Title (en)

Ignition transformer

Title (de)

Zündtransformator

Title (fr)

Transformateur d' amorçage

Publication

EP 0933975 A3 20001102 (DE)

Application

EP 99101907 A 19990129

Priority

DE 19803856 A 19980131

Abstract (en)

[origin: EP0933975A2] The wire wound secondary (2) is single-layered on a high-resistance, low retentivity core (3). The wire-wound primary (1) comprises a small number of close turns, insulated from the secondary. The ignition transformer is interconnected with a further ignition transformer, secondary voltages being additive.

IPC 1-7

H05B 41/04; H01F 38/12; H01F 38/10

IPC 8 full level

H01F 27/32 (2006.01); H01F 38/10 (2006.01); H01F 38/12 (2006.01); H05B 41/04 (2006.01)

CPC (source: EP)

H01F 27/324 (2013.01); H01F 38/12 (2013.01); H05B 41/04 (2013.01); H05B 41/042 (2013.01)

Citation (search report)

• [Y] DE 19521070 A1 19951221 - NIPPON DENSO CO [JP]
• [Y] EP 0331840 A1 19890913 - HUBBELL INC [US]
• [A] US 5036256 A 19910730 - GARRISON ROBERT L [US], et al
• [A] DE 19610388 A1 19970918 - BOSCH GMBH ROBERT [DE]
• [AD] DE 4117288 A1 19921203 - HELLA KG HUECK & CO [DE]
• [AP] WO 9853647 A1 19981126 - PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH [DE], et al
• [AP] DE 29811368 U1 19980924 - NIGGEMEYER GERT GUENTHER ING G [DE], et al
• [AP] EP 0891123 A1 19990113 - MAGNETI MARELLI SPA [IT]
• [A] PATENT ABSTRACTS OF JAPAN vol. 018, no. 545 (E - 1617) 18 October 1994 (1994-10-18)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0933975 A2 19990804; EP 0933975 A3 20001102; EP 0933975 B1 20020918; AT E224633 T1 20021015; DE 19803856 A1 19990805; DE 59902708 D1 20021024; ES 2184359 T3 20030401

DOCDB simple family (application)

EP 99101907 A 19990129; AT 99101907 T 19990129; DE 19803856 A 19980131; DE 59902708 T 19990129; ES 99101907 T 19990129