EP1338529A1 - Dehumidifying device - Google Patents

Dehumidifying device Download PDF

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Publication number
EP1338529A1
EP1338529A1 EP03001520A EP03001520A EP1338529A1 EP 1338529 A1 EP1338529 A1 EP 1338529A1 EP 03001520 A EP03001520 A EP 03001520A EP 03001520 A EP03001520 A EP 03001520A EP 1338529 A1 EP1338529 A1 EP 1338529A1
Authority
EP
European Patent Office
Prior art keywords
receptacle
present
moisture
film
dehumidifying device
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.)
Granted
Application number
EP03001520A
Other languages
German (de)
French (fr)
Other versions
EP1338529B1 (en
Inventor
Dante Vaula
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Propack SpA
Original Assignee
Propack SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Propack SpA filed Critical Propack SpA
Publication of EP1338529A1 publication Critical patent/EP1338529A1/en
Application granted granted Critical
Publication of EP1338529B1 publication Critical patent/EP1338529B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
    • B65D81/268—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants the absorber being enclosed in a small pack, e.g. bag, included in the package

Definitions

  • the present invention relates to a dehumidifying device and, more precisely, to a dehumidifying device suitable for being placed in containers, boxes, or objects which are intended to hold metallic or non-metallic, machined or raw materials.
  • Materials disposed inside containers have to be protected from moisture to prevent their deterioration due to rust or corrosion, or they may be damaged or marked in some way by the moisture.
  • bags or sachets of porous material containing dehumidifying products which absorb moisture are placed inside the containers.
  • the object of the present invention is to provide a device which overcomes the above-mentioned disadvantages and which is easy to construct and inexpensive.
  • the present invention achieves the above-mentioned objects by means of a dehumidifying device having the characteristics specified in the appended claims.
  • a device according to the present invention is generally indicated 1; it comprises a receptacle 2 which may be, for example, of rectangular or circular shape or of any other shape, and contains a hygroscopic substance 4 which may or may not contain a gelling substance; the hygroscopic substance 4 can absorb moisture from the surrounding air.
  • a receptacle 2 which may be, for example, of rectangular or circular shape or of any other shape, and contains a hygroscopic substance 4 which may or may not contain a gelling substance; the hygroscopic substance 4 can absorb moisture from the surrounding air.
  • a sheet or film 6 of material that is permeable to water vapour and is impermeable to liquids in the direction from the interior towards the exterior is welded to the receptacle 2, for example, by heat-sealing or ultrasound welding or equivalent systems, thus allowing moisture to enter the receptacle 2 where it is transformed into liquid and can no longer escape.
  • the moisture which is present in the container comes into contact with the hygroscopic substance 4 contained in the receptacle 2 - by filtering through the water-vapour permeable sheet 6 as described above - and combines with the hygroscopic substance, forming a type of jelly which retains the water, thus dehumidifying the atmosphere and, by virtue of the material of which the receptacle is made (that is, plastics material or in any case plastics-type material), the moisture can no longer escape.
  • the material of which the receptacle is made that is, plastics material or in any case plastics-type material
  • the sheet 6 heat-sealed onto the receptacle 2 is formed, for example, by a flexible, microporous, polythene-coated film.
  • the receptacle may be of any shape and the hygroscopic substance may contain gelling materials.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Drying Of Gases (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

A dehumidifying device is described and is suitable for being placed inside containers or receptacles of other types in which metallic or non-metallic materials that need to be protected from moisture are present. The device comprises a receptacle (2) made of plastics material containing hygroscopic material (4), the receptacle (2) being closed by a sheet or film (6) of material that is permeable to water vapour and impermeable to liquids from the interior towards the exterior. By virtue of these characteristics, the present invention allows the moisture that is present in the inside atmosphere to enter, capturing it and then preventing the leakage of the liquids which, at this point, are removed once and for all from the surrounding atmosphere.

