Motor driven centrifugal pump

Claim 1

A pump comprising: a generally cylindrical housing having a coaxial cylindrical pump chamber in one end, an inlet nipple extending coaxially from said housing end and containing an inlet passage opening to said chamber, means on said nipple for securing said nipple and thereby the entire pump to a pump mount, an outlet nipple extending tangentially from said housing adjacent said end and containing an outlet passage opening tangentially to said chamber, and a motor chamber in the opposite end of said housing, said housing comprising a circular wall member between and forming a common boundry wall of said chambers and having circular flanges about its edge projecting axially beyond opposite sides of the wall member, a first generally cup-shaped end portion having a cylindrical wall seating against and sealed to one side of said wall member with the adjacent flange of the wall member overlapping the cylindrical wall of said end portion to form said pump chamber, said inlet nipple and outlet nipple extending froM said cup portion, and a second generally cup-shaped end portion having a cylindrical wall seating against and sealed to the opposite side of said wall member with the adjacent flange of said wall member overlapping the cylindrical wall of said second end portion to form said motor chamber, a centrifugal pump impeller rotatably mounted in said chamber to turn about the axis of the chamber, and a motor in said motor chamber having a shaft connected to said impeller for driving said impeller in rotation.