Electricity: conductors and insulators – Conduits – cables or conductors – Single duct conduits
Patent
1997-08-18
1999-08-17
Reichard, Dean A.
Electricity: conductors and insulators
Conduits, cables or conductors
Single duct conduits
285 4, H02G 318
Patent
active
059396750
ABSTRACT:
A prefabricated junction box and lid for use in the floors, walls and ceilings of a building. The junction box has tubular projections extending from an exterior sidewall and sealed by removable knockouts. When a knockout is removed, an annular ring extends into an interior of the tubular projection so as to retain corrugated electrical conduit inserted therethrough. The junction box lid includes locking tabs aligned with each tubular projection which substantially improve the capacity of the box to retain electrical conduit. The annular ring and corresponding locking tab, in combination, are operative to engage against an outer surface of the corrugated electrical conduit so as to lock the conduit.
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