22 are superposed and welded together along welding lines 24, so as to form conduit 23.
- One of these flexible sheets 22 includes here a circular opening 25, which is located at one end of conduit 23 between the two welding lines 24.
- This inflation valve is located in the interior of the flexible cushion in accordance with the invention, so that flexible sheet 22 with opening 25 is adjacent to the internal face of flexible wall 10, to which the inflation valve is attached, with opening 25 being opposite aperture 11 provided in flexible wall 10.
- the thin sheets 21, 22 and flexible wall 10 are welded along a circular portion surrounding the two overlaid apertures 11, 25, and covering the two welding lines 24 that form conduit 23.
- conduit 23 only the flexible wall 10 and thin wall 22 adjacent to the inflation valve are welded together, whereas the other thin sheet 21 remains detached, so that an inflation tube 30 can be inserted or a directed air jet can pass therethrough.
- a common characteristic of the inflation valves shown in Figures 2 and 3 is that the welding lines 24 of flexible sheets 21, 22 are locally spaced apart from one another, so that the conduit 23 of flexible inflation tube 30 that is created by welding lines 24 has a widening, which is located at a distance from the free end of the conduit placed in the interior of the cushion.
- the inflatable cushion of this invention has advantageously a double seal at aperture 11 in flexible wall 10.
- a first seal is formed by the valve itself, which is self-closing by the two flexible sheets 21, 22 overlying one another.
- a second seal is ensured by sealingly applying flexible sheet 21 of the inflation valve, which is outermost with respect to flexible wall 10, to aperture 11, so as to obstruct same.
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- Engineering & Computer Science (AREA)
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Description
The present invention relates to an inflatable cushion including
a pair of flexible walls welded together at their edges,
an inflation valve including a pair of flexible sheets welded
together along two weld lines, said inflation valve being affixed
to an internal face of one of said flexible walls by a
welding line at a distance from said welded edges of said
cushion, and opening to the outside of said cushion through
an aperture provided in said one flexible wall to which said
inflation valve is affixed to permit inflation of the cushion
by insertion of an inflation tube or by a directed jet of
air, said welding line surrounding said aperture and welding
said one flexible wall and a first flexible sheet being adjacent
thereto together.
Such an inflatable cushion may be used advantageously for
packing articles of different dimensions and shapes by wedging
same in a rigid box.
An inflatable cushion is already known from
FR 2 686 322, in
which the inflation walve located between two flexible walls
forming the cushion is welded at: one of its ends to the two
flexible walls at their edges, leaving an aperture of the
conduit open to the outside for insertion of an inflation
tube.
This known inflatable cushion comprises two flexible guide
tabs that are needed for insertion of an inflation tube into
the conduit. These flexible guide tabs project from one edge
of the cushion and are welded at inflation valve to the edges
of the flexible walls forming the cushion.
However, this known cushion has several disadvantages.
To begin with, it is required that an inflation tube be
inserted into the interior of the conduit of the inflation
valve of this known cushion. To insert such an inflation
tube, it is necessary to first spread the flexible guide
tabs. Thus, it becomes difficult: to realize an automatic
insertion of the tube into the valve and it is not possible
to inflate the cushion without inserting the inflation tube.
Further, the insertion of the inflation tube into the
cushion, via the conduit of the inflation valve, for inflating
or deflating it, produces at the level of the opening to
the outside of the conduit of the valve a tension, which acts
upon the welded edges of the flexible cushion walls, this
tension being capable of causing the edges to tear at this
level.
Finally, the inflation valve of this cushion can be positioned
only on one edge of the latter, which is sometimes
difficult to realize, when the cushion has a complex shape,
and which can become a disadvantage in the conception of a
package with an inflatable cushion.
Another inflatable cushion is known from GB-A-1093212 in
which the inflation valve comprises a pair of flexible plastic
panels, one of which being welded to the inner face of
one of the two flexible walls of the inflatable cushion,
while the other one of said pair of flexible plastic panels
being formed from a material which melts at a temperature
higher than that of said wall or said one panel. The panels
of the inflation valve are welded together at three of their
edges, defining one open end. The manufacture of this known
inflatable cushion requires at least two kinds of material
due to the different melting temperatures, resulting in increased
costs for purchasing and storing. Moreover severals
welding lines are necessary for sealing one end of the inflation
valve and for affixing it to an internal face of one of
the flexible walls of the inflatable cushion.
