Patent ID: 8399814

Claim:
A uniform heating assembly comprising: at least one first insulative substrate; a first common terminal; a second common terminal, said first common terminal and said second common terminal being located adjacent the same edge of said insulative substrate; a multiplicity of continuous conductive filaments at least partially embedded in said at least one first insulative substrate and extending at least mainly along both electrically parallel and geometrically parallel paths, each of said multiplicity of continuous conductive filaments extending between said first common terminal and said second common terminal, said multiplicity of conductive filaments generally not crossing over each other between said first and second terminals, adjacent edges of adjacent ones of said multiplicity of conductive filaments being separated by less than 0.030 inches (0.762 mm) along said geometrically parallel paths between said first common terminal and said second common terminal, said electrically parallel and geometrically parallel paths including straight portions and bent portions; and at least one second insulative substrate located over said multiplicity of conductive filaments, said uniform heating assembly providing heating to a temperature in excess of 300 degrees F. with a temperature variation of less than 20 degrees F. over the extent of the heating blanket.