Electricity: electrical systems and devices – Safety and protection of systems and devices – Motor protective condition responsive circuits
Patent
1982-11-17
1984-05-29
Eisenzopf, Reinhard J.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Motor protective condition responsive circuits
361 92, 361114, 361194, H02H 324, H02H 709
Patent
active
044518650
ABSTRACT:
This disclosure relates to methods and apparatus for providing in a tool, appliance, or other electrically operated device the safety feature of requiring that the trigger or ON-OFF switch be in or returned to the OFF position before the tool will respond to placing the trigger or ON-OFF switch in the ON position.
REFERENCES:
patent: 2985800 (1961-05-01), Cook
Laughon Thomas C.
Warner Richard C.
Bell Edward L.
Eisenzopf Reinhard J.
Schmidt Edward P.
Smith Robert E.
The Singer Company
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