Patent ID: 7748965
Filing Date: 2010-07-06
Classification: F04D

Abstract:
1. A pump for installing in a boat or other suitable vessel or apparatus, the pump comprising: a pump cartridge assembly having a cartridge body with one or more flexible cantilever snap tabs and with a discharge nozzle; a pickup tube having an interior cavity with an undercut, and having a pickup tube port, the interior cavity having an inner cylindrical surface with one or more anti-rotation ribs that are formed on the inner cylindrical surface as projections that protrude radially inwardly; an anti-rotation locking ring configured to slide on the cartridge body between a locked position and an unlocked position, wherein one or more cantilever snaps on the anti-rotation locking ring releasably engages one or more corresponding recesses in the cartridge body when the anti-rotation locking ring is in the locked position, and wherein said cantilever snaps are disengaged from said corresponding recesses when the anti-rotation locking ring is in the unlocked position, the anti-rotation locking ring having an outer cylindrical surface with one or more corresponding anti-rotation ribs that are formed on the outer cylindrical surface as corresponding projections that protrude radially outwardly; each flexible cantilever snap tab of the cartridge body configured to snap into place and grip the undercut of the pickup tube when the cartridge body is inserted into the interior cavity and the anti-rotation locking ring is positioned in the unlocked position and which permits rotation of the pickup tube and the cartridge body in relation to one another for positioning the discharge nozzle and the pickup tube port to correspond with hosing or tubing during installation of the pump in the boat or other suitable vessel or apparatus; and the outer cylindrical surface of the anti-rotation locking ring configured to slide at least partly into the interior cavity so that each corresponding anti-rotation rib frictionally engages a respective anti-rotation rib of the pickup tube to prevent a further rotation of the pickup tube in relation to the pump cartridge assembly when the anti-rotation locking ring is positioned in the locked position.