Patent Publication Number: US-D542511-S

Title: Piston hat

Description:
FIG. 1 is a front perspective view of a piston hat embodying my new design; 
       FIG. 2 is a rear perspective view thereof; 
       FIG. 3 is a front perspective view thereof showing the piston element of the hat in an alternate position tilted to the left side of the hat; 
       FIG. 4 is a front perspective view thereof showing the piston element in another alternate position tilted to the right side of the hat; 
       FIG. 5 is a right side perspective view of FIG. 1; 
       FIG. 6 is a left side perspective view thereof; 
       FIG. 7 is a top view thereof; and, 
       FIG. 8 is a bottom view thereof.