218247 ⎘
Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by manual control without auxiliary power
Sub-classes:System and method for driving motor with frequency conversion mechanism
#2Waterborne vessel braking system and method
#3ELECTRONIC CIRCUIT FOR SAFELY CLOSING A MOTOR-DRIVEN DOOR OF A RAIL VEHICLE
#4Control system and control method for electrically operated device
#5Lubricant gun with external communication
#6Hand Worn Wireless Remote Controller For Motors
#7Battery powered, handheld lubrication gun with display
#8Battery powered, handheld lubrication gun with display
#9Power tool with a DC brush motor and with a second power source
#10Manually operated brushless direct current motor
#11Series resistor assembly for an electric motor, circuit arrangement comprising a series resistor assembly for operating an electric motor and use of said assembly
#12Multi-speed motor system combining at least a one speed electric motor, series resistor and power switches
#13Chair lift for boats