Enabler of teaching pendant

Electricity: circuit makers and breakers – Switch activation inhibitor – Actuator blocking device

Reexamination Certificate

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Details

C200S0510LM, C200S522000

Reexamination Certificate

active

07019227

ABSTRACT:
In a case where a left-hand push-button switch is ON, a second relay RL2is electrically de-energized to open a normally close contact RL2-1of the second relay RL2so that a relay contact circuit RC is opened. If, in this state, a right-hand push-button switch is shifted to a second OFF state, a normally close contact R3-1of the right-hand push-button switch is opened. Thus, a third relay RL3is not electrically de-energized and a first and a second circuits are in cutoff until both the right-hand and the left-hand push-button switches are returned to a first OFF state.

REFERENCES:
patent: 6160324 (2000-12-01), Terada et al.
patent: 6180898 (2001-01-01), Terada et al.
patent: 6627830 (2003-09-01), Fukui et al.
patent: 6911609 (2005-06-01), Miyauchi et al.
patent: 0 927 611 (1999-07-01), None
patent: 0 960 697 (1999-12-01), None
patent: 10-291189 (1998-11-01), None
patent: 11-58289 (1999-03-01), None
patent: 11-077579 (1999-03-01), None
patent: 11-329136 (1999-11-01), None
patent: WO 98/47672 (1998-10-01), None
patent: WO 99/10138 (1999-03-01), None

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