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Individual
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Individual
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Priority to ES84898UpriorityCriticalpatent/ES84898Y/en
Publication of ES84898UpublicationCriticalpatent/ES84898U/en
Application grantedgrantedCritical
Publication of ES84898YpublicationCriticalpatent/ES84898Y/en
Improved stopper for tubes, essentially characterized by comprising a circular plate, from whose periphery part a vertical cylindrical wall suitable for externally clamping the mouth of the tube and concentric thereto a second cylindrical wall of smaller diameter suitable for tightening the tube by its mouth on the inside, the tube being operatively disposed between the two walls, and the cylindrical wall comprising smaller diameter on its inner face vertical V-races, so that the semi-flexible qualities of the plug material yield this wall decreasing its diameter according to the diameter or thickness of the tube walls. (Machine-translation by Google Translate, not legally binding)
ES84898U1960-12-261960-12-26
Improved tube cap
ExpiredES84898Y
(en)