Glass-metal feedthrough
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United States of America Patent
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Aug 15, 2023
Grant Date -
N/A
app pub date -
Nov 3, 2021
filing date -
Jul 20, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A glass-metal feedthrough includes: an external conductor having a coefficient of expansion αexternal, and having an opening formed therein; an internal conductor disposed in the opening, the internal conductor including iron and having a coefficient of expansion αinternal, the external conductor and the internal conductor being configured to not release nickel when in contact with a human or animal body or biological cells of a cell culture; and a glass material surrounding the internal conductor within the opening and having a coefficient of expansion αglass, the coefficient of expansion of the internal conductor αinternal and the coefficient of expansion of the external conductor αexternal are such that a joint pressure on the internal conductor of at least 30 MPa is generated in a temperature range of 20° C. to a glass transformation temperature of the glass material.
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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