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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Individual
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Individual
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Application filed by IndividualfiledCriticalIndividual
Priority to ES1981258742UpriorityCriticalpatent/ES258742Y/en
Publication of ES258742UpublicationCriticalpatent/ES258742U/en
Application grantedgrantedCritical
Publication of ES258742YpublicationCriticalpatent/ES258742Y/en
A plug provided with an air intake valve, characterized essentially by the fact that it is provided on its internal face with an annular groove concentric with respect to the body of the cap, which communicates with the interior of the container to which the cap is applied in the position of closure, whose groove has, at least, a step that puts it in communication with the outside of the container, while in said groove rests a joint in the form of a circular crown pushed by a spring of adequate tension, which maintains the joint in the closed position of the groove, and which yields when the internal depression of the container originates in the closing joint a force that exceeds that produced by the spring in its working position. (Machine-translation by Google Translate, not legally binding)
ES1981258742U1981-06-021981-06-02
PLUG PROVIDED WITH AIR INTAKE VALVE
ExpiredES258742Y
(en)