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
B65D90/00—Component parts, details or accessories for large containers
B65D90/54—Gates or closures
B65D90/62—Gates or closures having closure members movable out of the plane of the opening
B65D90/623—Gates or closures having closure members movable out of the plane of the opening having a rotational motion