Pipes and tubular conduits – Flexible – Spirally wound material
Patent
1980-06-04
1982-04-27
Bryant, III, James E.
Pipes and tubular conduits
Flexible
Spirally wound material
138109, 138122, 138129, 138154, 174109, F16L 1116
Patent
active
043265618
ABSTRACT:
An electrical conduit formed of helical inner and outer channels having movably interlocked flanges, so that the channel convolutions separate on the outside of a bend of the conduit and come together on the inside of the bend.
REFERENCES:
patent: 367301 (1887-07-01), Knight
patent: 845051 (1907-02-01), Von Brockdorff
patent: 998827 (1911-07-01), Armstrong
patent: 2303281 (1942-11-01), Johnson
patent: 3459233 (1969-08-01), Webbe
Automation Industries, Inc.
Bryant III James E.
Carten Francis N.
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