Circuit breaker trip device

Claim 1

AN ELECTRIC CIRCUIT BREAKER COMPRISING: (A) A GNERALLY RECTANGULAR INSULATING MAIN CASING; (B) AT LEAST TWO SEPARABLE CONTACTS; (C) OPERATING MECHANISM FOR MOVING SAID CONTACTS BETWEEN OPEN AND CLOSED CIRCUIT POSITIONS; (D) SAID OPERATING MECHANISM INCLUDING A PRIMARY RELEASABLE MEMBER MOVABLE WHEN RELEASXED TO CAUSE AUTOMATIC OPENING OF SAID CONTACTS; (E) A PRIMARY LATCH MEMBER NORMALLY ENGAGING AND RESTRAINING SAID PRIMARY RELEASABLE MEMBER; (F) A REMOVABLE TRIP UNIT COMPRISING AN INSULATING CASING MOUNTED IN SAID MAIN CASING; (G) AT LEAST ONE ELECTROMAGNET MOUNTED IN SAID TRIP UNIT CASING; (H) MEANS FOR ENERGIZING SAID ELECTROMAGNET IN RESPONSE TO CURRENT FLOWING THROUGH SAID SEPARABLE CONTACTS; (I) A MAGNETIC ARMATURE DISPOSED AND ARRANGED TO BE ATTRACTED TO SAID ELECTROMAGNETIC UPON THE OCCURRENCE OF PREDETERMINED CURRENT ENERGIZATION OF SAID ELECTROMAGNET; (J) A RELEASING MEMBER SLIDABLY MOUNTED ON SAID TRIP UNIT CASING AND INCLUDING A HOOK PORTION DISPOSED AND ARRANGED TO ENGAGE SAID PRIMARY LATCH MEMBER; (K) CONNECTING MEANS COPNNECTING SAID ARMATURE MEMBER TO SAID RELEASING MEMBER WHEREBY MOVEMENT OF SAID ARMATURE TO ATTRACTED POSITION POSITIVELY MOVES SAID PRIMARY LATCH MEMBER TO RELEASING POSITION.