Stock material or miscellaneous articles – Structurally defined web or sheet – Including grain – strips – or filamentary elements in...
Patent
1976-04-12
1977-09-27
Lesmes, George F.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including grain, strips, or filamentary elements in...
244123, 416224, 416230, 416241A, 428174, 428181, 428367, 428378, 428902, 428116, 156227, B32B 512
Patent
active
040512894
ABSTRACT:
An article such as a blade fabricated from a plurality of high-strength, reinforcing filaments embedded in a matrix material and characterized by a portion of the filaments oriented transverse to the blade longitudinal axis in a direction through the blade to enhance transverse shear strength. In one embodiment, a plurality of columnar filament cores are each wrapped with a filament sheet and bonded together laterally to form the blade primary structure. The orientation of the filaments within the sheet forms an angle with the core longitudinal axes such that at least a portion of the sheet filaments runs transverse to the blade from one aerodynamic surface to the other. In an alternative embodiment, a blade is formed of a plurality of bonded filament laminates accordian folded with the fold lines angled with respect to the longitudinal axes of the filaments, the distance between fold lines being equal to or greater than the blade thickness.
REFERENCES:
patent: 3321019 (1967-05-01), Dmitroff et al.
patent: 3528875 (1970-09-01), MacDonald et al.
patent: 3602608 (1971-08-01), Morley
patent: 3637325 (1972-01-01), Morley
patent: 3762835 (1973-10-01), Carlson et al.
patent: 3883267 (1975-05-01), Baudier et al.
General Electric Company
Lampe, Jr. Robert C.
Lawrence Derek P.
Lesmes George F.
Thibodeau P. J.
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