Safety interlock device

摘要: A defeatable safety interlock device for blocking radiation from an instrument when a portion of the protective housing therefor is removed or displaced. When defeated, it not possible to remove displace interlocked housing, nor replace that during such defeat. The includes shutter, locking pin and latch. shutter blocks upon activation controls position pin. latch secured displaceable slotted movable in restricted path, passage being controlled by seated ramp with raise lower relative path followed