74007703
Dec 4, 1989
Dec 25, 1990
ELECTRO-OPTICAL SENSORS AND CONTROL DEVICES AND CONDUCTORS FOR USE WITH SAME, ELECTRICAL CONDUCTORS, PENETRATIONS AND FEEDTHROUGH MODULES FOR PASSING AN ELECTRICAL CONDUCTOR THROUGH A WALL, SUCH AS A CONTAINMENT WALL OF A NUCLEAR REACTOR, THERMOCOUPLES AND TEMPERATURE SENSORS FOR CONVERTING TEMPERATURE INTO AN ELECTRICAL SIGNAL, AND ELECTRICALLY-OPERABLE VALVES AND ELECTRICALLY-OPERABLE RELEASE DEVICES, SUCH AS A RELEASE DEVICE FOR RELEASING A PARACHUTE FROM A HARNESS UPON CONTACT WITH WATER
Electrical and Scientific Apparatus