EP 0104595 A2 19840404 - Double-enveloped incandescent lamp.
Title (en)
Double-enveloped incandescent lamp.
Title (de)
Glühlampe mit zwei GefäBen.
Title (fr)
Lampe à incandescence avec deux enveloppes.
Publication
Application
Priority
US 42231182 A 19820923
Abstract (en)
A double-enveloped tungsten halogen incandescent lamp having a light-source capsule containment device wherein a knitted wire mesh surrounds the light-source capsule and may be anchored to the capsule, stem, or lead-in wires. In the event of a burst of the light-source capsule, the containment mesh substantially restricts shards of the capsule from shattering the outer envelope of the lamp. In some embodiments, a crumpled portion of the containment mesh is positioned above the capsule and provides a collision-absorbing cushion in the event the capsule and mesh are propelled against the outer envelope by the burst of the light-source capsule whereby further protection against the shattering of the outer envelope is provided. Lamps with such containment devices have improved operational safety characteristics.
IPC 1-7
IPC 8 full level
H01K 1/26 (2006.01)
CPC (source: EP)
H01K 1/26 (2013.01)
Designated contracting state (EPC)
BE DE FR GB NL
DOCDB simple family (publication)
EP 0104595 A2 19840404; EP 0104595 A3 19841107; EP 0104595 B1 19900704; CA 1214194 A 19861118; DE 3381705 D1 19900809
DOCDB simple family (application)
EP 83109347 A 19830920; CA 437015 A 19830919; DE 3381705 T 19830920