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 d'accouplement en rotation de grande precision et dispositif de commande en translation le comportant, notamment pour instrument optique spatial.
Dispositif de fixation d'un échangeur de chaleur secondaire du type à serpentin sur un échangeur de chaleur principal et ensemble d'échangeurs ainsi obtenu