Electricity: conductors and insulators – Combined fluid conduit and electrical conductor
Patent
1991-12-09
1994-02-08
Tolin, Gerald P.
Electricity: conductors and insulators
Combined fluid conduit and electrical conductor
138115, 138130, 138144, 138174, F16L 1112
Patent
active
052850080
ABSTRACT:
A composite tubular member having an outer cylindrical member containing fibers oriented to resist internal pressure while providing low bending stiffness, an inner smaller centrally located core member located near the neutral axis of the composite tubular member and containing fibers oriented to provide high axial stiffness, high tensile strength and low bending stiffness. One or more web members contain fibers oriented to resist shear stress, and connect the outer cylindrical member and the inner core member to form at least two separate cells within the composite tubular member. The web member forms a major and minor moment of inertia within the tubular member to create a preferred bending direction. Conductors are formed integral to the connecting web member for transmitting energy signals through the tubular member.
REFERENCES:
patent: 1976804 (1934-10-01), Ringel
patent: 4038489 (1977-07-01), Stenson et al.
patent: 4336415 (1982-06-01), Walling
patent: 4715443 (1987-12-01), Gidley
patent: 4859024 (1989-08-01), Rahman
patent: 5097870 (1992-03-01), Williams
Sas-Jaworsky Alex
Williams Jerry G.
Conoco Inc.
Holder John E.
Sough Hyung S.
Tolin Gerald P.
Westphal David W.
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