Pump impeller housing
FIG. 1 is a left side view of a pump impeller _housing showing my new design, the right side and top and _bottom plan views being identical thereto; _ 
     FIG. 2 is a left end view thereof; 
     FIG. 3 is a right end view thereof; and 
     FIG. 4 is a section view thereof taken along line 4--4 of FIG. 2.