Electrical switch

Details Electrical switch Electrical switch

1989-01-20

1990-08-21

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

324117H, 324529, H03K 1797, H03K 1790

Patent

active

049509225

ABSTRACT:
An electrical switch incorporating a pushbutton, which is actuatable in opposition to the biasing action of a spring. A permanent magnet is provided in the switch housing as an axial extension of the pushbutton; having a coil arranged opposite thereof which has its distal end surface contacting against an acoustic sensor which is in connection with the contact pins. Hereby, a switching pusher can axially connect with the pushbutton which projects from the housing, at the end of which pusher there is mounted a permanent magnet interiorly of the housing, which is arranged at an axial spacing with regard to the facing end surface of the coil in the unactuated condition of the switch, and in the presence of a depressed pushbutton, is arranged with only a narrow gap axially in front of the coil core.

REFERENCES:
patent: 3596114 (1971-07-01), Maupin et al.
patent: 4218626 (1980-08-01), Fukuda et al.
patent: 4374333 (1983-02-01), Avery
patent: 4514687 (1985-04-01), Van Husen

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