Electric incandescent lamp for series arrangement having an elec

Details Electric incandescent lamp for series arrangement having an elec Electric incandescent lamp for series arrangement having an elec

1987-06-18

1989-02-28

Moore, David K.

Electric lamp and discharge devices: systems

With automatic shunt and/or cutout

Plural load device systems

315 75, 315123, 315185R, 315185S, H01K 170, H01K 308, H01K 120

Patent

active

048088854

ABSTRACT:
The electric lamp for series arrangement comprises at least one current-supply wire of nickel wire, copper wire or copper cladded wire. A shortcircuit switch is provided, which consists of a vitreous mass, in which copper powder is dispersed and which is fused with the current-supply wires, and of an oxide skin, which is present on the said current-supply wire at the sealing-in area in the mass. The vitreous mass is electrically conducting. An electrical connection between the current-supply wires is not obtained, however, until the filament burns through and the oxide skin breaks down due to the overvoltage then occurring.

REFERENCES:
patent: 1992844 (1935-02-01), Severin et al.
patent: 3611010 (1971-10-01), Strobel
patent: 4233543 (1980-11-01), Hickok
patent: 4340841 (1982-07-01), Schupp

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