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GRAU COLOM JOSE LUIS
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GRAU COLOM JOSE LUIS
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Application filed by GRAU COLOM JOSE LUISfiledCriticalGRAU COLOM JOSE LUIS
Priority to ES0019694UpriorityCriticalpatent/ES19694Y/en
Publication of ES19694UpublicationCriticalpatent/ES19694U/en
Application grantedgrantedCritical
Publication of ES19694YpublicationCriticalpatent/ES19694Y/en
An expansive patella of automatic adjustment, characterized essentially by the fact that the sphere that constitutes the rotating element of the patella, is completely divided into two equal parts or hemispheres, with the particularity that each of these parts has been practiced, in radial direction, a conduit that occupies diametrically opposite positions, being lodged in said conduit the nexus element of union and, at the same time, expansive, consisting of a helical spring, whose ends rest on the bottoms of said conduits. (Machine-translation by Google Translate, not legally binding)