ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,806, issued on Feb. 10, was assigned to HITACHI LTD. (Tokyo).
"Stretch detection system for power transmission mechanism" was invented by Akihiro Nakamura (Tokyo), Takahiro Yamada (Tokyo) and Daisuke Yamazaki (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A stretch detection system of a power transmission mechanism is connectable to a conveyor system including a motor, a rotation mechanism driven by the motor, and the power transmission mechanism driven by rotation of the rotation mechanism. The stretch detection system converts a signal of a current of the motor into a frequency domain signal, and calculates an integral value by performing i...