Therefore, an object of the present invention is to provide
an inflatable cushion of the above-mentioned kind, the manufacture
of which is less complicated and less expensive.
To remedy to drawbacks of the precited state of art, the present
invention proposes a new inflatable cushion in which the
inflation valve is located such that the inflation tube could
be automatically inserted into the interior of the inflatable
cushion without producing tension upon the welded edges of
the flexible cushion walls.
More particularly, according to the invention, the above
problem is solved in that said two weld lines form a conduit
open at both ends and that said welding line covers said two
weld lines and includes outside the conduit the second flexible
sheet.
Also, advantageously, in accordance with the complexity of
shape of the cushion and its use, the aperture provided in
said flexible wall to which said inflation walve is affixed,
is placed in the appropriate region of said flexible wall.
In particular, according to an embodiment of the cushion object
of the invention said aperture in said one flexible wall
to which said inflation wall is affixed is located in an
angle region of said cushion.
It is interesting to note that the insertion of the tube into
the valve of the cushion according to the invention, for inflating
or deflating it, acts in compression upon the welded
edges of said flexible wall that contributes to held it
bound.
Further features, objets and advantages will be evident from
the following detailed description of the prefered embodiments
of the present invention taken in conjunction with the
accompanying drawings, in which :
- Figure 1 is a partial plan view of a cushion in accordance with the invention, in a deflated state,
- Figure 2 is an plan view of a first embodiment of the inflation valve of the inflatable cushion in accordance with the invention, into which an inflation tube is inserted,
- Figure 3 is a plan view of a second embodiment of the inflation valve of the inflatable cushion in accordance with the invention, into which an inflation tube is inserted.
Shown in Figure 1 is an inflatable cushion comprising two
walls 10 of a hot or high-frequency weldable, flexible plastic,
which are welded together at their edges along a weld
line 12 defining the peripheral edge of the cushion. This
inflatable cushion comprises an inflation valve 20 consisting
of two sheets 21, 22 of a hot or high-frequency weldable,
flexible plastic (see Figures 2, 3), which are welded together
along two essentially parallel weld lines 24, so as to
form a conduit 23 for an inflation tube 30 that is open at
both ends. The inflation valve 20 is welded to one internal
face of one of flexible cushion walls 10, at a distance from
weld line 12 of the cushion, and opens to the outside of the
latter through an aperture 11 which is provided in flexible
wall 10, to which valve 20 is welded.
The weld seam 13 of inflation valve 20 on the flexible
cushion wall 10 describes a circle, which surrounds aperture
11 that is provided in flexible wall 10, leaving flexible
sheets 21, 22 of inflation valve 20 open at the level of conduit
23, so as to permit the insertion of an inflation tube
30 into the interior of the cushion through aperture 11 and
conduit 23.
Shown in Figure 2 is a first embodiment of an inflation valve
20. According to this embodiment, the flexible sheets 21, 22
forming the inflation valve 20 are of different lengths.
These sheets 21, 22 are arranged side by side and welded together
along weld lines 24, so that at one end of conduit 23
of inflation valve 20, the transverse edges 21a, 22a of flexible
sheets 21, 22 are offset from one another in the axial
direction of the valve. At the other end, the edges 21b, 22b
of sheets 21,22 overlie one another. This inflation valve is
positioned in the interior of the inflatable cushion (see
Figure 1), so that the flexible sheet 22 of inflation valve
20 with its edge 22a set back from edge 21a of the other flexible
sheet 21, is positioned adjacent to the internal face
of flexible cushion wall 10, to which the inflation valve is
affixed, the offset edge 22a being adjacent to an edge of
aperture 11 that is provided in said flexible wall 10.
The weld seam 13 of inflation valve 20 on wall 10 is such
that on one portion of circle 13a, wall 10 and sheet 21 including
forward edge 21a are welded together, that on two
portions of circle 13b arranged on both sides of conduit 23,
flexible wall 10 and thin sheets 21, 22 are welded together,
and that over the width 13c of conduit 23, only wall 10 and
adjacent sheet 22 are welded together, while leaving the
other sheet 21 forming the valve detached, so as leave the
conduit open.
