Title (en)

BRIDGELESS TUNGSTEN HALOGEN LAMP

Publication

EP 0173995 A3 19881012 (EN)

Application

EP 85111055 A 19850902

Priority

US 64728784 A 19840904

Abstract (en)

[origin: EP0173995A2] A single-ended, tungsten halogen lamp having a tubular hard glass envelope containing an inert gas and a halogen, preferably bromine, therein. An improved bridgeless support structure is provided in which a wire support is attached to one end of a pair of filament coils. The wire support extends in two directions from the point of attachment and includes two extension portions which are each secured in the press-sealed base portion of the envelope to provide a fixed filament support with improved shock resistant capabilities and with reduced possibility of contamination due to elimination of the bridge element. A method of making the lamp is also described.

IPC 1-7

H01K 1/18; H01K 3/06

IPC 8 full level

H01K 1/18 (2006.01); H01K 3/06 (2006.01)

CPC (source: EP)

H01K 1/18 (2013.01); H01K 3/06 (2013.01)

Citation (search report)

• [A] FR 1381868 A 19641214 - LAMPES SA
• [A] US 3403280 A 19680924 - CARDWELL JR JOHN G
• [A] US 4208608 A 19800617 - ANDERSON HAROLD G [US]
• [A] FR 1563565 A 19690411
• [AD] US 4415833 A 19831115 - OETKEN JAMES E [US], et al

Designated contracting state (EPC)

BE DE FR GB NL

DOCDB simple family (publication)

EP 0173995 A2 19860312; EP 0173995 A3 19881012; CA 1245704 A 19881129; JP S6166357 A 19860405

DOCDB simple family (application)

EP 85111055 A 19850902; CA 486632 A 19850710; JP 19328785 A 19850903