Global Patent Index - EP 1028507 A1

EP 1028507 A1 2000-08-16 - Spark plug

Title (en)

Spark plug

Title (de)

Zündkerze

Title (fr)

Bougie d'allumage

Publication

EP 1028507 A1 (DE)

Application

EP 99121391 A

Priority

DE 19905771 A

Abstract (en)

The spark plug includes an insulator foot (20) mounted at a casing (60), and a central electrode (10) led through the insulator foot, which is exposed at the insulator foot tip. An intermediate electrode (30) is separated through a first spark path (F1) from the central electrode. A ground electrode (50) is mounted at the casing. A solid insulator arrangement (40) is provided between the intermediate electrode and the ground electrode, forming a second, sliding spark path (F2) proceeding above the solid insulator arrangement.

Abstract (de)

Es wird eine Zündkerze vorgeschlagen mit einem Gehäuse (60, 160, 260, 360, 460); einem am Gehäuse (60, 160, 260, 360, 460) angebrachten Isolatorfuß (20, 120, 220, 320, 420); einer durch den Isolatorfuß (20, 120, 220, 320, 420) geführten Mittelelektrode (10, 110, 210, 310, 410), welche an der Isolatorfußspitze übersteht; einer Zwischenelektrode (30, 130, 230, 330, 430), welche durch eine erste Funkenstrecke (F1, F11, F31a, F41a, F51a) zur Mittelelektrode (10, 110, 210, 310, 410) beabstandet ist; einer am Gehäuse (60, 160, 260, 360, 460) angebrachten Masseelektrode (50, 150, 250, 350, 450). Zwischen der Zwischenelektrode (30, 130, 230, 330, 430) und der Masseelektrode (50, 150, 250, 350, 450) ist eine Festkörper-Isolatoreinrichtung (40, 140, 240, 340, 440) vorgesehen, welche eine zweite Funkenstrecke (F2, F12, F22, F32, F42) in Form einer über der Festkörper-Isolatoreinrichtung (40, 140, 240, 340, 440) verlaufenden Gleitfunkenstrecke bildet.

IPC 1-7 (main, further and additional classification)

H01T 13/52; H01T 13/46

IPC 8 full level (invention and additional information)

H01T 13/46 (2006.01); H01T 13/52 (2006.01)

CPC (invention and additional information)

H01T 13/52 (2013.01); H01T 13/462 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

EP 1028507 A1 20000816; EP 1028507 B1 20030326; DE 19905771 A1 20000817; US 6531809 B1 20030311

INPADOC legal status


2004-07-30 [REG FR ST] NOTIFICATION OF LAPSE

2004-06-30 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: FR

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20040630

2004-05-01 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DE

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20040501

2004-03-17 [26N] NO OPPOSITION FILED

- Effective date: 20031230

2003-12-12 [ET] FR: TRANSLATION FILED

2003-09-24 [GBV] GB: EP PATENT (UK) TREATED AS ALWAYS HAVING BEEN VOID IN ACCORDANCE WITH GB SECTION 77(7)/1977

- Effective date: 20030326

2003-04-30 [REF] CORRESPONDS TO:

- Document: DE 59904720 P 20030430

2003-03-26 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): DE FR GB IT

2003-03-26 [REG GB FG4D] EUROPEAN PATENT GRANTED

- Free text: NOT ENGLISH

2003-03-26 [PG25 GB] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: GB

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20030326

2003-03-26 [PG25 IT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: IT

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20030326

2001-05-16 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010403

2001-05-02 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE FR GB IT

2001-04-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010216

2000-08-16 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT

2000-08-16 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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