Protective circuit for boats

Claim 1

A PROTECTIVE CIRCUIT FOR USE WITH POWER BOATS OF THE TYPE HAVING A BILGE COMPARTMENT AND AN ENGINE WHICH COMPRISES: A STARTING CIRCUIT WHICH INCLUDES AN ELECTRICAL SOURCE OF ENERGY AND A STARTER SWITCH FOR STARTING THE ENGINE OF THE POWER BOAT, SAID STARTER SWITCH CONNECTED TO SAID SOURCE IN SERIES RELATIONSHIP BY ELECTRICAL CIRCUIT MEANS, AN IGNITION CIRCUIT FOR SAID ENGINE INCLUDING AN IGNITION SWITCH, A TIME DELAY RELAY HAVING A PREDETERMINED TIME DELAY CYCLE, SAID TIME DELAY RELAY CONNECTED IN SERIES WITH SAID IGNITION SWITCH SO THAT UPON CLOSING THE IGNITION SWITCH THE RELAY WILL BECOME ENERGIZED AND COMMENCE THE DELAY CYCLE FOR MAINTAINING THE STARTING CIRCUIT IN AN OPENING CONDITION SO AS TO DELAY THE OPERATION TO THE ENGINE UNTIL THE TERMINATION OF SAID CYCLE, AND BLOWER FOR CLEARING THE BILGE OF ANY ACCUMMULATED FUEL VAPOR CONCENTRATION, SAID BLOWER HAVING A FIRST CIRCUIT CONTROLLED BY SAID TIME DELAY RELAY SO THAT THE BLOWER WILL OPERATE DURING THE DELAY CYCLE, A DETECTION CIRCUIT INCLUDING A GAS DETECTOR FOR SENSING GASEOUS FUEL VAPOR CONCENTRATION, A PUMP, AND MEANS RESPONSIVE TO SAID GAS DETECTOR DURING A PERIOD WHEN THE DETECTOR IS SENSING A DANGEROUS FUEL VAPOR CONCENTRATION FOR CASING THE BLOWER TO OPERATE THROUGH A SECOND BLOWER CIRCUIT, MAINTAINING SAID STARTING CIRCUIT IN AN OPEN CONDITION AND PREVENTING THE PUMP FROM OPERATING, AND SAID ELECTRICAL CIRCUIT MEANS CONNECTING SAID DETECTION AND IGNITION CIRCUITS TO SAID SOURCE.