Static structures (e.g. – buildings) – Machine or implement
Patent
1986-05-22
1988-09-13
Murtagh, John E.
Static structures (e.g., buildings)
Machine or implement
523091, 52720, 174 45R, 43 185, E04C 330
Patent
active
047699671
ABSTRACT:
A cylindrical pole of plastic material having the primary function of supporting electric power transmission lines is reinforced by a filament-wound structure in which the filament density decreases progressively from the lower end to the upper end of the pole and has the effect of modifying the mechanical characteristics along the length of the pole.
REFERENCES:
patent: 453286 (1891-06-01), Lies
patent: 3813837 (1974-06-01), McClain et al.
Manufacture d'Appareillage Electrique de Cahors
Murtagh John E.
Rudy Andrew Joseph
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