EP 1102310 A1 20010523 - Filament assembly for an incandescent lamp comprising screw-in end plugs and method of manufature thereof
Title (en)
Filament assembly for an incandescent lamp comprising screw-in end plugs and method of manufature thereof
Title (de)
Fadenaufstellung für eine Glühlampe mit hineinschraubenden Endstopfen und ihr Herstellungsverfahren
Title (fr)
Montage d'un filament pour une lampe à incandescence comprenant des bouchons d'extrémité visés et sa méthode de fabrication
Publication
Application
Priority
GB 9927728 A 19991119
Abstract (en)
A filament assembly for an incandescent lamp includes a helically coiled filament (13) and a helically coiled end plug (10) engaging an end of the filament (13). The end plug comprises a coil having a first section (11) with a diameter and pitch adapted to engage in the end of the filament coil, and a second section (12) having a pitch different from the pitch of the first section. The second section (12) of the end plug also engages the outside of a current lead wire (14), to mount the filament on the lead wire. A method of manufacture of such a filament assembly is also described. <IMAGE>
IPC 1-7
IPC 8 full level
H01K 1/14 (2006.01); H01K 1/18 (2006.01); H01K 3/06 (2006.01)
CPC (source: EP)
H01K 1/14 (2013.01); H01K 1/18 (2013.01); H01K 3/06 (2013.01)
Citation (search report)
- [XAY] GB 2305585 A 19970409 - GE LIGHTING LTD [GB]
- [XAY] EP 0438254 A2 19910724 - THORN LAMPS LTD GE [GB]
- [A] GB 1340778 A 19740130 - THORN ELECTRICAL IND LTD
- [A] US 4812710 A 19890314 - KLAM RUEDIGER [DE], et al
- [A] US 3535577 A 19701020 - NOTELTEIRS VICTOR ROSALLIE, et al
- [A] DATABASE WPI Section PQ Week 200039, Derwent World Patents Index; Class P52, AN 2000-450115, XP002160585
- [YPA] PATENT ABSTRACTS OF JAPAN vol. 2000, no. 07 29 September 2000 (2000-09-29)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1102310 A1 20010523; GB 2356488 A 20010523; GB 9927728 D0 20000126; JP 2001196030 A 20010719
DOCDB simple family (application)
EP 00310247 A 20001117; GB 9927728 A 19991119; JP 2000350343 A 20001117