Snap switch having low resistance

Details Snap switch having low resistance Snap switch having low resistance

1993-03-01

1994-04-12

Recla, Henry J.

Electricity: circuit makers and breakers

Snap

Double snap

200459, 200275, 200243, H01H 518

Patent

active

053027892

ABSTRACT:
In a preferred embodiment, a snap switch which employs a conical contact mounted at the free end of a spring blade. The contact completes an electrical circuit by contacting and electrically joining two, round, spaced apart terminals. The resulting dual radii contact provides high unit pressure and a minimum of polymer-forming wiping action. The switch introduces little resistance into the electrical circuit, since the spring blade carries no current. The terminal wires are of nickel with sleeves of oxidized nickel bonded thereto in the region where the wires pass through the base of the switch. The oxide provides a tenacious surface for the adherence thereto of sealing glass to insulatively bond the wires to the base.

REFERENCES:
patent: 2182856 (1939-12-01), Riche
patent: 2439747 (1948-04-01), Nelson
patent: 4017699 (1977-04-01), Hellman
patent: 4447688 (1984-05-01), Schaad et al.
patent: 4839483 (1989-06-01), Doyle

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