Glass-metal feedthrough
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United States of America
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Jan 4, 2022
Grant Date -
Jan 23, 2020
app pub date -
Jul 19, 2019
filing date -
Jul 19, 2019
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A glass-metal feedthrough consists of an external conductor, a glass material and an internal conductor. The internal conductor has a coefficient of expansion αinternal, the glass material has a coefficient of expansion αglass, and the external conductor has a coefficient of expansion αexternal. The coefficient of expansion of the internal conductor αinternal is greater than the coefficient of expansion of the glass material αglass and the coefficient of expansion of the external conductor αexternal is at least 2 ppm/K, such as at least 4 ppm/K, greater than the coefficient of expansion of the glass material αglass in the temperature range of 20° C. to the glass transformation temperature.
First Claim
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International Classification(s)
- H01J:ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- C03C:CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREO....
- H01M:PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT....
- H01B:CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATER....
- B60R:VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT ....
- F42B:EXPLOSIVE CHARGES, e.g. FOR BLASTING; FIREWORKS; A....
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