Expandable sealing mechanism

FIG. 1 is a perspective view of end portions of an expansion band made in accordance with the present disclosure, wherein a portion of the expansion band is shown in broken lines and the central nut is shown entirely in broken lines;

FIG. 2 is an enlarged perspective view thereof, wherein a hex-shaped periphery of the right end portion of the expansion band is shown in broken lines;

FIG. 3 is a front elevation view thereof, wherein a portion of the expansion band is shown in broken lines and the central nut is shown entirely in broken lines;

FIG. 4 is a top plan, partial cross-sectional view thereof taken along line 4 - 4 of FIG. 3 , wherein the central nut is shown entirely in broken lines;

FIG. 5 is a bottom plan view thereof, wherein a portion of the expansion band is shown in broken lines and wherein the oversleeve and central nut are shown entirely in broken lines;

FIG. 6 is a side elevation, cross-sectional view thereof taken along line 6 - 6 of FIG. 3 , wherein a hex-shaped periphery of the end portion of the expansion band is shown in broken lines; and,

FIG. 7 is a side elevation view thereof, it being understood that left and right side views of the sealing assembly are identical, wherein a portion of the expansion band is shown in broken lines.

The broken lines in the figures represent portions of the expandable sealing mechanism that form no part of the claimed design.