Submergence-responsive switching member driving circuit

Details Submergence-responsive switching member driving circuit Submergence-responsive switching member driving circuit

2005-08-09

2005-08-09

Jackson, Stephen W. (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Circuit interruption by thermal sensing

C307S010100

Reexamination Certificate

active

06927962

ABSTRACT:
A submergence-responsive switching member driving circuit includes: a driving unit for driving a switching member of a vehicle so as to open or close it by means of a driving current that flows through between two current input-output ends; a first power terminal for supplying the driving current; relays having exciting coils and switching contacts Sw1, SW2, which, so long as a control current flows through the exciting coil, connect each of the current input-output ends to the first power terminal respectively by means of the switching contacts, and further there are provided power breaking means for breaking, when submerged in water, supply of the control current to the first exciting coil of the first relay.

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patent: HEI 11-125063 (1999-05-01), None

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