Snap action switch

Details Snap action switch Snap action switch

1978-11-17

1980-09-23

Marcus, Stephen

Electricity: circuit makers and breakers

Suspended-wire controlled

200 16A, 200 67AA, 200241, 200243, 200275, H01H 118, H01H 120, H01H 500

Patent

active

042244897

ABSTRACT:
The snap action switch has a spring biased plunger carrying directly or indirectly at least one articulated contact carrier extending laterally from opposite sides of the plunger and having two convex contacts of cylindrical, semi-circular or prism configuration. These contacts cooperate with stationary contacts arranged in pairs and including at least two pairs with a total of four contacts arranged in a near-rectangle; the contacts of each pair are inclined to each other for defining a trough-like configuration for concurrent engagement with one of the contacts on the carrier. This way, a total of four contact make and break points is defined for a single current path.

REFERENCES:
patent: 2254729 (1941-09-01), Bryant et al.
patent: 2811617 (1957-10-01), Townsend
patent: 2831081 (1958-04-01), Mason
patent: 2967218 (1961-01-01), Dorjee
patent: 3230322 (1966-01-01), Adams et al.
patent: 3253092 (1966-05-01), Landow
patent: 3586795 (1971-06-01), Mentel et al.

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