Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Patent
1997-10-23
1999-11-23
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Automatic circuit-interrupting devices
335202, H01H 7300
Patent
active
059907690
ABSTRACT:
A switchable adaptor for receptacles includes a manually settable switch that may be manually tripped or tripped by a solenoid in response to a signal. The switch is readily converted to be normally ON or normally OFF, and to be unipolar or multipolar. The adaptor may conveniently be in the form of a power bar or a power block, and will normally include a circuit board which may incorporate a circuit suitable for generating a signal responsive to a predetermined input condition.
REFERENCES:
patent: 4595894 (1986-06-01), Doyle et al.
patent: 4719437 (1988-01-01), Yun
patent: 4816957 (1989-03-01), Irwin
patent: 5644464 (1997-07-01), Zhou
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