Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B65
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
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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
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83/00
Containers or packages with special means for dispensing contents
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B65D83/0005
Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
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B65D83/0011
moved by a screw-shaft
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B65D83/0016
the contents being forced out through the screw-shaft
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