To make an inflatable cushion in accordance with the invention,
as shown in Figure 1, which comprises an inflation
valve as shown in Figure 2, and in which two flexible walls
10 are peripherally welded together, the following steps are
carried out:
The resist 26 may be made in the form of an individual tab of
silicon or even paper. In this instance, the resist 26 is
pulled out of conduit 23 through aperture 11 in flexible wall
10, after the welding step (c) of the foregoing process.
According to a variant of this method, the resist 26 is
formed by printing an insulating material, such as, for
example, a fast-drying varnish, on one of the opposite internal
faces of sheets 21, 22 forming the inflation valve. This
printing occurs in step (a) of the above-described method.
When welding valve 20 to flexible wall 10, this resist 26
allows, in an advantageous manner, to leave the two sheets
21, 22 of the valve separated from one another at conduit 23,
so as to thus permit the insertion of a flexible inflation
tube into the interior of this valve. A major feature of this
invention is that the construction of valve 20 is such that a
directed let of air from an air nozzle (not shown) can be
aimed at the outer end of the conduit 23 and this jet of air
will open the conduit 23 and inflate the cushion without the
necessity of inserting an inflation tube into the conduit 23.
This feature permits automatic inflation or very fast manual
inflation.
Shown in Figure 3 is another embodiment of an inflation valve
of the inflatable cushion in accordance with the invention.
In this embodiment, the flexible sheets 21, 22 forming this
valve have the same dimensions. These sheets 21, 22 are superposed
and welded together along welding lines 24, so as to
form conduit 23. One of these flexible sheets 22 includes
here a circular opening 25, which is located at one end of
conduit 23 between the two welding lines 24. This inflation
valve is located in the interior of the flexible cushion in
accordance with the invention, so that flexible sheet 22 with
opening 25 is adjacent to the internal face of flexible wall
10, to which the inflation valve is attached, with opening 25
being opposite aperture 11 provided in flexible wall 10. In
this instance, the thin sheets 21, 22 and flexible wall 10
are welded along a circular portion surrounding the two overlaid
apertures 11, 25, and covering the two welding lines 24
that form conduit 23. It should be noted that at conduit 23,
only the flexible wall 10 and thin wall 22 adjacent to the
inflation valve are welded together, whereas the other thin
sheet 21 remains detached, so that an inflation tube 30 can
be inserted or a directed air jet can pass therethrough.
As one will note, a common characteristic of the inflation
valves shown in Figures 2 and 3 is that the welding lines 24
of flexible sheets 21, 22 are locally spaced apart from one
another, so that the conduit 23 of flexible inflation tube 30
that is created by welding lines 24 has a widening, which is
located at a distance from the free end of the conduit placed
in the interior of the cushion. This has the advantage that,
when the inflation of the cushion is stopped and the tube 30
is still partially engaged in conduit 23, the two flexible
sheets 21, 22 rest against one another due to a distortion
that is caused in the vicinity of the free end of the conduit
in the widening, so as to obstruct immediately the conduit
and to thus prevent a partial deflation of the cushion.
Once inflated, the inflatable cushion of this invention has
advantageously a double seal at aperture 11 in flexible wall
10.
A first seal is formed by the valve itself, which is self-closing
by the two flexible sheets 21, 22 overlying one another.
A second seal is ensured by sealingly applying flexible sheet
21 of the inflation valve, which is outermost with respect to
flexible wall 10, to aperture 11, so as to obstruct same.
It is understood that the present invention is by no means
limited to the embodiments described and illustrated therein,
but that a person skilled in the art will be able to conceive
any variant within the scope of the appended claims.
