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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Construccion de Aparatos Mecanicos SA
Original Assignee
Construccion de Aparatos Mecanicos SA
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Filing date
Publication date
Application filed by Construccion de Aparatos Mecanicos SAfiledCriticalConstruccion de Aparatos Mecanicos SA
Priority to ES0084619UpriorityCriticalpatent/ES84619Y/en
Publication of ES84619UpublicationCriticalpatent/ES84619U/en
Application grantedgrantedCritical
Publication of ES84619YpublicationCriticalpatent/ES84619Y/en
An improved screw, characterized in that it consists of a screw with prismatic head and cylindrical tang threaded with thread that presents in its lower end a slight and gradual narrowing in its straight section, topped in a flat and semicircular base; the other half of this same base being extended according to a frustoconical tip of semicircular base, split according to an axial plane, whose upper semibase is blunt; forming the profile of the lateral sharp edges of this point, a parabolic arch, to join with the lateral sharp edges of this same point. (Machine-translation by Google Translate, not legally binding)