EP 0217219 B1 19910102 - MINIATURE INDUCTION COIL AND METHOD OF MAKING THE SAME
Title (en)
MINIATURE INDUCTION COIL AND METHOD OF MAKING THE SAME
Publication
Application
Priority
FR 8513918 A 19850919
Abstract (en)
[origin: US4706058A] A miniature variable inductor comprises a coil soldered to a pair of connecting skids. These skids are clipped to two oppositely disposed lateral walls of an injection-moulded plastics cover in the shape of a hollow die. A solid part of the cover and a hollow space lie between these two walls. A central opening through these walls, the solid part of the cover and the hollow space defines a housing for a movable ferromagnetic core. There is a screwthread on at least part of this core. The coil is disposed in the aforementioned hollow space coaxially with the central opening, encapsulated in resin. The central opening has a threaded portion where it passes through the solid part of the cover. This threaded portion is complementary to the thread on the core.
IPC 1-7
IPC 8 full level
H01F 27/02 (2006.01); H01F 41/00 (2006.01); H01F 41/02 (2006.01); H01F 41/10 (2006.01)
CPC (source: EP US)
H01F 27/027 (2013.01 - EP US); H01F 41/005 (2013.01 - EP US); H01F 41/02 (2013.01 - EP US); H01F 41/10 (2013.01 - EP US); H01F 2017/048 (2013.01 - EP US); Y10T 29/49071 (2015.01 - EP US); Y10T 29/49073 (2015.01 - EP US); Y10T 29/49799 (2015.01 - EP US)
Citation (examination)
FR 2486704 A1 19820115 - CIT ALCATEL [FR]
Designated contracting state (EPC)
BE DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0217219 A1 19870408; EP 0217219 B1 19910102; BR 8604468 A 19870519; CN 1006745 B 19900207; CN 86106038 A 19870318; DE 3676407 D1 19910207; FR 2587537 A1 19870320; FR 2587537 B1 19871030; IN 166417 B 19900505; MX 168164 B 19930507; US 4706058 A 19871110; US 4736513 A 19880412
DOCDB simple family (application)
EP 86112759 A 19860916; BR 8604468 A 19860918; CN 86106038 A 19860917; DE 3676407 T 19860916; FR 8513918 A 19850919; IN 770DE1986 A 19860828; MX 372586 A 19860912; US 8831787 A 19870824; US 90283286 A 19860902