Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1974-04-29
1976-06-08
Van Balen, William J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
156156, 156173, 156287, 244123, 244124, 416226, 416230, 428166, 428188, B32B 326
Patent
active
039625060
ABSTRACT:
A fiber-reinforced plastic article of manufacture having a multi-chambered, cellular structure with an outer shell having a fluid foil shape with a leading edge having a smooth radius of curvature and a trailing edge [noncircular]cross section over a substantial portion of its length and containing therein an inner shell which extends between at least two opposite interior walls of said outer shell thereby defining at least two chambers within said article, the walls of said shells being composed of a plastic having embedded therein at least on layer of a continuous roving of a fibrous reinforcement material, said at least one layer comprising two adjacent thicknesses of said roving with the rovings being in parallel alignment in each thickness and the rovings being in parallel alignment in each thickness and in diagonal orientation between thicknesses and with the rovings in the outer shell being continuous and unbroken over the leading edge of said foil shape.
REFERENCES:
patent: 2362301 (1944-11-01), Pecker
patent: 3028292 (1962-04-01), Hinds
patent: 3237697 (1966-03-01), Ford et al.
patent: 3713753 (1973-01-01), Brunsch
patent: 3754840 (1973-08-01), Zincone
Fiber Science, Inc.
Van Balen William J.
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