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B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
B65B31/046—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles co-operating, or being combined, with a device for opening or closing the container or wrapper
B65B31/047—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles co-operating, or being combined, with a device for opening or closing the container or wrapper the nozzles co-operating with a check valve in the opening of the container or wrapper
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FR537708D1921-06-301921-06-30Appareil à conservation de denrées alimentaires et tous produits putrescibles ou destructibles par l'influence de l'air
ExpiredFR537708A
(fr)
Procédé réalisant un perfectionnement des véhicules et chambres frigorifiques destinés au transport et à la conservation des denrées ou matières périssables