Westinghouse Electric Corporation

Allan J Bamford, Deceased

Natraj C Iyer

Robert L Thomas

Copper-chromium contacts and copper-ferrous material shields are used in vacuum circuit interrupters. The copper chromium contacts include a specific copper-iron non-abutting section, and an abutting layer preferably of copper-chromium with a layer thickness that constitutes about 50% of the total thickness of the contact which constitutes the abutting section of the contact structure. The shield for the contacts, are preferably formed of copper-ferrous material and 'X' in which 1%-50% is ferrous material, and 'X'=chromium 0% to 30% and ferrous material plus 'X' is less than 60% of the total shield. The contacts and shields are formed by a powder metallurgical procedure.

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Horseheads, NY, United States of America

Allan J Bamford, Deceased