Global Patent Index - EP 0124368 B1

EP 0124368 B1 19891220 - ELECTRIC DISCHARGE LAMP WITH THERMAL SWITCH

Title (en)

ELECTRIC DISCHARGE LAMP WITH THERMAL SWITCH

Publication

EP 0124368 B1 19891220 (EN)

Application

EP 84302857 A 19840427

Priority

US 48962383 A 19830428

Abstract (en)

[origin: EP0124368A1] An electric discharge lamp has an arc tube within an outer gas filled glass envelope and a thermal switching means (47) is located within the outer envelope. The thermal switching means has a silica support (53) with a pair of electrical conductors affixed (51, 55) thereto and a bimetal strip (57) and a spring-like member (61) are affixed to at least one of the electrical conductors, whereby upon application of heat the bimetal strip (57) and spring-like member (61) are flexed to short-circuit the electrical conductors and remove any D.C. potential between the main electrode and the starting electrode minimizing electrolysis.

IPC 1-7

H01J 7/44; H01J 17/34; H01J 61/56; H05B 41/06

IPC 8 full level

H01J 61/56 (2006.01); H05B 41/06 (2006.01)

CPC (source: EP)

H01J 61/56 (2013.01); H05B 41/06 (2013.01)

Designated contracting state (EPC)

BE DE FR GB NL

DOCDB simple family (publication)

EP 0124368 A1 19841107; EP 0124368 B1 19891220; CA 1232317 A 19880202; DE 3480821 D1 19900125

DOCDB simple family (application)

EP 84302857 A 19840427; CA 451395 A 19840405; DE 3480821 T 19840427