System for determining the torque required to loosen a threaded cap

摘要

A system for use in determining the torque required to loosen a threaded cap on a container, which container is held in a fixed position while a constant downward force is being placed on the threaded cap, by applying a gradually increasing electrical force to an electric motor tending to turn the electric motor so as to apply a torque on the threaded cap and using a torque sensor to measure the torque being applied by the electric motor on the threaded cap and recording the peak torque that was applied during the complete loosening of said threaded cap.