(under subclass 152) Subject matter including details of the structure or arrangement of parts that actuate the main contact assembly of the polyphase arc preventing or extinguishing devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
7, for multiple break circuit interrupter with operating mechanism.
14, for auxiliary shunt circuit interrupter with operating mechanism.
78, for sealed chamber circuit interrupter with operating mechanism.
84, for air-current blowout circuit interrupter with operating mechanism.
92, for liquid circuit interrupter with operating mechanism.
120, for polyphase vacuum circuit interrupter with operating mechanism. 140, for vacuum circuit interrupter with operating
mechanism.
154, for general arc preventing device with operating mechanism.