Claims (8)
- An inflatable cushion including a pair of flexible walls (10) welded together at their edges (12), an inflation valve (20) including a pair of flexible sheets (21, 22) welded together along two weld lines (24) said inflation valve (20) being affixed to an internal face of one of said flexible walls by a welding line (13) at a distance from said welded edges (12) of said cushion, and opening to the outside of said cushion through an aperture (11) provided in said one flexible wall (10) to which said inflation valve is affixed to permit inflation of the cushion by insertion of an inflation tube or by a directed jet of air, said welding line (13) surrounding said aperture (11) and welding said one flexible wall and a first flexible sheet (22) being adjacent thereto together,
characterized in
that said two weld lines (24) form a conduit (23) open at both ends, one end of which communicating with the aperture (11) and that said welding line (13) covers said two weld lines (24) and includes outside the conduit (23) the second flexible sheet (21). - An inflatable cushion according to claim 1, characterized in that at one end of said conduit (23) of said inflation valve (20), the transverse edges (21a, 22a) of said flexible sheets (21, 22) forming said valve are shifted from each other, said flexible sheet (22) including the inner edge (22a) being adjacent to the internal face of said one flexible wall to which said inflation valve (20) is affixed, said inner edge being located in the vicinity of the edge of said aperture (11) provided in said one flexible wall (10).
- An inflatable cushion according to claim 1, characterized in that said inflation valve (20) includes an aperture (25) formed in one of said flexible sheets (22) which is located adjacent to the internal face of said one flexible wall (10) to which said inflation valve is affixed, said aperture (25) being located at one end of said conduit (23), between the welding lines (24) forming said conduit, and facing said aperture (11) provided in said one flexible wall (10) to which said inflation valve (20) is affixed.
- An inflatable cushion according to any one of claims 1 to 3, characterized in that said aperture in said one flexible wall to which said inflation wall is affixed is located in an angle region of said cushion.
- An inflatable cushion according to any one of claims 1 to 4, characterized in that, in the inflated condition, it provides at said aperture (11) provided in said one flexible wall (10) a first seal established by the mutual engagement of said pair of flexible sheets (21, 22) of said inflation valve, and a second seal established by the engagement of one of said flexible sheets of said inflation valve with said aperture (11) so as to obstruct same.
- A method for manufacturing an inflatable cushion according to claim 2, whereina) the flexible walls (10), positioned one against the other, are peripherally welded together,b) the flexible sheets (21, 22) are welded together along two weld lines (24) to form an inflation valve (20), having a conduit (23) open at both ends,c) providing an interference member (26) in said conduit (23) of said inflation valve (20), at the end of said conduit (23) corresponding to the shifted transverse edges (21a, 22a) of said flexible sheets (21, 22),d) positioning said inflation valve (20) against the internal face of one of said flexible walls (10) provided with an aperture (11) in such manner that said flexible sheet (22) of said valve including the inner edge (22a) is located adjacent to the internal face of said flexible wall (10), and that the open end of the conduit (23), comprising said inner edge (22a) and said interference member (26), is located at said aperture (11) and communicates therewith,e) welding said inflation valve (20) to said flexible wall (10) along a welding line (13) which surrounds that aperture (11) of said flexible wall (10) and extends across said interference member (26), said welding line (13) including outside the conduit (23) the second flexible sheet (21) and said interference member (26) preventing inside the conduit (23) the two flexible sheets (21, 22) from being welded together.
- A method according to claim 6, characterized in that said interference member (26) is made of an individual tab in an insulating material, and it further includes a final step of extracting said interference member (26) from said conduit (23) via said aperture (11) of said flexible wall (10).
