Stock material or miscellaneous articles – Structurally defined web or sheet – Nonplanar uniform thickness material
Patent
1982-07-13
1984-02-07
McCamish, Marion
Stock material or miscellaneous articles
Structurally defined web or sheet
Nonplanar uniform thickness material
65 591, 65 594, 65 5934, 403179, 403 29, 403 30, 403404, 428432, 428433, 428 76, B32B 104, B32B 1500
Patent
active
044303769
ABSTRACT:
A glass-to-metal compression sealed lead-in structure for electronic devices. The structure is constituted by an outer metal case having a high coefficient of thermal expansion (CTE), a lead-in conductor extending through the opening in the case and having a relatively low CTE, and a glass seal filling the space between the conductor and the case and having a relatively low or intermediate CTE. The conductor is fabricated of a machinable metal whose normal CTE is higher than required, the surface of the metal after the conductor is machined to specification, being treated with a substance that acts to reduce the CTE of the conductor to render it compatible with the CTE of the glass seal.
REFERENCES:
patent: 3035372 (1962-05-01), Mayers
patent: 3264015 (1966-08-01), Mayers
patent: 3370874 (1968-02-01), Scherer et al.
patent: 3371413 (1968-03-01), Rundle
patent: 4029897 (1977-06-01), Mayer
patent: 4128697 (1978-12-01), Simpson
Metals Handbook 9th Edition, vol. 4, Heat Treating "Gas Carburizing" p. 135 by ASM Committee 81.
Dictionary of Metallurgy by Merriman, 1958, p. 30.
Buffalow E. Rollins
Ebert Michael
McCamish Marion
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