Pipes and tubular conduits – Plural duct – Longitudinally extending common wall
Patent
1982-08-06
1988-03-08
Bryant, III, James E.
Pipes and tubular conduits
Plural duct
Longitudinally extending common wall
174 68C, 174195, F16L 918
Patent
active
047294094
ABSTRACT:
An underground electrical conduit hexagonal in cross-section and having internal partition walls subdividing the conduit into a plurality of longitudinal ducts. The internal partition walls are symmetrically disposed about a central longitudinal axis of the conduit and serve as bracing structure to strengthen and support the outer walls of the conduit.
REFERENCES:
patent: 417992 (1889-12-01), Dell
patent: 764779 (1904-07-01), Stone
patent: 3941157 (1976-03-01), Barnett
Borg-Warner Corporation
Bryant III James E.
Schlott Richard J.
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