(under subclass 52) Devices which operate to open or close a circuit in response to the motion of a mechanical tentacle or movable obstruction (feeler) which motion is brought about by the impingement of such feeler against an object (either moving or stationary) due to the motion of the feeler support.
SEE OR SEARCH THIS CLASS, SUBCLASS:
61.62+, for circuit makers and breakers necessarily operated concurrently with the operation or use of a closure member, operator or accessory.
