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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ST Regis Paper Co
Original Assignee
ST Regis Paper Co
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Publication date
Priority claimed from US285317Aexternal-prioritypatent/US3328220A/en
Priority claimed from US293005Aexternal-prioritypatent/US3221789A/en
Application filed by ST Regis Paper CofiledCriticalST Regis Paper Co
Publication of ES300551A1publicationCriticalpatent/ES300551A1/en
A method for sealing an end of a bag or bag tube that is formed of a thermoplastic resinous laminate comprising: (a) Flatten the tube of the bag or bag, (b) joining the edges of one end of the bag tube or flattened bag and cutting them in such a way as to leave them in the same position. (c) Holding the edges of the end that was cut in this way to certain conditions of heat and pressure so that they are joined and fused together, (d) Extending a molded thermoplastic resin enclosure strip that is compatible with the thermoplastic resin, of which the sheet or sheet is formed with which the pouch or tube of the pouch is formed with said strip having a sectional cut in shape of U, of such dimensions that it wraps the molten edges of the tube of the bag or bag and overlaps the outer surfaces of the tube end of the bag or bag in such a way that the strip extends, by leaving the opening of the stretch mold under pressure stretch before it comes into contact with, and wraps around, the molten edges of the bag or bag tube, and its original U-shaped sectional cut remains in decreasing shape, (e) Continuing the application of the closing band and wrapping the molten edges of the tube (ie the bag or bag with the strip extended in this way until the entire edge of the bag or bag tube is completely enclosed with the closing strip , Y (f) Shaping and cooling the closing strip until it acquires an elliptical sectional cut. (Machine-translation by Google Translate, not legally binding)
ES300551A1963-06-041964-07-03A procedure to close an end of a tubular sack (Machine-translation by Google Translate, not legally binding)
ExpiredES300551A1
(en)
A method to produce a package comprising a number of interconnected portions of wrapped cheese. (Machine-translation by Google Translate, not legally binding)
A procedure, with its device, to weld the frontal stitches of superposed layers of thermoplastic material (Machine-translation by Google Translate, not legally binding)
Improvements in the manufacture of bags of plastic material equipped with double filling valve (Machine-translation by Google Translate, not legally binding)