Switch assembly with unitary contact guide

Details Switch assembly with unitary contact guide Switch assembly with unitary contact guide

1987-05-18

1988-05-10

Thronson, Mark J.

Electricity: circuit makers and breakers

Electric switch details

Contact

200153V, 200241, 200243, 200275, 200 6R, 200290, H01H 150

Patent

active

047437235

ABSTRACT:
A switch assembly includes an insulator base with two stationary contacts mounted on that base. A molded insulated tower and insulated post are unitary with the base and form a guide means and anchor means for a movable contact blade which has two movable contacts to engage the two stationary contacts. The tower has a unitary cap with a surface facing the base and a raised fulcrum on this facing surface. An actuator lever pivots on this raised fulcrum and moves the movable contact blade toward engagement of the pairs of contacts and establishes an over-travel means for the actuator lever after the contacts are in engagement.

REFERENCES:
patent: 2452425 (1948-10-01), Berkholder
patent: 2547765 (1951-04-01), Lund
patent: 2695939 (1954-11-01), Filliette
patent: 2734959 (1956-02-01), Immel
patent: 3018353 (1962-01-01), Mitchell
patent: 3922514 (1975-11-01), Greenhut
patent: 3978303 (1976-08-01), Miyata
patent: 4063056 (1977-12-01), Baker
patent: 4215254 (1980-07-01), Ohki
patent: 4346272 (1982-08-01), Stoll
patent: 4394553 (1983-07-01), Feil

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