Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Patent
1988-10-20
1992-04-28
Williams, Howard L.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Ground fault protection
307118, 307326, 361 45, H02H 316
Patent
active
051093154
ABSTRACT:
A safety device for minimizing electrical shock to a user is taught. Briefly stated, a ground plane is disposed inside an electrical tool or device. Should the device become immersed in water or become unreasonably wet, the plane provides a path of electrical current, which energizes an interrupt device contained therein. The interrupt device disconnects power from the device. Further, reset can only be accomplish by a special purpose tool being urged through an aperture in the device case.
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Plevy Arthur L.
Williams Howard L.
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