Patent ID: 8202046
Filing Date: 2012-06-19
Classification: F04D

Abstract:
1. A centrifugal pump, comprising: a) an impeller rotatably connected to a motor; b) a volute housing having a counter bore formed therein, said counter bore at least partially defined by and between a projection extending radially inwardly into said volute housing and a tapered surface; c) a wear plate having a lip sized to engage said projection in said counter bore; and d) a snap ring sized for receipt within said counter bore, wherein said snap ring may be compressed radially inwardly during insertion of said snap ring within said counter bore, and upon release of said compression, the interaction of the expansion and associated movement of said snap ring against and along said tapered surface causes said snap ring to become seated against and provide a yieldable axial force to said wear plate to secure said wear plate within said counter bore by and between said snap ring and said projection, said snap ring being removable from said counter bore by compressing said snap ring radially inwardly and withdrawing said snap ring from said housing whereupon said wear plate may then be accessed and removed from said counter bore and said housing.