Electricity: conductors and insulators – Conduits – cables or conductors – Buoyant
Patent
1982-06-21
1986-07-22
Askin, Laramie E.
Electricity: conductors and insulators
Conduits, cables or conductors
Buoyant
52287, 138157, 174 72C, H02G 304, H02G 306
Patent
active
046021248
ABSTRACT:
A ducting system for electrical wiring or the like including elongated channels and channel covers and prefabricated channel interface assemblies adapted for rapid non-defacing installation without resort to special tools or precision assembly techniques. The interface assemblies are comprised of alignment members which are adapted to engage two or more channels thereby to automatically position the channels in a predetermined relationship. More specifically, projections are provided on the alignment members which are received within recesses on the ends of the duct channels thereby functioning to properly and automatically orient the several duct channels upon system assembly. The interface assemblies further include removable cover means which bridge and conceal the respective ends of the channels and channel covers thereby eliminating precision cutting of the duct sections.
REFERENCES:
patent: 686052 (1901-11-01), Golding
patent: 1981742 (1934-11-01), Murphy
patent: 3171702 (1965-03-01), Schumacher et al.
patent: 3697667 (1972-10-01), Pollak et al.
patent: 4391426 (1983-07-01), Gothberg
"La-in" Catalog and Handbook, published by National Electric Products Corporation, Pittsburgh, PA, 1938, pp. 25, 26, 31, 32 and 34.
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