B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
B65D88/00—Large containers
B65D88/54—Large containers characterised by means facilitating filling or emptying
Reservoir a double parois pour produits en vrac a l'etat liquide ou pulverulent comportant une paroi souple etanche retractable permettant ainsi l'utilisation successivement du meme reservoir pour des produits non compatibles