Claims
- 1. A device for avoiding local overhating comprising:
- an intrinsically safe measuring transducer;
- a sealing composition in which said transducer is embedded;
- a current limiting resistor connected to said transducer; and
- a single body made of a good heat conducting material spaced from but within the direct vicinity of the current limiting resistor and entirely embedded within said sealing composition so as to distribute heat more uniformly over the entire surface of said sealing composition than when said body is not present, said single body being the only good heat conducting material of said device so that heat is not dissipated at said surface of said sealing composition by other good heat conducting materials.
- 2. A device according to claim 1 wherein the body is made of copper or aluminum or of both copper and aluminum.
- 3. A device according to claim 2 wherein the body is in the form of a plate.
- 4. A device according to claim 1 wherein the body is made of beryllium oxide, aluminum oxide, aluminum nitride, or a mixture thereof.
- 5. A device according to claim 4 wherein the body is in the form of a plate.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3443702 |
Nov 1984 |
DEX |
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Parent Case Info
This is a continuation of application Ser. No. 798,799, filed Nov. 15, 1985, which was abandoned upon the filing hereof.
US Referenced Citations (4)
Foreign Referenced Citations (1)
Number |
Date |
Country |
2937218 |
Apr 1981 |
DEX |
Continuations (1)
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Number |
Date |
Country |
Parent |
798799 |
Nov 1985 |
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