Protectors for electric circuits

Claim 1

AN ENCLOSED ELECTRIC FUSE THAT COMPRISES A HOLLOW CYLINDRICAL HOUSING, AN INWARDLY-DIRECTED ANNULAR FLANGE ADJACENT ONE END OF SAID HOUSING, SAID INWARDLY-DIRECTED ANNULAR FLANGE DEFINING AN OPENING AT SAID ONE END OF SAID HOUSING WHICH HAS A DIAMETER THAT IS SMALLER THAN THE INNER DIAMETER OF SAID HOUSING, A DISC OF TRANSPARENT MATERIAL TELESCOPED WITHIN SAID HOUSING, SAID DISC ABUTTING THE INNER FACE OF SAID INWARDLY-DIRECTED ANNULAR FLANGE AND CONSTITUTING A WINDOW, SAID INWARDLY-DIRECTED ANNULAR FLANGE OVERLYING THE OUTER PORTIONS OF THE OUTER FACE OF SAID DISC AND THEREBY PREVENTING EXPULSION OF SAID DISC THROUGH SAID ONE END OF SAID HOUSING, THE PERIPHERY OF SAID DISC SNUGLY ENGAGING THE INTERIOR OF SAID HOUSING TO HOLD ITSELF AGAINST MOVEMENT RELATIVE TO SAID HOUSING, A SECOND DISC, SAID SECOND DISC BEING ELECTRICALLY NON-CONDUCTIVE, SAID SECOND DISC BEING TELESCOPED WITHIN SAID HOUSING, AN OPENING IN SAID SECOND DISC ADJACENT TO BUT SPACED INWARDLY FROM THE PERIPHERY OF SAID SECOND DISC, AN ELECTRICALLY CONDUCTIVE TERMINAL DISPOSED WITHIN SAID OPENING IN SAID SECOND DISC AND PROJECTING ABOVE AND BELOW THE UPPER AND LOWER FACES OF SAID SECOND DISC, A SECOND OPENING IN SAID SECOND DISC ADJACENT TO BUT SPACED INWARDLY FROM THE PERIPHERY OF SAID SECOND DISC, SAID OPENINGS IN SAID SECOND DISC BEING ON A DIAMETER OF SAID DISC, A SECOND ELECTRICALLY CONDUCTIVE TERMINAL DISPOSED WITHIN SAID SECOND OPENING IN SAID SECOND DISC AND PROJECTING ABOVE AND BELOW THE UPPER AND LOWER FACES OF SAID SECOND DISC, SAID TERMINALS BEING FIXEDLY SECURED TO SAID SECOND DISC AND HAVING THE UPPER ENDS THEREOF SPACED THE SAME DISTANCES FROM SAID UPPER FACE OF SAID SECOND DISC, SAID TERMINALS HAVING THE LOWER ENDS THEREOF SPACED THE SAME DISTANCES FROM SAID LOWER FACE OF SAID SECOND DISC, A FUSIBLE CONDUCTOR THAT IS ELECTRICALLY CONNECTED TO SAID UPPER ENDS OF SAID TERMINALS BY SOLDER, SAID FUSIBLE CONDUCTOR BEING DISPOSED BELOW THE LEVEL OF BUT BEING VISIBLE THROUGH SAID DISC OF TRANSPARENT MATERIAL, THE LOWER ENDS OF SAID TERMINALS SERVING AS PRONGS THAT CAN EXTEND INTO A SOCKET TO CONNECT SAID FUSIBLE CONDUCTOR INTO A CIRCUIT, AND AN INSULATING MATERIAL THAT ENGAGES SAID SECOND DISC AND SAID HOUSING AND THAT BONDS SAID SECOND DISC TO SAID HOUSING, SAID TERMINALS BEING ADJACENT BUT SPACED INWARDLY FROM THE INTERIOR OF SAID HOUSING WHENEVER SAID SECOND DISC IS TELESCOPED WITHIN SAID HOUSING, SAID UPPER ENDS OF SAID TERMINALS CONSTITUTING FIXED ARC HORNS THAT ARE SPACED APART A DISTANCE GREATER THAN ONE HALF THE INNER DIAMETER OF SAID HOUSING, WHEREBY ANY ARC THAT FORMS AS SAID FUSIBLE CONDUCTOR OPENS THE CIRCUIT WILL CLEAR, SAID TERMINALS BEING MASSIVE RELATIVE TO SAID FUSIBLE CONDUCTOR TO COOL ANY ARC THAT FORMS AS SAID FUSIBLE CONDUCTOR OPENS THE CIRCUIT, SAID TERMINALS BEING CIRCULAR IN CROSS SECTION AND SAID FUSIBLE CONDUCTOR EXTENDING TRANSVERSELY OF THE AXES OF SAID TERMINALS, WHEREBY SAID TERMINALS SERVE AS "SPHERICAL" ARC HORNS, SAID TERMINALS BEING PARALLEL TO THE AXIS OF SAID HOUSING WHENEVER SAID SECOND DISC IS DISPOSED WITHIN SAID HOUSING, SAID HOUSING HAVING A THIN WALL AND HAVING A PORTION OF THAT WALL OF EVEN LESS THICKNESS TO DEFINE AN ANNULAR SHOULDER AT THE INTERIOR OF SAID HOUSING SAID SHOULDER BEING FRUSTO CONICAL IN CONFIGURATION, SAID SHOULDER LIMITING THE EXTENT TO WHICH SAID SECOND DISC CAN BE TELESCOPED WITHIN SAID HOUSING, SAID SHOULDER CENTERING SAID SECOND DISC AS SAID SECOND DISC IS TELESCOPED WITHIN SAID HOUSING, SAID HOUSING AND SAID DISC OF TRANSPARENT MATERIAL AND SAID SECOND DISC CONSTITUTING A UNITARY ENCLOSURE FOR SAID FUSIBLE CONDUCTOR.