Electric switch

Details Electric switch Electric switch

1980-09-15

1982-11-02

Price, William

Electricity: circuit makers and breakers

Electric switch details

Contact

200153M, 200163, H01H 120

Patent

active

043575099

ABSTRACT:
An electric switch, for example a load switch or safety switch for low voltage, has at least one fixed contact member and two movable contact members, which form parallel current paths and which, in the closed position of the electric switch, are pressed against the fixed contact member on opposite sides thereof under the influence of contact pressure springs. Closing and opening are accomplished by means of a wedge-formed element which is displaceable between the movable contact members, said element being arranged on an operating member linearly displaceable between two end positions. The movable contact members are guided in the switch body in such a way that they move perpendicular to the direction of displacement of the operating member. The movable contact members are of elongated cross-section and have defined contact surfaces and break points. Upon closing and opening of the switch, the movable contact members are forced to rotate with respect to the fixed contact member, which results in a reduced risk of contact welding.

REFERENCES:
patent: 1854039 (1932-03-01), Jones
patent: 3867602 (1975-02-01), Jawelak
patent: 4087668 (1978-05-01), Nakanishi et al.
patent: 4267418 (1981-05-01), Brown
IBM Technical Disclosure Bulletin, vol. 8, No. 8, Jan. 1966, p. 1058, by E. C. Uberbacher & P. Edmons.

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