Magnetic slug switch

Claim 1

A MAGNETIC SLUG SWITCH TO CONTROL THE FLOW OF ELECTRICAL CURRENT BETWEEN AT LEAST TWO OF A PLURALITY OF DISTINCTLY SEPARATED ELECTRICAL LEADS, SAID MAGNETIC SLUG SWITCH COMPRISING: (A) A TUBULAR HOLLOW CASING HAVING A LONGITUDINAL CENTRAL AXIS, AN UPPER FIRST END AND A LOWER SECOND END BOTH ENDS BEING TRANSVERSELY DISPOSED WITH RESPECT TO THE CASING LONGITUDINAL AXIS, SAID TUBULAR HOLLOW CASING TOGETHER WITH ITS LONGITUDINAL CENTRAL AXIS BEING SUBSTANTIALLY VERTICALLY DISPOSED, THE UPRIGHT LONGITUDINAL WALLS OF SAID TUBULAR CASING BEING PROVIDED OF A STRUCTURAL MATERIAL THAT IS OF LOW MAGNETIC PERMEABILITY; (B) A MAGNETIC SLUG DISPOSED INTERNALLY WITHIN SAID HOLLOW CASING, SAID MAGNETIC SLUG HAVING AN UPPER FIRST END LOCATED NEARER TO THE CASING UPPER FIRST END, SAID MAGNETIC SLUG HAVING A LOWER SECOND END LOCATED NEARER TO THE CASING LOWER SECOND END, SAID MAGNETIC SLUG HAVING A PERMANENTLY POSITIONED MAGNETIC NORTH POLE AT ONE END THEREOF AND A PERMANENTLY POSITIONED MAGNETIC SOUTH POLE AT THE OTHER END THEREOF, SAID MAGNETIC SLUG HAVING A MAGNETICALLY NEUTRAL TRANSVERSE MERIDIAN BETWEEN THE FIRST AND SECOND ENDS THEREOF, THE CROSS-SECTIONAL SIZE OF THE MAGNETIC SLUG BEING SLIGHTLY LESS THAN THE CROSS-SECTIONAL SIZE OF THE TUBULAR CASING HOLLOW INTERIOR WHEREBY THE MAGNETIC SLUG IS VERTICALLY SLIDABLY DISPOSED WITHIN THE TUBULAR CASING ALONG THE LONGITUDINAL CENTRAL AXIS THEREOF SO THAT THE SLUG UPPER FIRST END IS ALWAYS NEARER TO THE CASING UPPER FIRST END THAN IS THE SLUG LOWER SECOND END, SAID MAGNETIC SLUG HAVING TWO STATIONS WITHIN THE CASING INCLUDING A PRIMARY STATION AT THE LOWER EXTREMITY OF ITS LONGITUDINAL TRAVEL AND A SECOND STATION AT THE UPPER EXTREMITY OF ITS LONGITUDINAL TRAVEL, THE MAGNETIC SLUG BEING NORMALLY POSITIONED AT ITS LOWER PRIMARY STATION LOCATED NEARER TO THE LOWER SECOND END OF THE CASING THAN TO THE UPPER FIRST END OF THE CASING WHEN THE CASING IS SO VERTICALLY DISPOSED; A PLURALITY OF DISTINCTLY SEPARATED ELECTRICAL LEADS ATTACHED TO THE TUBULAR CASING, SAID ELECTRICAL LEADS HAVING TERMINAL ENDS WITHIN THE TUBULAR CASING BETWEEN THE UPPER FIRST END OF THE CASING AND THE UPPER FIRST END OF THE MAGNETIC SLUG; THE UPPER FIRST END OF SAID MAGNETIC SLUG HAVING A STRUCTURALLY CONTINUOUS ELECTRICAL CONDUCTOR PORTION ADAPTED TO SIMULTANEOUSLY ENGAGE AT LEAST TWO OF SAID DISTINCTLY SEPARATED ELECTRICAL LEADS