Electrode structure for an electric circuit interrupter

Claim 1

AN ELECTRIC CIRCUIT INTERRUPTER COMPRISING: (A) A FIRST CONTACT AND A SECOND CONTACT MOVABLE INTO AND OUT OF ENGAGEMENT WITH SAID FIRST CONTACT, (B) A FIRST ANNULAR ARC RUNNER SURROUNDING SAID FIRST CONTACT AND ELECTRICALLY CONNECTED THERETO, (C) SAID SECOND CONTACT BEING OF A CUP-SHAPED CONFIGURATION AND COMPRISING A BASE THAT IS ENGAGEABLE WITH SAID FIRST CONTACT AND A TUBULAR WALL THAT EXTENDS FROM SAID BASE IN A DIRECTION AWAY FROM THE LOCATION OF SAID FIRST CONTACT, MOVEMENT OF SAID SECOND CONTACT OUT OF ENGAGEMENT WITH SAID FIRST CONTACT INITIATING AN ARC BETWEEN SAID CONTACTS HAVING ONE TERMINAL ON SAID BASE OF SAID SECOND CONTACT, (D) A SECOND ANNULAR ARC RUNNER SURROUNDING SAID SECOND CONTACT, ELECTRICALLY CONNECTED THERETO, AND PHYSICALLY SPACED THEREFROM BY A CLEARANCE SPACE SURROUNDING THE OUTER PERIPHERY OF SAID TUBULAR WALL, (E) MEANS FOR MOUNTING SAID ANNULAR ARC RUNNERS IN GENERALLY ALIGNED RELATIONSHIP, WITH AN ARCING GAP THEREBETWEEN, (F) SAID SECOND CONTACT BEING TELESCOPICALLY MOVABLE RELATIVE TO SAID SECOND ARC RUNNER ALONG A PATH EXTENDING ACROSS SAID ARCING GAP, (G) AND ARC-TRANSFER MEANS FOR FORCING SAID ONE TERMINAL OF ARCS INITIATED ON SAID BASE TO MOVE ALONG THE OUTER SURFACE OF SAID TUBULAR WALL ACROSS SAID CLEARANCE SPACE ON TO SAID SECOND ARC RUNNER, (H) SAID ARC-TRANSFER MEANS COMPRISING MEANS FOR FORCING SUBSTANTIALLY ALL CURRENT FLOWING THROUGH SAID CUP-SHAPED CONTACT TO ARC TERMINAL ON SAID TUBULAR WALL TO FOLLOW A PATH THAT EXTENDS THROUGH SAID BASE, (I) AND MEANS FOR CARRYING CURRENT TO AND FROM AN ARC TERMINAL ON SAID SECOND ARC RUNNER VIA A PATH THAT BYPASSES SAID SECOND CONTACT.