Electricity: conductors and insulators – Conduits – cables or conductors – Single duct conduits
Patent
1980-05-15
1982-05-04
Askin, Laramie E.
Electricity: conductors and insulators
Conduits, cables or conductors
Single duct conduits
138131, 138139, 174 47, 174 65R, 174 78, H02G 304, F16L 1110, F16L 1112
Patent
active
043283926
ABSTRACT:
An electrical conduit formed of helically fabricated grounding and reinforcing elements, including a foil channel having overlapped turns welded to one another and to a supporting helix.
REFERENCES:
patent: 3006664 (1961-10-01), Appleton et al.
patent: 3239400 (1966-03-01), Anselm
Askin Laramie E.
Automation Industries, Inc.
Carten Francis N.
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