Mcdonnell Douglas Corporation

Brochier & Fils

Compagnie Europeene D'accumulateurs

Dominique Micheaux

Raymond J Palmer

Jean Bouix

Gerard Dalibard

Jean-Claude Viala

M'hamed El Morabit

A grid (10) for the plate of an electrical storage cell, eg. a lead-acid accumulator, comprises two orthogonal sets of conductive bars (7, 8) together with a current collector tab (9). The grid is made from a loosely-woven cloth comprising both bundles of conductive threads outlining the bars and the current collector of the plate, and bundles of non-conductive threads (6) serving to position said conductive threads relative to one another and to maintain them in position. Said bundles of conductive threads are embedded in a metal matrix comprising at least one of the metals in the group constituted by: lead, copper, cadmium, and nickel.

Fiber reinforced grid for a storage cell, and method of manufacturing it

Individual plies of woven cloth having different fiber orientation patterns are prelocated with respect to each other and by continuous means, such plies are arranged into a stacked package and sewn together to secure the plies in a predetermined position with respect to each other.

Woven layered cloth reinforcement for structural components

Three-dimensional non-crimp integral woven reinforcement for structural components formed as an integral woven assembly of warp and fill fibers, e.g. graphite fibers, in a multiplicity of layers, with light weight tie yarn, e.g. of fiberglass, passing from one side of the layered system to the other. Woven reinforcement forms of various shapes such as an I-beam can be produced by using a specified percentage of 0.degree. (warp) fibers and 90.degree. (fill) fibers, e.g. of graphite, to form a plurality of layers comprising the web and flanges of the I-beam reinforcement, and having the desired number of layers and thickness in both the web and flanges, and passing tie yarn, e.g. of fiberglass, back and forth from one side of the web to the other, and in the same manner from one side of the flanges to the other, and extending lengthwise in the warp direction of the material. The woven assembly is then impregnated with resin, e.g. 'B' stage epoxy resin, located on a suitable mold, and heated and cured in the conventional manner.

Integral woven reinforcement for structural components

Complex woven material as reinforcement for forming layered resin impregnated articles which are resistant to catastrophic damage from shock or local impact as from a hard object, comprised of woven bands or strips of high modulus fibers such as carbon or graphite fibers, separated in at least one direction of the material, from each other by woven bands or strips of low modulus fibers such as glass fibers, and which in a preferred embodiment are narrower than the strips of high modulus fibers. Superimposed layers of such materials can be formed, wherein the strips of high modulus fibers and low modulus fibers in the respective layers are at different angles. Such woven materials, e.g. in the form of a layered assembly, are impregnated with a suitable thermosetting resin such as an epoxy resin, and cured, to produce a layered resin impregnated article having improved damage tolerant physical and mechanical properties.

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Villette d'Anthon, France

Dominique Micheaux