F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
F16K31/05—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
Dispositif destine a bloquer le tube d'enroulement d'un volet roulant mu par un moteur electrique dont l'arret est obtenu, au moins dans le sens de l'ouverture, par un obstacle a sa rotation