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Current content: 157 337 350 patent documents

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219 431 new documents added

1 247 852 documents amended

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EP 1471307 B1 20070221 - Glow plug

Title (en)

Glow plug

Title (de)

Glühkerze

Title (fr)

Bougie à incandescence

Publication

EP 1471307 B1 20070221 (EN)

Application

EP 04252379 A 20040423

Priority

JP 2003118961 A 20030423
JP 2004010149 A 20040119

Abstract (en)

[origin: EP1471307A1] A rod-like insulator (14) is disposed within a metallic tube (2) to form a clearance between the insulator and metallic tube. A coil member (5) encircles the outer circumferential surface of insulator. Insulating powder (15), which fills interior of material tube, is charged into the metallic tube. The insulator is formed of insulating material with thermal conductivity lower than the insulating powder.

IPC 8 full level

F23Q 7/00 (2006.01)

CPC (source: EP US)

F23Q 7/001 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR

DOCDB simple family (publication)

EP 1471307 A1 20041027; EP 1471307 B1 20070221; DE 602004004827 D1 20070405; DE 602004004827 T2 20071031; JP 2004340562 A 20041202; US 2004222207 A1 20041111

DOCDB simple family (application)

EP 04252379 A 20040423; DE 602004004827 T 20040423; JP 2004010149 A 20040119; US 82816904 A 20040421