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Current content: 157 484 516 patent documents

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147 225 new documents added

921 612 documents amended

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EP 0848391 A1 19980617 - Power coil

Title (en)

Power coil

Title (de)

Leistungsspule

Title (fr)

Bobine de puissance

Publication

EP 0848391 A1 19980617 (EN)

Application

EP 97309536 A 19971126

Priority

CA 2192755 A 19961212
US 76475196 A 19961212

Abstract (en)

A coil having a segmented core where segment spacing is much smaller than segment length may be adjusted to keep hum modulation lower than otherwise when a line containing such coil is connected to a line carrying RF. <IMAGE>

IPC 1-7

H01F 17/04

IPC 8 full level

H01F 3/10 (2006.01); H01F 17/04 (2006.01)

CPC (source: EP)

H01F 3/10 (2013.01); H01F 17/045 (2013.01)

Citation (search report)

[Y] WO 9627888 A1 19960912 - AMERICAN LIGHTWAVE SYST INC [US]
[Y] CH 240899 A 19460131 - PHILIPS NV [NL]
[A] US 2041882 A 19360526 - VANDEGRIFT JAMES N
[A] US 5483208 A 19960109 - SPRIESTER BART F [US]
[A] US 4024479 A 19770517 - DE VRIES THIJS JISSE
[A] US 5425027 A 19950613 - BARAN PAUL [US]

Designated contracting state (EPC)

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

DOCDB simple family (publication)

EP 0848391 A1 19980617; AU 4536197 A 19980625

DOCDB simple family (application)

EP 97309536 A 19971126; AU 4536197 A 19971125