Level controlled pumping systems and switch assemblies therefor

Claim 1

A CONTROL SYSTEM FOR PUMPS ADAPTED TO BE SUBMERGED IN A BODY OF LIQUID INCLUDING PUMPING MEANS AND CONDUIT MEANS LEADING THEREFROM TO A POSITION UPWARDLY THEREOF, POWER ACTUATING MEANS FOR SAID PUMPING MEANS AND OPERATIVELY ASSOCIATED THEREWITH, AND A SWITCH ASSEMBLY FORMED AND ADAPTED TO CAUSE ACTUATION OF SAID POWER MEANS, SAID SWITCH ASSEMBLY INCLUDING A TUBULAR BODY POSITIONED AT THE GENERAL LEVEL OF THE INTAKE OF SAID PUMPING MEANS AND A SWITCH ENCASED WITHIN AN INSULATING BODY, SAID INSULATING BODY BEING POSITIONED WITHIN SAID TUBULAR MEMBER, SAID SWITCH BEING CONNECTED TO SAID ACTUATING MEANS, SAID SWITCH HAVING A DOWNWARDLY DISPOSED ACTUATING MEMBER, SAID TUBULAR BODY HAVING AN INTERIOR OPEN ENDED TUBULAR BODY DISPOSED THEREWITHIN, SAID INTERIOR TUBULAR BODY HAVING CLOSED UPPER END DISPOSED ADJACENT SAID SWITCH ACTUATING MEMBER AND HAVING AN OPEN END AT THE LOWER END OF SAID TUBULAR BODY WHEREBY LIQUID MAY ENTER SAID INNER TUBULAR MEMBER, SAID INNER TUBULAR MEMBER HAVING FLEXIBLE PORTIONS ADAPTED TO FLEX WITH THE MOVEMENT OF A BODY OF LIQUID THEREWITHIN SO AS TO MOVE AGAINST SAID SWITCH ACTUATING MEMBER AND CAUSE ACTUATION OF SAID POWER MEANS IN ACCORDANCE WITH THE LIQUID CONDITION WITHIN SAID INNER TUBULAR MEMBER, AND AT THE GENERAL LEVEL OF SAID PUMP INTAKE.