WO1999023436A1 - Declencheur pour chaufferette a liquide en surfusion - Google Patents
Declencheur pour chaufferette a liquide en surfusion Download PDFInfo
- Publication number
- WO1999023436A1 WO1999023436A1 PCT/FR1998/002314 FR9802314W WO9923436A1 WO 1999023436 A1 WO1999023436 A1 WO 1999023436A1 FR 9802314 W FR9802314 W FR 9802314W WO 9923436 A1 WO9923436 A1 WO 9923436A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spring
- trigger
- supercooled liquid
- liquid heater
- release switch
- 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.)
- Ceased
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/02—Compresses or poultices for effecting heating or cooling
- A61F7/03—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/028—Control arrangements therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/02—Compresses or poultices for effecting heating or cooling
- A61F2007/0292—Compresses or poultices for effecting heating or cooling using latent heat produced or absorbed during phase change of materials, e.g. of super-cooled solutions
- A61F2007/0293—Triggers, activators or catalysts therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Definitions
- the present invention relates to improvements to triggers for supercooled liquid heaters.
- Such a heater is formed of a sealed pocket, containing a supercooled liquid such as, for example, a mixture of sodium acetate and water.
- a supercooled liquid comes in the liquid form which, after being heated and then allowed to cool, can pass from this state to that solid under the effect of an external agent which causes crystallization .
- This transition from the liquid state to the solid state is accompanied by a significant production of heat.
- This heat being, in a way, "stored” in the liquid and, as a result, such products are sought for making heating bags or heaters since the user has a certain amount of heat which he can release according to his need.
- the external agent consists of a trigger immersed in the liquid and which is manipulated by the user through the walls of the bag.
- the trigger generally consists of a metal part immersed in the liquid. Generally this part is in the form of a thin flexible patch having narrow slots.
- the literature on the subject is abundant and, among these, one can quote the American patents N ° 4572158, N ° 45321 10, N ° 4460546, N ° 4077390 and the international application N ° WO87 / 05095.
- a trigger constituted by a spring wound in a helix with contiguous turns.
- the spring is enclosed in a housing, in two parts. , with small diameter perforations at its ends and on its side wall.
- the present invention which overcomes these drawbacks, is remarkable in that the trigger, which is constituted by a spring with contiguous turns of a known type, is placed and maintained in a flexible tube whose length is greater than that of the spring. .
- the external diameter of the spring is substantially equal to the internal diameter of the tube so that said spring can be easily engaged in said tube and be held there by friction.
- the trigger is constituted by a metal spring 1, wound in a helix.
- the spring 1 is placed in a flexible section of tube 2, the length of which is greater than that of said spring.
- the diameter of the spring and that of the inner tube are of substantially equal dimensions so that the introduction of said spring into the tube can be carried out easily, while then ensuring that said spring is held in the tube.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP98952811A EP0958482A1 (fr) | 1997-10-30 | 1998-10-29 | Declencheur pour chaufferette a liquide en surfusion |
| AU10374/99A AU1037499A (en) | 1997-10-30 | 1998-10-29 | Release switch for supercooled liquid heater |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9713616A FR2770627B1 (fr) | 1997-10-30 | 1997-10-30 | Declencheur pour chaufferette a liquide en surfusion |
| FR97/13616 | 1997-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1999023436A1 true WO1999023436A1 (fr) | 1999-05-14 |
Family
ID=9512828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1998/002314 Ceased WO1999023436A1 (fr) | 1997-10-30 | 1998-10-29 | Declencheur pour chaufferette a liquide en surfusion |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0958482A1 (fr) |
| AU (1) | AU1037499A (fr) |
| FR (1) | FR2770627B1 (fr) |
| WO (1) | WO1999023436A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2818362A1 (fr) | 2000-12-19 | 2002-06-21 | Power Flex | Recipient renfermant une composition apte a restituer de la chaleur ou une composition accumulatrice de froid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987001275A1 (fr) * | 1985-08-28 | 1987-03-12 | Crewsaver Marine Equipment Limited | Dispositif activateur ameliore pour modules thermiques |
| WO1989010520A1 (fr) * | 1988-04-22 | 1989-11-02 | Hettel Bernd R | Generateur thermique a liquide surfondu et dispositif de declenchement |
| US5645749A (en) * | 1995-08-04 | 1997-07-08 | Wang; Charles | Heat pack capable of being recharged by microwave energy |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4077390A (en) | 1976-08-02 | 1978-03-07 | Marc F. Fiedler | Reusable heat pack containing supercooled solution and means for activating same |
| US4460546A (en) | 1980-08-11 | 1984-07-17 | Kapralis Imants P | Trigger to controllably initiate crystallization |
| US4532110A (en) | 1983-12-27 | 1985-07-30 | Imants P. Kapralis | Protected trigger to controllably initiate crystallization |
| US4572158A (en) | 1984-09-12 | 1986-02-25 | Topazon Limited | Trigger to activate aqueous salt solution for use in a heat pack and method of making the same |
-
1997
- 1997-10-30 FR FR9713616A patent/FR2770627B1/fr not_active Expired - Fee Related
-
1998
- 1998-10-29 AU AU10374/99A patent/AU1037499A/en not_active Abandoned
- 1998-10-29 WO PCT/FR1998/002314 patent/WO1999023436A1/fr not_active Ceased
- 1998-10-29 EP EP98952811A patent/EP0958482A1/fr not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987001275A1 (fr) * | 1985-08-28 | 1987-03-12 | Crewsaver Marine Equipment Limited | Dispositif activateur ameliore pour modules thermiques |
| WO1989010520A1 (fr) * | 1988-04-22 | 1989-11-02 | Hettel Bernd R | Generateur thermique a liquide surfondu et dispositif de declenchement |
| US5645749A (en) * | 1995-08-04 | 1997-07-08 | Wang; Charles | Heat pack capable of being recharged by microwave energy |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2770627B1 (fr) | 2000-01-21 |
| AU1037499A (en) | 1999-05-24 |
| EP0958482A1 (fr) | 1999-11-24 |
| FR2770627A1 (fr) | 1999-05-07 |
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