EP 1212774 A4 20020814 - LASER GAPPING OF MAGNETIC CORES
Title (en)
LASER GAPPING OF MAGNETIC CORES
Title (de)
VERFAHREN ZUR SPALTUNG MITTELS LASER VON MAGNETKERNEN
Title (fr)
FORMATION AU LASER D'ENTREFERS DANS DES TORES MAGNETIQUES
Publication
Application
Priority
- US 0002231 W 20000131
- US 12381799 P 19990311
- US 31002599 A 19990511
Abstract (en)
[origin: WO0054302A1] A method for gapping a ferrite core (10) by coating the core with a stabilizing material (32), fracturing the core with a laser beam (44) thereby creating one or more gaps (47) in the cores magnetic field, optionally opening the fracture to obtain a desired inductance, and then sealing the core.
IPC 1-7
IPC 8 full level
H01F 41/02 (2006.01); H01F 3/14 (2006.01)
CPC (source: EP)
H01F 41/0206 (2013.01); H01F 3/14 (2013.01)
Citation (search report)
- [A] EP 0775765 A2 19970528 - VLT CORP [US]
- [A] GB 2284102 A 19950524 - DOYLE ANTHONY JAMES [GB]
- [A] EP 0167293 A1 19860108 - STANDEX INT CORP [US]
- [A] PATENT ABSTRACTS OF JAPAN vol. 004, no. 162 (E - 033) 12 November 1980 (1980-11-12)
- See references of WO 0054302A1
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)
WO 0054302 A1 20000914; AU 2743000 A 20000928; EP 1212774 A1 20020612; EP 1212774 A4 20020814; HK 1049230 A1 20030502
DOCDB simple family (application)
US 0002231 W 20000131; AU 2743000 A 20000131; EP 00905805 A 20000131; HK 02108993 A 20021212