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Priority to ES75577UpriorityCriticalpatent/ES75577Y/en
Publication of ES75577UpublicationCriticalpatent/ES75577U/en
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Publication of ES75577YpublicationCriticalpatent/ES75577Y/en
New closure for canning containers, characterized by being composed of a very thin laminar disk arranged in direct contact on the edge of the frustoconical mouth of the container and with the area of contact with said curved edge and adapted to its configuration, existing on this area a circular ring with a body thicker than the disc, also curved and adapted to the aforementioned edge, constituting a washer with a U-section, on which a second laminar disc with a thicker body than the first one is supported, although both have the same contour and diameter, also comprising a second washer in the form of a circular ring bent and bent under pressure on the repeated edge of the container, so that as this last washer of rigid material maintains its curved shape of inverted U-section and imprisons the different layers of the closure holding them against the edge of the container, resulting in a closure with two sealing discs that carry in A separating washer is stiffened which results in the formation of a sealing chamber between the two. (Machine-translation by Google Translate, not legally binding)
ES75577U1959-08-221959-08-22
Closure for glass canning containers
ExpiredES75577Y
(en)