"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
|7288906||Manually operated brushless direct current motor|
A manually operated brushless DC motor is disclosed herein, which is an educational electric motor and can overcome the shortcoming hard to visualize the movement of a motor due to the high-speed rotation of the motor. The manually operated brushless DC motor accord...
|7030580||Motor/generator transient response system|
A transient response system includes a power source operable to generate a power output and a transmission operatively coupled to the power source. The transient response system also includes a generator operatively coupled to the power source and a controller in co...
|4314146||Analog display device|
The analog display device comprises at least one needle driven through a gear wheel by a stepping motor, a control circuit for the motor, bidirectional counter locked with the position of the needle on a dial, the logic states of the outputs of the counte...