Electricity: conductors and insulators – Insulators – Through wall or plate
Patent
1982-11-04
1985-05-21
Askin, Laramie E.
Electricity: conductors and insulators
Insulators
Through wall or plate
128419P, H01B 1726
Patent
active
045188203
ABSTRACT:
A ferrule made from an electrically conductive material has a coefficient of thermal expansion which changes at a particular rate with temperature changes. The ferrule is attached to an electrically conductive lid as by the application of heat and has a body portion pivotally movable at a particular position, such as a heat sink, on the body portion. Such heat sink has a minimal thickness in the body portion. When the ferrule is being attached to the lid as by heat, the heat becomes concentrated in the ferrule at the heat sink. A first ceramic material disposed within the ferrule has hard and rigid properties and is supported by the ferrule above the heat sink. The first ceramic material is preferably fused partially to the ferrule to provide for variations in its pivotal disposition relative to the ferrule. A second ceramic material within the ferrule is fused to the ferrule and the first ceramic material. The second ceramic material has more amorphous properties than the first ceramic material. The second ceramic material has a coefficient of thermal expansion which changes at substantially the particular rate with changes in temperature. Insulating material on the second material is fused to such ceramic material. The insulating material has a coefficient of thermal expansion which changes at substantially the particular rate with temperature changes. The insulating material isolates a plurality of terminal pins electrically to prevent the formation of dendrites between the pins. The pins extend through the ferrule and the lid.
REFERENCES:
patent: 2318435 (1943-05-01), Stupakoff et al.
Askin Laramie E.
Roston Ellsworth R.
Schwartz Charles H.
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