Door control safety arrangement for transportation system

Details Door control safety arrangement for transportation system Door control safety arrangement for transportation system

2011-03-15

2011-03-15

Salata, Jonathan (Department: 2837)

Elevator, industrial lift truck, or stationary lift for vehicle

With monitoring, signalling, and indicating means

C187S247000, C187S316000

Reexamination Certificate

active

07905330

ABSTRACT:
A system and a method for monitoring a safety circuit are presented. The system includes a control appliance and the safety circuit comprises at least one serial circuit of two or more switches. The arrangement system also includes a way of measuring the status of at least one switch, as well as a way of conveying the status information of the switch to the control appliance. The method includes measuring the status information of at least one switch and sending the measured status information to the control appliance.

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