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 ES1979242307UpriorityCriticalpatent/ES242307Y/en
Publication of ES242307UpublicationCriticalpatent/ES242307U/en
Application grantedgrantedCritical
Publication of ES242307YpublicationCriticalpatent/ES242307Y/en
Improved security bolt, of the type comprising a shaft operable in rotation through the inner knob of the door and on whose shaft is fixed a gear that meshes in a serrated edge of the bolt itself to which it prints longitudinal movement towards its positions closing or opening, essentially characterized in that on the said shaft a second gear wheel is fixed which in turn engages in the serrated edge of a plate to which it prints longitudinal movement simultaneous to that of the bolt, so that when it is in closing operative position, a certain portion of said plate is confronted with a window-viewer located on the outside of the door, said portion of the plate bearing an indication of prohibition. (Machine-translation by Google Translate, not legally binding)