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.)
B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
B66B11/04—Driving gear ; Details thereof, e.g. seals
B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
B66B11/0484—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with a clutch or a coupling system between several motors, e.g. switching different speeds, progressive starting, torque limitation, flywheel