nondestructive barrieresack or layer for a serving containers with a narrow neck and method for filling such a papiersackes or of such a layer by a siphonrohr

摘要

A dispensing container (1) including an interior barrier bag (9) is disclosed, along with a method for filling the barrier bag (9) with a material to be dispensed. The dispensing structure includes a non-vented pump (13) and a syphon tube structure (6), and a mechanism for venting the interior of the container to the atmosphere (10) and for venting the interior of the barrier bag during filling (14). During assembly and filling, the barrier bag is wrapped or collapsed around the syphon tube structure (6), so that the syphon tube structure (6) and the barrier bag (9) can be easily inserted into a conventional container. After insertion, the barrier bag (9) is inflated (with either an air blast or the introduction of the dispensed product) and filled with product. After filling a pump structure (13) can be attached to the container. The method and apparatus allow a barrier bag device to be used on conventionally-designed container structures. The method and apparatus are particularly useful with containers which are made up at least partially of recycled materials. The apparatus is particularly useful for highly viscous products. The container (1) has a vented syphon tube structre (109) which is inserted into the container before it is filled. Filling is accomplished by inserting a filling nozzle (12) into the container (1) so that it cooperates with the top of the syphon tube (116). Filling of the container (1) therefore occurs through the syphon tube. The vent in the syphon tube structure allows the air in the container (1) to be vented as the container (1) is filled. Because the container is filled through the syphon tube, the product (105) completely fills the syphon tube at the time when the pump structure is inserted into the container. The vent structure (111) can be used as a vent for the container (1) during a dispensing operation as well. IMAGE