Electricity: electrical systems and devices – Safety and protection of systems and devices – Load shunting by fault responsive means
Patent
1992-05-21
1993-06-29
Pellinen, A. D.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Load shunting by fault responsive means
361117, 361111, 361 91, H02B 126, H02H 104
Patent
active
052240096
ABSTRACT:
A duplex receptacle has a housing base with insulating wall elements to which a insulating circuit board supporting a surge suppressor circuit is fit. The surge suppressor can be preassembled and located as a compact unit in the housing with connective connections to each of the power conductors and ground. The device also has an insulated ground feature with each ground contact extending into housing base projections which have openings accommodating an isolated ground strap to which the internal ground contacts are joined. The features of the invention are well suited for shallow receptacles as may be fit within outlet boxes of a depth of no more than about 11/2 inches. In addition, a back insulating cover is provided that fits over the isolated ground strap and base projections. The back cover shields the ground strap. It also or alternatively provides an enclosed space of substantially equal depth as that of the base projections which accommodates a component of the surge suppressor circuit when the bottom wall of the housing base between the projections is provided with an aperture.
REFERENCES:
patent: 4583799 (1986-04-01), Wiley
patent: 4688135 (1987-08-01), Leopold
patent: 4912590 (1990-03-01), Misencik et al.
patent: 5146385 (1992-09-01), Misencik
Bryant Wiring Device Catalog BDB-1504, p. C-4, Jul. 1989.
'Hubbell Incorporated
Goodman Alfred N.
Jackson S.
Pellinen A. D.
Presson Jerry M.
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