Dust venting contact with a non-circular hole

Details Dust venting contact with a non-circular hole Dust venting contact with a non-circular hole

1982-08-04

1983-10-25

Shepperd, John W.

Electricity: circuit makers and breakers

Special application

Liquid or moisture responsive

200242, H01H 118

Patent

active

044121130

ABSTRACT:
In a push-on switch comprising a moving contact 6 of partial-hemisphere-face-shaped resilient metal diaphragm which is disposed with its periphery on a pair of peripheral fixed contacts 2b,2b in a contacting manner and at its central part apart above a central fixed contact 2a in an isolated manner at normal state,

REFERENCES:
patent: 3133170 (1964-05-01), Nanninga
patent: 3673357 (1972-06-01), Molchan
patent: 3742157 (1973-06-01), Leposavic
patent: 3982089 (1976-09-01), Hyltin
patent: 3996429 (1976-12-01), Chu et al.
patent: 4084071 (1978-04-01), Smith
patent: 4194105 (1980-03-01), Hodges

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