EP 1521288 B1 20080903 - Magnetron for microwave oven
Title (en)
Magnetron for microwave oven
Title (de)
Magnetron fur Mikrowellenherd
Title (fr)
Magnétron pour four à micro-ondes
Publication
Application
Priority
JP 2003203546 A 20030730
Abstract (en)
[origin: EP1521288A2] A magnetron for microwave oven comprising a metallic sealing member (19) forming a high frequency choke having a cylindrical double wall structural portion, an insulating cylinder (20) joined to the metallic sealing member (19) and an antenna lead (22) passing through the inside of both the metallic sealing member (19) and the insulating cylinder (20), a flat surface (19a) is provided on the annular joining region of the metallic sealing member (19) to the insulating cylinder (20), and further an inside tapered portion whose inner diameter varies gradually and gets dose to the antenna lead (22) is provided on the inner wall structural portion, which becomes a double wall structural portion, of the metallic sealing member (19) as is continuing into the annular flat surface.
IPC 8 full level
H01J 23/40 (2006.01); H01J 23/54 (2006.01); H01J 25/50 (2006.01); H01J 25/587 (2006.01)
CPC (source: EP KR)
H01J 23/15 (2013.01 - KR); H01J 23/40 (2013.01 - EP KR); H01J 23/44 (2013.01 - KR); H01J 23/54 (2013.01 - KR); H01J 25/587 (2013.01 - EP KR)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1521288 A2 20050406; EP 1521288 A3 20080109; EP 1521288 B1 20080903; CN 100511565 C 20090708; CN 1577701 A 20050209; DE 602004016261 D1 20081016; JP 2005050572 A 20050224; JP 3944470 B2 20070711; KR 101010755 B1 20110125; KR 20050014696 A 20050207
DOCDB simple family (application)
EP 04291898 A 20040726; CN 200410055802 A 20040730; DE 602004016261 T 20040726; JP 2003203546 A 20030730; KR 20040059475 A 20040729