Electric contact with base metal

Details Electric contact with base metal Electric contact with base metal

1991-04-02

1992-08-18

Cusick, Ernest G.

Electricity: circuit makers and breakers

Electric switch details

Contact

200267, 200265, 200268, 200278, 200279, H01H 150, H01H 102

Patent

active

051401142

ABSTRACT:
An electric contact with a base metal used as a switch wherein the non-welded peripheral portion of the contact is prevented from bow-like bending and from peeling off. The electric contact with a base metal having a contact promoting shape is formed by die forging of a contact material joined to the base metal by resistance welding. The composite contact material is prepared by coating the core material of Ag-oxide contact material with non-oxide contact material. The side of the material in contact with the base metal is of non-oxide contact material. The contact material may be pressed to fill a groove preformed in the base metal, welded to protrusions preformed in the base metal, welded to the bottom of a cut preformed in the base metal, or welded to bottoms of recesses preformed in the base metal.

REFERENCES:
patent: 2694126 (1954-11-01), Binstock
patent: 2715169 (1955-08-01), High
patent: 3341943 (1967-09-01), Gwyn, Jr.
patent: 3346951 (1967-10-01), Gwyn, Jr.
patent: 3488841 (1970-01-01), Stern
patent: 3499211 (1970-03-01), Dubuc
patent: 3688067 (1972-08-01), Shibata
patent: 4803322 (1989-02-01), Shibata

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