EP 0789219 B1 20001129 - System state change display device
Title (en)
System state change display device
Title (de)
Systemzustandwechsel-Anzeigegerät
Title (fr)
Dispositif de visualisation du changement d'état d'un système
Publication
Application
Priority
FR 9600625 A 19960119
Abstract (en)
[origin: EP0789219A1] The device for visualising the change of state of a system (1) includes a passive oscillating circuit (2), solidly attached to the system, which is tuned to a specific frequency. The circuit is capable of being connected in a short circuit by a switch (7) which is activated at the moment when the monitored system changes state. The passive circuit is intended to put into resonance by a detection device, external to the system or the passive circuit. The detection device may be tuned to the frequency at which the passive circuit has its resonant frequency. Thus from an external source, the state of the passive circuit and hence the state of the monitored system may be detected.
IPC 1-7
IPC 8 full level
F41H 11/12 (2011.01); F42C 11/00 (2006.01)
CPC (source: EP)
F41H 11/12 (2013.01); F42C 11/007 (2013.01)
Designated contracting state (EPC)
AT CH DE ES GB GR IT LI NL SE
DOCDB simple family (publication)
EP 0789219 A1 19970813; EP 0789219 B1 20001129; AT E197847 T1 20001215; CA 2195469 A1 19970720; DE 69703592 D1 20010104; DE 69703592 T2 20010531; FR 2743878 A1 19970725; FR 2743878 B1 19980327
DOCDB simple family (application)
EP 97400065 A 19970115; AT 97400065 T 19970115; CA 2195469 A 19970117; DE 69703592 T 19970115; FR 9600625 A 19960119