Patent ID: 7950974
Filing Date: 2011-05-31
Classification: B63H

Abstract:
1. A device for cutting debris carried by water inducted into a jet stream that propels a watercraft, comprising: an intake duct; an outlet; an impeller for pumping water from the intake duct to the outlet as the impeller rotates about an axis, the impeller including a hub formed with an outer surface, multiple blades secured to the hub, each blade including a leading edge projecting outward from the outer surface and spaced angularly from the leading edge of the other blades; a baffle secured to the intake duct such that it does not move relative to the intake duct and including a cutting edge located adjacent and spaced from the leading edge of each blade when said leading edge rotates to the location of the cutting edge, the baffle including a second cutting edge facing the outer surface; and wherein the baffle includes a third cutting edge facing a surface of a drive shaft supported for rotation about the axis and driveably connected to the impeller.