Latching switch

Details Latching switch Latching switch

1976-09-07

1978-12-05

Engle, Samuel W.

Electricity: circuit makers and breakers

Electric switch details

Contact

200 16F, 200288, H01H 150

Patent

active

041287495

ABSTRACT:
Electric switches work with an electric arc when they switch on or off. A bridge of ionized gas builds up in an air gap between the metal contacts. The larger and the more open to the outside this air gap is, the easier the arc will break up; an air draft raised by heat will lift the gas bridge from the contacts quickly, if the gap is not cased in. The present invention is a switch, offering an all-around escape for ionized, hot gases out of that air gap. At the same time, by a large lever movement a flying contact is being latched between lugs of counter contacts which form a wedge holder, thus forestalling a return of the lever. This switch is simpler to make than the conventional fulcrum metal lever, pushing with its lower end a coilspring aside and pressing contact to contact.

REFERENCES:
patent: 704694 (1902-07-01), Creveling
patent: 3624333 (1971-11-01), Schurr

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