responsive to changes in electrical conductivity

Full Title

Power-operated mechanisms for wings > Safety devices, e.g. detection of obstructions or end positions > Detection using safety edges > responsive to changes in electrical conductivity

Classification Context

Section:

FIXED CONSTRUCTIONS

Class:

LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES

Subclass:

DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING