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US 4,307,360 AGranted
Sealed electrical contacts
AssigneeBell Telephone Laboratories, Incorporated
InventorsJacques A. Augis, Lon L. Hines
Life of this patent
Estimating the term…
Abstract
A new type of electrical contact is described which has reduced erosion and sticking failures and has reduced material costs. The electrical contact is particularly suitable for sealed electrical contacts such as in sealed remreed contacts.
Claims8
A device comprising a sealed electrical contact in which the contact area of the sealed electrical contact comprises
- a. substrate and a first layer;
- and
- b. a second layer consisting essentially of ruthenium with a thickness from 0.3 to 10.0 .mu.m, characterized in that the first layer consists essentially of copper.
Dependencies are inferred from the claim text.