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Individual
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Individual
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Priority to ES1968143827UpriorityCriticalpatent/ES143827Y/en
Publication of ES143827UpublicationCriticalpatent/ES143827U/en
Application grantedgrantedCritical
Publication of ES143827YpublicationCriticalpatent/ES143827Y/en
Improved door closers consisting of a fixed, essentially cylindrical box, inside which a moving, rotating assembly is housed, driven by an articulated arm whose other end is applied to the door, and which, in the opening action thereof, rotates in a such sense that compresses a concentric inner torsion spring, which once the force that keeps the door open, causes the return of this to its closed position, which corresponds to the normal position of the loaded spring. (Machine-translation by Google Translate, not legally binding)
ES1968143827U1968-12-071968-12-07
PERFECTED DOOR CLOSERS.
ExpiredES143827Y
(en)