Underground cable duct components and method of installing multi

Details Underground cable duct components and method of installing multi Underground cable duct components and method of installing multi

1985-09-20

1988-05-17

Corbin, David H.

Hydraulic and earth engineering

Subterranean or submarine pipe or cable laying, retrieving,...

174 37, 174 87, 285176, 285179, F16L 102, H02G 900

Patent

active

047446951

ABSTRACT:
Disclosed is a kit of curvilinear duct components and a method of utilizing the same to provide an improved mode of simultaneously installing and protecting multiple electrical cables in underground duct installations. The components include tubular elbow members, a major portion of at least some of which are of D-shape in cross section and having a major internal width at least as great as the combined diameters of multiple cables to safeguard against cable jamming during installation and which portion converges at one end to a circular shape matable with adjacent linear ducting. The curvilinear components are formed of impervious, electrically nonconductive, abrasion resistant material, such as polymer, concrete or glass filled thermosetting plastic.

REFERENCES:
patent: 1901897 (1933-03-01), Clayton
patent: 2056782 (1936-10-01), Fosdick
patent: 2506064 (1950-05-01), Christie
patent: 3390225 (1968-06-01), Couch et al.
patent: 3552780 (1971-01-01), Warren
patent: 3792187 (1974-02-01), Depcrymski

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