초록 ▼

A terminal pin seal for an hermetic terminal assembly including at least two laminations one of which has the inner surface adjacent the assembly structure with electrochemical properties resistant to attack from chemical ingredients within the assembly and another of which laminations has the outer

A terminal pin seal for an hermetic terminal assembly including at least two laminations one of which has the inner surface adjacent the assembly structure with electrochemical properties resistant to attack from chemical ingredients within the assembly and another of which laminations has the outer surface adjacent to ambient with electrochemical properties different from that lamination facing the assembly housing to produce a greater resistance to chemical attack from ambient.

대표청구항 ▼

In an hermetic terminal assembly having a terminal pin extending from within the assembly through an apertured assembly wall to ambient, said assembly housing having a corrosive environment, an improved aperture seal structure between said pin and assembly wall comprising: a first substantially flat

In an hermetic terminal assembly having a terminal pin extending from within the assembly through an apertured assembly wall to ambient, said assembly housing having a corrosive environment, an improved aperture seal structure between said pin and assembly wall comprising: a first substantially flat aperture sealing lamination having spaced inner and outer planar surfaces extending continuously between the outer peripheral surface of said terminal pin and the periphery of said assembly wall aperture with said inner surface of said first lamination being adjacent and exposed to said corrosive environment of said assembly structure, said first sealing lamination having corrosive resistant properties to produce a preselected resistance to attack from ingredients producing said corrosive environment within the assembly; and, a second flat aperture sealing lamination having spaced inner and outer planar surface extending continuously between the outer peripheral surface of said terminal pin and the periphery of said assembly wall aperture with said outer surface adjacent ambient, said second aperture sealing lamination having corrosion resistant properties different from those of said first aperture sealing lamination to produce a preselected resistance to attack from ambient conditions; said first and said second sealing laminations being of different corrosive resistant properties but with similar viscosities having setting points within approximately 10°C. of each other and coefficients of expansion within approximately 1% of each other which coefficients of expansion are compatible with that of the material to which the sealing laminations are sealingly bonded.