Global Patent Index - EP 1102310 A1

EP 1102310 A1 2001-05-23 - 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

EP 1102310 A1 (EN)

Application

EP 00310247 A

Priority

GB 9927728 A

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 (main, further and additional classification)

H01K 1/18; H01K 3/06

IPC 8 full level (invention and additional information)

H01K 1/14 (2006.01); H01K 1/18 (2006.01); H01K 3/06 (2006.01)

CPC (invention and additional information)

H01K 1/18 (2013.01); H01K 1/14 (2013.01); H01K 3/06 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

EP 1102310 A1 20010523; GB 2356488 A 20010523; GB 9927728 D0 20000126; JP 2001196030 A 20010719

INPADOC legal status


2006-12-20 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20060728

2005-01-05 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20041118

2002-02-20 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE FR GB IT

2002-01-23 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20011123

2001-05-23 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT

2001-05-23 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI