This class is restricted to the structure of electric current switchingdevices or relays of general application for closing or openingelectrical circuits which devices are magnetically operated or tomagnet structure, per se, either electromagnets or permanent magnets,adapted for use as a source of magnetic flux for performing externalwork.
The devices classified in this class are for the most part ofthe electromagnetic type utilizing magnetic cores and armatures.However, included also are devices of the electrodynamic type whereinmutually coupled conductors are caused to move relative to eachother by the interaction of the magnetic fields produced by theflow of electric currents in the conductors.
Combinations of magnetically actuated circuit makers and breakersor work magnets and electromagnets with electrical connector plugs,sockets or other special type housings or casings are in this class.
Electrical systems or circuits which include the magneticallycontrolled switches or relays or work magnet and electromagnet structurescomprising the subject matter of this class, are excluded from thisclass. These systems or circuits are classified in the variouselectrical or art classes depending upon the type of electricalsystem or apparatus controlled.
This class also includes subcombinations of magnetically actuatedswitches and relays classified in this class and which are eitherclaimed as used in a magnetically actuated switch or relay or whichare by disclosure peculiar to such use.