Electricity: conductors and insulators – Conduits – cables or conductors – Single duct conduits
Reexamination Certificate
2006-01-31
2006-01-31
Patel, Dhiru R. (Department: 2831)
Electricity: conductors and insulators
Conduits, cables or conductors
Single duct conduits
C174S064000, C174S135000, C174S050000, C220S003200
Reexamination Certificate
active
06992252
ABSTRACT:
A removable reducer bushing is carried in a threaded port of an outlet box for coupling with a small threaded conduit and electively removable for coupling with a large threaded conduit thereby permitting a single box to handle multiple conduit sizes without separately procured parts. The bushing includes a deformable thread interruption resisting bushing rotation during removal of the small threaded conduit and frontal slots for manual removal of the bushing with a screwdriver against the resistance of the thread interruption.
REFERENCES:
patent: 4151363 (1979-04-01), Nichols
Alilughatta Ashok Sathyanarayana
Rao C. Gireesh
Scheer David L.
Mills Law Firm PLLC
Patel Dhiru R.
Sigma Electric Manufacturing Corp.
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