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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Purolator Products Inc
Original Assignee
Purolator Products Inc
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Filing date
Publication date
Application filed by Purolator Products IncfiledCriticalPurolator Products Inc
Priority to ES0242463ApriorityCriticalpatent/ES242463A3/en
Publication of ES242463A3publicationCriticalpatent/ES242463A3/en
A method of manufacturing a filter element, method comprising the steps of: folding an elongated band of filter paper transversely with respect to its length, applying an adhesive material to the ends of the pleats, winding the band in the form of a composite ring of a single layer of folded paper and with its axis parallel to the line of folds, apply solvent material to the adhesive material at the ends of the ring and cover the ends of the folded assembly with ring caps that are adhered to the ends of the ring. (Machine-translation by Google Translate, not legally binding)
ES0242463A1958-06-141958-06-14A method of manufacturing a filter element (Machine-translation by Google Translate, not legally binding)
ExpiredES242463A3
(en)
Improvements in the construction of tube stretching machines for material bands of several layers of paper or similar (Machine-translation by Google Translate, not legally binding)
Machine for the preparation of thermoplastic bands intended for the manufacture of bags. (Machine-translation by Google Translate, not legally binding)