Flush valve diaphragm

FIG. 1 is a top plan view of a first embodiment of a flush valve diaphragm showing my new design, with a central portion shown in broken lines, which do not form part of the new design;

FIG. 2 is a bottom plan view of the first embodiment shown in FIG. 1;

FIG. 3 is an enlarged section taken along lines III—III of FIG. 1, the section shows the material to be made of rubber which does not form a part of the claimed ornamental design;

FIG. 4 is an enlarged section taken along lines IV—IV of FIG. 1, the section shows the material to be made of rubber which does not form a part of the claimed design;

FIG. 5 is an enlarged section taken along section lines V—V of FIG. 1, the section shows the material to be made of rubber which does not form a part of the claimed design;

FIG. 6 is a side elevational of the first embodiment shown in FIG. 1, which appears the same about the circumferential perimeter of the diaphragm, therefore only one side elevational view is provided.

FIG. 7 is a top plan view of a second embodiment of a flush valve diaphragm showing my new design, with a central portion shown in broken lines, which do not form part of the new design;

FIG. 8 is a bottom plan view of the second embodiment shown in FIG. 7;

FIG. 9 is an enlarged section taken along lines IX—IX of FIG. 7, the section shows the material to be made of rubber which does not form a part of the claimed ornamental design;

FIG. 10 is an enlarged section taken along lines X—X of FIG. 7, the section shows the material to be made of rubber which does not form a part of the claimed design;

FIG. 11 is an enlarged section taken along section lines XI—XI of FIG. 7, the section shows the material to be made of rubber which does not form a part of the claimed design; and,

FIG. 12 is a side elevational view of the second embodiment shown in FIG. 7, which appears the same about the circumferential perimeter of the diaphragm, therefore only one side elevational view is provided.