Safety switch for monitoring a closed position of two parts...

Details Safety switch for monitoring a closed position of two parts... Safety switch for monitoring a closed position of two parts...

2006-07-06

2010-06-29

Wu, Daniel (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S545100

Reexamination Certificate

active

07746233

ABSTRACT:
A safety switch, which is particularly intended for monitoring a guard door on an automated installation, has an actuator and a sensor. The actuator comprises an actuator antenna and the sensor comprises a sensor antenna. The actuator and the sensor are coupled to one another like a transformer, in particular like a transponder, when the guard door is in the closed position. According to one aspect of the invention, the sensor antenna has a magnetic directional characteristic which allows transformer coupling with the actuator in at least two mutually perpendicular spatial directions as seen from the sensor antenna.

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Michael Euchner; Operating Instructions Non-Contact Safety Switch CES-A-C5E-01/CES-A-C5H-01 / CES-A-C5H-01/ES; Apr. 2006; 13 pages.
Series BZ16 Dual-Channel Non-Contact Safety Interlock Switch; 2 pages, prior to Jan. 9, 2004.
Series BNS16 Coded-Magnet Sensors; 2 pages, prior to Aug. 12, 2004.
EN954-1; Safety-related parts of control systems; Dec. 1996; 34 pages.

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