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Priority to ES126778UpriorityCriticalpatent/ES126778Y/en
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Publication of ES126778YpublicationCriticalpatent/ES126778Y/en
Improved arrangement applicable to helical fans, specifically to fixed helical fans in air direction, according to which the direction of rotation of the impeller and the curvature of the blades are calculated so that in the direction of displacement of the air set in motion by the operation of the fan, the impeller is placed in front of the radial arms that relate the housing of the electric motor to the support ring and fixation of the assembly, throwing the propeller the air against these arms, instead of aspirating it through them. (Machine-translation by Google Translate, not legally binding)
ES126778U1966-12-161966-12-16
PERFECTED LAYOUT APPLICABLE TO HELICAL FANS.
ExpiredES126778Y
(en)
Improvements in the construction of axiles fans provided with two axiles opposite movements. (Machine-translation by Google Translate, not legally binding)