Browse Prior Art Database

Bimetallic Connectors

IP.com Disclosure Number: IPCOM000095416D
Original Publication Date: 1964-Jan-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Kwei, TC: AUTHOR [+2]

Abstract

The bimetallic connectors are for applications having changes in temperature of wide variation down to cryogenic temperatures. The same principles apply for changes in temperature of a smaller range. Bimetallic elements are used as electrical connectors and pressure connectors or conductors for use as in memory plane assembly.

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Bimetallic Connectors

The bimetallic connectors are for applications having changes in temperature of wide variation down to cryogenic temperatures. The same principles apply for changes in temperature of a smaller range. Bimetallic elements are used as electrical connectors and pressure connectors or conductors for use as in memory plane assembly.

At room temperature, in the upper left drawing, bimetal conductor 10 is fixed at the end 12. The other end is in the released nonconductive position. Thus, a memory plane surface. When the assembly is subjected to the helium temperature 4 degrees K, as in the upper right drawing, conductor 10, composed of two bonded metals of different temperature coefficients of expansion, bends towards surface 11. A pressure connection and also an electrical connection are established. To make good electrical contact, a superconducting material such as lead can be deposited on the connector. A further coating of gold can minimize oxidation of the contact area.

The two lower drawings deal with the electrical connection of printed conductors on two adjoining tape cable ends 23 and 24. Overlying ends 23 and 24 is printed circuit board 22. This has a series of conductive stripes facing downwardly and matching in position the conductive stripes on the top faces of ends 23 and 24. At room temperature, in the lower left drawing, bimetal comb or spring 21 is tightly assembled over board 22. It is clamped between base 25 and cover 20 fastened...