- A method according to claim 6, characterized in that said step a) further includes the printing of an insulating material on one of said opposite internal faces of said flexible sheets (21, 22) forming said inflation valve (20) at the end of said conduit (23) corresponding to said shifted transverse edges (21a, 22a), in order to form said interference member (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT95906349T ATE169883T1 (en) | 1995-01-25 | 1995-01-25 | INFLATABLE PILLOW AND METHOD FOR MANUFACTURING |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP1995/000271 WO1996022926A1 (en) | 1995-01-25 | 1995-01-25 | Inflatable cushion and method of making same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0805769A1 EP0805769A1 (en) | 1997-11-12 |
| EP0805769B1 true EP0805769B1 (en) | 1998-08-19 |
Family
ID=8165946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95906349A Expired - Lifetime EP0805769B1 (en) | 1995-01-25 | 1995-01-25 | Inflatable cushion and method of making same |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0805769B1 (en) |
| JP (1) | JPH11504885A (en) |
| KR (1) | KR19980701677A (en) |
| AU (1) | AU690195B2 (en) |
| DE (1) | DE69504212D1 (en) |
| FI (1) | FI973103A (en) |
| WO (1) | WO1996022926A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6789376B1 (en) | 1999-09-22 | 2004-09-14 | Pactiv Corporation | Method and machine for the manufacture of air pillows |
| US8627637B2 (en) | 1999-09-22 | 2014-01-14 | Pregis Innovative Packaging, Inc. | Method and machine for the manufacture of air pillows |
| US8906478B2 (en) | 2005-05-06 | 2014-12-09 | Pregis Innovative Packaging, Inc. | Films for inflatable cushions |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5727370A (en) * | 1996-06-21 | 1998-03-17 | Flexible Products Co | Apparatus and method for producing foam cushions utilizing flexible foam mixing chamber |
| US5901850A (en) * | 1996-10-04 | 1999-05-11 | Impackt, L.L.C. | Inflatable packaging assembly |
| US5862914A (en) * | 1996-11-25 | 1999-01-26 | Sealed Air Corporation | Inflatable package for protecting an article |
| US5830780A (en) * | 1996-11-26 | 1998-11-03 | Sealed Air Corporation | Self-closing valve structure |
| US6520332B1 (en) | 1999-11-10 | 2003-02-18 | Cryovac, Inc. | Packaging cushion and packaging assemblies incorporating same |
| US6398029B1 (en) | 2000-03-17 | 2002-06-04 | Sealed Air Corporation (Us) | Packaging cushion and packaging assemblies incorporating same |
| USRE43327E1 (en) | 2001-01-08 | 2012-04-24 | Aminex Therapeutics, Inc. | Hydrophobic polyamine analogs and methods for their use |
| KR100491204B1 (en) * | 2005-02-12 | 2005-05-24 | 우찌다히로후미 | Cramming type shock-absorbing package and manufacturing method |
| SI3432914T1 (en) | 2016-03-25 | 2021-01-29 | Aminex Therapeutics, Inc. | Bioavailable polyamines |
| CN106672434A (en) * | 2017-03-07 | 2017-05-17 | 中山市丰申电器有限公司 | Packing box |
| JP2023545674A (en) | 2020-09-30 | 2023-10-31 | アミネックス セラピューティクス， インコーポレイテッド | Combined drug substance of polyamine transport inhibitor and DFMO |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1486391A1 (en) * | 1964-08-26 | 1969-12-18 | Psg Plastik Sack Gmbh | Cushion-shaped plastic valve bag |
| US3268152A (en) * | 1964-11-27 | 1966-08-23 | Thermoplastic Ind Inc | Self-sealing valve bag |
-
1995
- 1995-01-25 DE DE69504212T patent/DE69504212D1/en not_active Expired - Lifetime
- 1995-01-25 WO PCT/EP1995/000271 patent/WO1996022926A1/en not_active Application Discontinuation
- 1995-01-25 EP EP95906349A patent/EP0805769B1/en not_active Expired - Lifetime
- 1995-01-25 JP JP8522564A patent/JPH11504885A/en active Pending
- 1995-01-25 KR KR1019970705073A patent/KR19980701677A/en not_active Application Discontinuation
- 1995-01-25 AU AU14567/95A patent/AU690195B2/en not_active Ceased
-
1997
- 1997-07-24 FI FI973103A patent/FI973103A/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6789376B1 (en) | 1999-09-22 | 2004-09-14 | Pactiv Corporation | Method and machine for the manufacture of air pillows |
| US8627637B2 (en) | 1999-09-22 | 2014-01-14 | Pregis Innovative Packaging, Inc. | Method and machine for the manufacture of air pillows |
| US8906478B2 (en) | 2005-05-06 | 2014-12-09 | Pregis Innovative Packaging, Inc. | Films for inflatable cushions |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11504885A (en) | 1999-05-11 |
| FI973103A0 (en) | 1997-07-24 |
| AU690195B2 (en) | 1998-04-23 |
| AU1456795A (en) | 1996-08-14 |
| WO1996022926A1 (en) | 1996-08-01 |
| KR19980701677A (en) | 1998-06-25 |
| FI973103A (en) | 1997-09-24 |
| DE69504212D1 (en) | 1998-09-24 |
| EP0805769A1 (en) | 1997-11-12 |
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