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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Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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Filing date
Publication date
Application filed by Shell Internationale Research Maatschappij BVfiledCriticalShell Internationale Research Maatschappij BV
Priority to ES0328047ApriorityCriticalpatent/ES328047A3/en
Publication of ES328047A3publicationCriticalpatent/ES328047A3/en
A method of closing an opening of a plastic container, comprising the steps of raising the opening by means of a plastic lid that is wider than the opening, exerting pressure on the lid and causing rotation of the lid in relation to the container in such a way that the heat of friction developed on the contact surfaces between the lid and the container causes some fusion of the material of said contact surfaces, stop the rotation and maintain the pressure on the lid until the molten material has hardened . (Machine-translation by Google Translate, not legally binding)
ES0328047A1966-08-171966-08-17A method of closing an opening of a plastic container. (Machine-translation by Google Translate, not legally binding)
ExpiredES328047A3
(en)
An apparatus box, with a window of transparent material inserted into an opening of the box. (Machine-translation by Google Translate, not legally binding)