Diving helmet
FIG. 1 shows a front view of our diving  helmet showing our new design; 
     FIG. 2 shows a side elevation view of  our diving helmet; 
     FIG. 3 shows a sectioned view of our  diving helmet through the midsection thereof; 
     FIG. 4 shows a side view of our diving  helmet opposite from the view taken in FIG. 2; and, 
     FIG. 5 shows a top plan view of our  diving helmet.