H - Electricity – 01 – K
Patent
H - Electricity
01
K
313/160, 313/172
H01K 1/70 (2006.01)
Patent
CA 1291204
ABSTRACT The electric lamp for series arrangement comprises at least one current-supply wire (3) of nickel wire, copper wire or copper cladded wire. A shortcircuit switch (5) is provided, which consists of a vitreous mass (6), in which copper powder is dispersed and which is fused with the current-supply wires (3), and of an oxide skin (8), which is present on the said current-supply wire at the sealing-in area in the mass (6). The vitreous mass (6) is electrically conducting. An electrical connection between the current-supply wires (3) is not obtained, however, until the filament (2) burns through and the oxide skin (8), breaks down due to the overvoltage then occurring.
540072
Bauch Wolf-Dieter
Gervelmeyer Rolf
Merker Heinrich B.
Bauch Wolf-Dieter
Fetherstonhaugh & Co.
Gervelmeyer Rolf
Merker Heinrich B.
N.v. Philips Gloeilampenfabrieken
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