Electricity: conductors and insulators – Insulators – Through wall or plate
Patent
1982-07-19
1984-10-30
Askin, Laramie E.
Electricity: conductors and insulators
Insulators
Through wall or plate
339126R, 339192RL, 339218M, H01R 916, H01B 1726
Patent
active
044801513
ABSTRACT:
A hermetically sealed terminal having improved leakage resistance, the terminal comprising a support member having a base with at least one annular opening therein and a pair of concentric sleeves associated with the opening and projecting outwardly from one side of the base, with an elongated terminal pin extending centrally through the sleeves, the terminal pin being secured to the support member by a molded dielectric sealing member bonded to the terminal pin and to the opposite surfaces of the base, integral portions of the sealing member filling the innermost sleeve and the annular space between the two sleeves and being bonded to the inner and outer surfaces of the sleeves to effectively increase the area of interface between the sealing member and the support member so as to inhibit the formation of leakage paths from one side of the terminal to the other due to thermal expansion and contraction of the parts. The invention also contemplates the provision of an improved terminal pin construction to inhibit the formation of leakage paths between the terminal pin and the sealing member, the terminal pin having knurled portions extending outwardly beyond the opposite ends of the sleeve which effectively prevents transmission of torque forces between the outer ends of the pins and the central portion thereof lying between the knurls.
REFERENCES:
patent: 1526023 (1925-02-01), Steinberger
patent: 2299750 (1942-10-01), Hull et al.
patent: 2513305 (1950-07-01), Gagnier et al.
patent: 2748187 (1956-05-01), Conrad
patent: 3770878 (1973-11-01), Dozier
patent: 3775547 (1973-11-01), Woods
patent: 4356469 (1982-10-01), Dozier
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