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 ES0040007UpriorityCriticalpatent/ES40007Y/en
Publication of ES40007UpublicationCriticalpatent/ES40007U/en
Application grantedgrantedCritical
Publication of ES40007YpublicationCriticalpatent/ES40007Y/en
Pneumatic plug, characterized essentially by the fact of being constituted by two pieces, one of material substantially elastic and, preferably, of plastic material, constitutive of the pneumatic chamber, open only by its upper part or mouth, the outer walls of which form a wallet, while the inner walls house therein the occluding part of rigid material, preferably plastic, conveniently attached to the elastic piece and provided with a hole optionally sealed with material that allows the introduction of suitable means to optionally increase the inner pressure of the pneumatic chamber and achieve the subsequent emptying, by letting out the air contained therein to facilitate the removal of the aforementioned cap. (Machine-translation by Google Translate, not legally binding)
ES0040007U1954-01-191954-01-19
A pneumatic cap
ExpiredES40007Y
(en)