ES342349A1 - Improvements in the braking devices of automatic actuator elevator doors. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Improvements in the braking devices of automatic actuator elevator doors. (Machine-translation by Google Translate, not legally binding)
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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Metalurgica Vascongada SA MEDASA
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Metalurgica Vascongada SA MEDASA
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Application filed by Metalurgica Vascongada SA MEDASAfiledCriticalMetalurgica Vascongada SA MEDASA
Priority to ES342349ApriorityCriticalpatent/ES342349A1/en
Publication of ES342349A1publicationCriticalpatent/ES342349A1/en
Improvements in the braking devices of automatically operated elevator doors, of the type in which, once the power supply to the motor has been interrupted, this is stopped by means of an electromagnetic drive disk brake, characterized in that the use of an engine is provided three-phase alternating current with internal stator and external rotor, the speed of this, before the power supply cut, is reduced by the provision inside the casing and in the vicinity of said rotor, of a winding of direct current producer of parasitic currents that act as a brake on the outer rotor reducing its speed. (Machine-translation by Google Translate, not legally binding)
ES342349A1967-06-261967-06-26Improvements in the braking devices of automatic actuator elevator doors. (Machine-translation by Google Translate, not legally binding)
ExpiredES342349A1
(en)