DRAWING FIGURES
FIG. 1 shows perspective top elevational view of the
one piece device according to the invention.
FIG. 2 shows a sectional perspective enlargement of
such device taken along line 2-2.
FIG. 3 shows a sectional perspective enlargement of
the device with grout ?lling procedure, taken along line
3—3.
FIG. 4 shows a sectional perspective enlargement
and end view of the device with grout fill in place, taken
along line 4-4.
FIG. 5 shows a pro?le perspective of the device over
concrete subfloor.
FIG. 1a shows the device in a pro?le view.