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Individual
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Individual
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Priority to ES0004438UpriorityCriticalpatent/ES4438Y/en
Publication of ES4438UpublicationCriticalpatent/ES4438U/en
Application grantedgrantedCritical
Publication of ES4438YpublicationCriticalpatent/ES4438Y/en
Check valve for balloons and rubber bladders, characterized by being constituted by a tubular rubber part (6), fixed inside the bladder (2), to which it is applied by means of a base or fin (7) by means of of sticking or vulcanization, and provided at its inner end with a rather thick bottom, which, externally, has a conical shape and which is divided into two halves by means of a cut (8). (Machine-translation by Google Translate, not legally binding)
ES0004438U1936-01-131936-01-13
Check valve for balloons and rubber bladders
ExpiredES4438Y
(en)