Patent ID: 8708674

Claim:
An air compressor comprising: a lower blower housing comprising a central portion having a cylindrical outer wall, a cylindrical inner wall, and an annular groove formed in the inner wall; a motor disposed within the central portion of the lower blower housing, the motor comprising: a stator housing having a cylindrical outer wall and a locating ring having a rectangular cross-section extending about at least a portion of a circumference of the outer wall, wherein the outer wall of the stator comprises an outer wall cross-sectional profile that is complementary to, and follows contours of an inner wall cross-sectional profile of, the inner wall of the lower blower housing and the locating ring is complementary to, received within, and has a substantially similar width as the annular groove so as to locate the motor within the lower blower housing; and a rotor disposed within and rotatably coupled to the stator housing; an upper blower housing coupled to the lower blower housing thereby forming an annular chamber; and an air impeller fixedly coupled to the rotor and disposed within the annular chamber, the impeller having a conical ramp portion extending downward, a plurality of vanes extending upward from the ramp portion, and a lip portion extending downward from the ramp portion, the lip portion having a cylindrical outer surface that is generally flush with the outer wall of the central portion of the lower blower housing.