Joints and connections – Diverse material coupling member
Patent
1981-03-30
1985-04-09
Kundrat, Andrew V.
Joints and connections
Diverse material coupling member
403272, 65 5924, F16B 1100
Patent
active
045098808
ABSTRACT:
A very high hermeticity glass to metal seal comprising a round cylindrically shaped glass member having an outside diameter; a tubular sleeve of resilient metal having (i) a first end with an inside diameter slightly larger than said outside diameter of said glass member, and (ii) a reduced diameter portion adjacent to said first end thereof with the diameter of said reduced diameter portion being slightly smaller than the outside diameter of the glass member; a thin metalized layer on a first end of the glass member adapted to be inserted into said first end of the tubular metal sleeve so as to define an annular gap therebetween, the glass member being inserted as far as possible into the sleeve so that the end thereof is into abutting relation with said reduced diameter portion of said sleeve so as to form a capillary gap therebetween. Subsequently solder means is flowed, while in a molten form, into said annular gap pursuant to a pulling-like force into said capillary gap thus forming, when said solder means cools, a very high hermeticity glass to metal seal.
REFERENCES:
patent: 2728425 (1955-12-01), Day
patent: 2842699 (1958-07-01), Germeshausen et al.
patent: 2848594 (1958-08-01), Aversten
patent: 3030124 (1962-04-01), Holloway
patent: 3667109 (1972-06-01), Alcenlus
patent: 4103200 (1978-07-01), Bhalla
Book: Glass-To-Metal Seals, by J. H. Partridge, published in 1949, by The Society of Glass Technology, "Elmfield", Northumberland Rd., Sheffield, 10, England, Chapter 6 cited, pp. 70-86.
Buckingham Stephen W.
Honeywell Inc.
Jensen Roger W.
Kundrat Andrew V.
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