Description

  • The present invention relates to a dehumidifying device and, more precisely, to a dehumidifying device suitable for being placed in containers, boxes, or objects which are intended to hold metallic or non-metallic, machined or raw materials.
  • Materials disposed inside containers have to be protected from moisture to prevent their deterioration due to rust or corrosion, or they may be damaged or marked in some way by the moisture.
  • According to the prior art, bags or sachets of porous material containing dehumidifying products which absorb moisture are placed inside the containers.
  • These sachets have the disadvantage that they may deteriorate, causing the material which has already absorbed the moisture to leak into the environment.
  • The object of the present invention is to provide a device which overcomes the above-mentioned disadvantages and which is easy to construct and inexpensive.
  • The present invention achieves the above-mentioned objects by means of a dehumidifying device having the characteristics specified in the appended claims.
  • Further characteristics and advantages of the present invention will become clear in the course of the following detailed description which is given purely by way of nonlimiting example with reference to the appended drawings, in which:
  • Figure 1 is a perspective view of a first embodiment of a device according to the invention,
  • Figure 2 is a section taken in the plane II-II of Figure 1, and
  • Figure 3 is a perspective view of a second embodiment of the device according to the invention.
  • With reference to the drawings, a device according to the present invention is generally indicated 1; it comprises a receptacle 2 which may be, for example, of rectangular or circular shape or of any other shape, and contains a hygroscopic substance 4 which may or may not contain a gelling substance; the hygroscopic substance 4 can absorb moisture from the surrounding air.
  • A sheet or film 6 of material that is permeable to water vapour and is impermeable to liquids in the direction from the interior towards the exterior is welded to the receptacle 2, for example, by heat-sealing or ultrasound welding or equivalent systems, thus allowing moisture to enter the receptacle 2 where it is transformed into liquid and can no longer escape.
  • When a receptacle according to the invention is inserted in a container in which metallic or non-metallic products are present, the moisture which is present in the container comes into contact with the hygroscopic substance 4 contained in the receptacle 2 - by filtering through the water-vapour permeable sheet 6 as described above - and combines with the hygroscopic substance, forming a type of jelly which retains the water, thus dehumidifying the atmosphere and, by virtue of the material of which the receptacle is made (that is, plastics material or in any case plastics-type material), the moisture can no longer escape.
  • The sheet 6 heat-sealed onto the receptacle 2 is formed, for example, by a flexible, microporous, polythene-coated film.
  • Naturally, the principle of the invention remaining the same, wide variations may be applied to the embodiments described and illustrated without thereby departing from the scope of the present invention; for example, the receptacle may be of any shape and the hygroscopic substance may contain gelling materials.

Claims (4)

  1. A dehumidifying device suitable for being placed inside containers or other receptacles in which materials to be protected from moisture are present, characterized in that it comprises a receptacle (2) made of plastics material containing hygroscopic material (4), the receptacle (2) being closed by a sheet or film (6) of material that is permeable to water vapour and impermeable to liquids from the interior towards the exterior.
  2. A device according to Claim 1, characterized in that the receptacle (2) is of the rigid or semi-rigid type.
  3. A dehumidifying device according to Claim 1 and Claim 2, characterized in that the film (6) is heat-sealed onto the receptacle (2).
  4. A dehumidifying device according to any one of Claims 1 to 3, characterized in that the film (6) is a flexible, microporous, polythene-coated film.
    The whole as described and illustrated and for the purposes specified.
EP03001520A 2002-02-21 2003-01-23 Dehumidifying device Expired - Lifetime EP1338529B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO20020039U 2002-02-21
IT2002TO000039U ITTO20020039U1 (en) 2002-02-21 2002-02-21 DEHUMIDIFIER DEVICE.

Publications (2)

Publication Number Publication Date
EP1338529A1 true EP1338529A1 (en) 2003-08-27
EP1338529B1 EP1338529B1 (en) 2010-06-30

Family

ID=27621128

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03001520A Expired - Lifetime EP1338529B1 (en) 2002-02-21 2003-01-23 Dehumidifying device

Country Status (5)

Country Link
EP (1) EP1338529B1 (en)
AT (1) ATE472493T1 (en)
DE (1) DE60333141D1 (en)
ES (1) ES2348413T3 (en)
IT (1) ITTO20020039U1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0793992A2 (en) 1996-03-07 1997-09-10 United Catalysts, Inc. Absorbent packet
FR2759867A1 (en) * 1997-02-25 1998-08-28 Atmosphere Controle Sa DEVICE CAPABLE OF INCREASING THE SHELF LIFE OF INDUSTRIAL PREPARED DISHES
WO2002012089A1 (en) * 2000-08-03 2002-02-14 Controll B.V. Gel for moisture control and device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0793992A2 (en) 1996-03-07 1997-09-10 United Catalysts, Inc. Absorbent packet
FR2759867A1 (en) * 1997-02-25 1998-08-28 Atmosphere Controle Sa DEVICE CAPABLE OF INCREASING THE SHELF LIFE OF INDUSTRIAL PREPARED DISHES
WO2002012089A1 (en) * 2000-08-03 2002-02-14 Controll B.V. Gel for moisture control and device

Also Published As

Publication number Publication date
EP1338529B1 (en) 2010-06-30
ITTO20020039V0 (en) 2002-02-21
ATE472493T1 (en) 2010-07-15
ITTO20020039U1 (en) 2003-08-21
ES2348413T3 (en) 2010-12-03
DE60333141D1 (en) 2010-08-12

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