IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0149977
(2000-12-14)
|
우선권정보 |
FR-0016108 (1999-12-17) |
국제출원번호 |
PCT//FR00/03547
(2002-06-17)
|
§371/§102 date |
20020617
(20020617)
|
국제공개번호 |
WO01//45465
(2001-06-21)
|
발명자
/ 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
10 |
초록
▼
A device for heating air, fluids and materials, in dry or wet environments powered in low voltage current or alternating or direct very safe allowable voltage, by increasing the temperature of any type of surface, whether flat or embossed, solid or open-work. The device includes electrodes coated wi
A device for heating air, fluids and materials, in dry or wet environments powered in low voltage current or alternating or direct very safe allowable voltage, by increasing the temperature of any type of surface, whether flat or embossed, solid or open-work. The device includes electrodes coated with a layer of electrically resistant fluid or pasty substance. The assembly of devices is very thin, and is particularly designed for heating premises, swimming pools, pipes exposed to freezing, and container for warm food.
대표청구항
▼
1. A device for heating air, fluid and materials, destined to cover surfaces and objects flat or otherwise, all sizes and shapes, filled-in or cellular, comprisinga non-electrically conducting base surface having first and second electrodes separated from one another by a fixed or variable distance,
1. A device for heating air, fluid and materials, destined to cover surfaces and objects flat or otherwise, all sizes and shapes, filled-in or cellular, comprisinga non-electrically conducting base surface having first and second electrodes separated from one another by a fixed or variable distance, length L, said first and second electrodes being adapted to be electrically connected to a source of electric current; and a material coated on at least a portion of said base surface over length L, said material having an adjustable specific resistance, such that when said first and second electrodes are connected to said source of electric current, said material acts as a heating element, wherein said material comprises a binding agent containing from 10 to 90% by weight in conductive charge of a mixture of a granular base and a base in strip form to provide electrical specific resistance, said granular base and base in strip form being present in a proportion of from 50/50 to 10/90% according to the required final specific resistance. 2. The device of claim 1, wherein said first and second electrodes each comprise a plurality of strips connected to a conductor, and wherein the strips of said first electrode are separated from each other by the strips of said second electrode.3. The device of claim 2, wherein said strips of said first electrode are parallel to one another, and said strips of said second electrode are parallel to one another, and a strip of said first electrode is located between a strip of said second electrode.4. The device of claim 1, wherein said first and second electrode each comprise two symmetrical parts mounted on opposite sides of a base, the first and second electrodes of each part arranged such that the first electrode on the first part are placed in symmetry with the second electrode on the second part.5. The device of claim 1, wherein said material covers said first and second electrodes and said length L between said first and second electrodes.6. The device of claim 1, wherein said granular base comprises particles in which the nucleus is titanium dioxide or silica, covered with a solid solution of a mixture of metal antimony and tin dioxide, and said base in strip form having a base of mica covered in a double oxide of tin and antimony.7. The device of claim 1, further comprising a protective, electrically insulating layer which covers said first and second electrodes and said base surface.8. The device of claim 1, further comprising a flame-proof electrically insulating layer which covers the device.9. The device of claim 1, further comprising an electrical conductor which is adapted to be connected to a ground of said source of electric current.10. The device of claim 1, wherein said device is enclosed within a waterproof covering.11. A method of manufacturing a device designed to heat air, fluid and materials, destined to cover surfaces or objects either flat and/or shaped, comprising:fixing first and second electrodes to a non-electrically conductive base surface, said electrodes being adapted to be electric ally connected to a source of electrical current;, said first and second electrodes being separated from one another by a fixed or variable distance, length L; applying a fluid or sticky material having an adjustable specific resistance to said first and second electrodes and between said first and second electrodes; permitting said fluid or sticky material to dry, wherein said material comprises a binding agent containing from 10 to 90% by weight in conductive charge of a mixture of a granular base and a base in strip form to provide electrical specific resistance, said granular base and base in strip form being present in a proportion of from 50/50 to 10/90% according to the required final specific resistance. 12. The method of claim 11, further comprising applying a layer of electrical insulating material to the whole device.
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