Vented plastic enclosure for arcing devices

Details Vented plastic enclosure for arcing devices Vented plastic enclosure for arcing devices

1978-11-06

1981-04-07

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200149A, H01H 3308

Patent

active

042608635

ABSTRACT:
The cover of a housing has one or more projections which extend into a slot or respective slots in the main body of the housing. Each projection is spaced from the walls defining the slot so as to form a passageway from the interior of the housing to the outside. This passageway is sufficiently long and narrow as to cool burning gases initiated within the housing by an arc, the cooling being sufficient to extinguish the flame before it reaches the exterior of the housing. The passageways completely encircle the interior compartment of the housing so as to provide sufficient passageway area to relieve the internal pressure caused by an explosion within that compartment sufficiently that plastic can be used for the material of the housing.

REFERENCES:
patent: 2050346 (1936-08-01), Lingal
patent: 3675007 (1972-07-01), Appleton et al.
patent: 3739122 (1973-06-01), Pierzchala
patent: 3927249 (1975-12-01), Pearse

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