Magnetic switches

Claim 1

IN AN ELECTRICAL SWITCH, THE COMBINATION COMPRISING: A SUPPORTING HOUSING, SAID HOUSING COMPRISING A SEALED SWITCH CAVITY AND A RIGID WALL, SAID WALL COMPRISING A BODY PORTION OF NON-MAGNETIC MATERIAL WITH FOUR APERTURES THEREIN ARRANGED IN A GENERALLY QUANDRANGULAR CONFIGURATION AND AN INSERT OF MAGNETIC MATERIAL SEALED WITHIN EACH OF SAID APERTURES; A MAGNETIC ACTUATOR MOUNTED ON SAID HOUSING EXTERNALLY OF SAID CAVITY FOR MOVEMENT BETWEEN TWO SWITCHING POSITIONS, SAID ACTUATOR COMPRISING A PERMANENT MAGNET HAVING N AND S POLES, EACH OF SAID POLES HAVING A PAIR OF ACTUATING PORTIONS SAID ACTUATING PORTIONS ALIGNED SO THAT ONE ACTUATING PORTION OF EACH OF SAID POLES IS IN SUBSTANTIAL CONTACT WITH SAID WALL WHENEVER SAID ACTUATOR IS IN ONE OF SAID SWITCHING POSITIONS, EACH OF SAID ACTUATING PORTIONS ALIGNED WITH INE OF SAID INSERTS; AN AMATURE WITHIN SAID CAVITY SUPPORTED BY SAID HOUSING FOR PIVOTAL MOVEMENT BETWEEN TWO SWITCHING POSITIONS, SAID ARMATURE MAGNETICALLY ASSOCIATED WITH SAID ACTUATOR SO THAT SAID ARMATURE ASSUMES A PREDETERMINED ANGULAR POSITION FOR EACH OF SAID TWO SWITCH POSITIONS, SAID ARMATURE COMPRISING TWO SEPARATE BLOCKS OF MAGNETIC MATERIAL, A NON-MAGNETIC SUPPORTING MEANS FOR SAID BLOCKS, AND FIRST CONTACT MEANS MOUNTED THEREON; AND SECOND CONTACT MEANS WITHIN SAID CAVITYY SUPPORTED BY SAID HOUSING, WHEREBY ONE ACTUATING PORTION OF EACH OF SAID POLES OF SAID MAGNET, TWO OF SAID INSERTS, AND ONE OF SAID BLOCKS FROM A STRONG MAGNETIC CIRCUIT TO MAINTAIN OF SAID BETWEEN SAID FIRST AND SECOND CONTACT MEANS WHENEVER SAID ACTUATOR IS POSITIONED IN ONE OF SAID SWITCHING POSITIONS.