Flat plate solar collector
FIG. 1 is a top perspective view of a flat plate solar collector embodying my new design; 
     FIG. 2 is a top plan view thereof; 
     FIG. 3 is a bottom plan view thereof on a reduced scale; 
     FIG. 4 is a front elevation thereof, the rear elevation being a mirror image; 
     FIG. 5 is a right side elevation thereof on a reduced scale, the left side elevation being a mirror image; 
     FIG. 6 is a vertical sectional view taken on line 6--6 of FIG. 2; and 
     FIG. 7 is an enlarged vertical sectional view taken on line 7--7 of FIG. 2. 
     The pattern of circular elements partially shown in FIGS. 1 and 2 is uniformly and continuously repeated across the entire indicated area.