Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Billeruds AB
Original Assignee
Billeruds AB
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Publication date
Application filed by Billeruds ABfiledCriticalBilleruds AB
Priority to ES0012690UpriorityCriticalpatent/ES12690Y/en
Publication of ES12690UpublicationCriticalpatent/ES12690U/en
Application grantedgrantedCritical
Publication of ES12690YpublicationCriticalpatent/ES12690Y/en
Valve bag, preferably in multiple-pleated paper bags, closed at both ends but having in a corner a valve for filling formed by the fold of said corner, in which a paper or analogous tube lying within the corner is held. bag after the bent valve, through which tube, the bag is filled and which, for the purpose of closing the valve, is folded into the bag, the upper wall of the tube being provided with a foldable insert, to give rigidity , of metal that is folded when the tube is bent and then retains the folded position to retain the tube in the bent position, characterized in that the insert for rigidity consists of a metallic or analogous wire preferably in a forwardly folded iron wire and back to form some few stems interconnected with folds and built and applied in such a way that the stems are directed essentially in the long direction tube tube. (Machine-translation by Google Translate, not legally binding)