Abstract: A multitubular bag for electrodes of electric batteries, made of a one-piece double fabric (1a) establishing a plurality of parallel pipes (3) in its inside, the double fabric (1a) of bag (1) showing transversal high tenacity and high tensile strength multifilament yarns (4) laid in a direction transversal to the main development direction of pipes (2), and longitudinal high porosity yarns (5) obtained starting from synthetic fiber staple laid in longitudinal direction, that is laid in a direction parallel to the main developement direction of pipes (2).

Abstract: A method for manufacturing high capacitive multilayer conductive bars is described. It comprises at least two conductive elements (14,16), one capacitive element (12) between them, and further inner and/or outer dielectric elements (13,113,18,20). The electrical connection between the capacitive element (12) and the conductive element (14,16) is realized by a solder alloy material (30), preferably in the form of a soldering alloy material.The mechanical connection between the outer (18,20) respectively the inner dielectric elements (13,113) and the conductive elements (14,16) is established by a non-conductive bonding material (13',113',22,24). Mechanical as well as electrical connection is made in the same operation step. The multilayer conductive bar has a great reliability. It is used for power and/or signal distribution in electronics, for example printed circuits and other high density components.

Abstract: Multitube sheath or bag for enclosing the active material of positive plates in electric lead batteries. The bag comprises four discrete fabrics simultaneously made on a shuttleless loom. The fabrics are interconnected along parallel lines by means of one or more weft threads. Thereby, every side of each tube comprises a double wall formed by two different fabrics, of which the inner fabric has weft threads of glass yarn and warp threads of synthetic yarn, the number of weft threads being much larger than that of warp threads at a same length of the fabric involved. The two outer fabrics are essentially made of synthetic yarn.