Air driven diaphragm pump
FIG. 1 is a front elevational view of an air driven diaphragm pump showing my new design; 
     FIG. 2 is a side elevational view thereof, the opposite side being identical in appearance; 
     FIG. 3 is a rear elevational view thereof; 
     FIG. 4 is a top plan view thereof; and 
     FIG. 5 is a top perspective view thereof.