Abstract: A system and method of detecting air vortexing and coriolis effect vortex-created cavitation in a shutdown cooling system drain pump of a nuclear power plant during midloop operation where the plant includes a horizontal hot leg having a drain pipe connected from the lower region thereof to a drain pump which includes attaching transducers of a portable clamp-on ultrasonic flowmeter to the drain pipe to measure and detect flow-void-created disruptions in the flowmeter ultrasonic signal and providing a remote alarm triggered by the disrupted signal.

Abstract: Disclosed herein is a snap-lock device for securing and pivotally supporting a hammer or other similar tool from the user's waist belt. The device is comprised of a pad support which is suspended from the waist belt, an open ended tool support which is pivotally mounted on the pad for carrying the tool and a pair of spring biased tool retention gates which are mounted on the open ends of the tool support loop for rapid lateral entry of the tool into the tool support loop and securement of the tool therein.