Method and apparatus for extruding a coating upon a substrate surface

A system for selectively applying a coating to a surface of an object having one of a uniform or non-uniform profile, comprising:

• a feeding stage that feeds the object to be coated;
• a plurality of coating stages, one of the coating stages being substantially aligned with the feeding stage and each of the coating stages being serially coupled to one another, to receive the object from the feeding stage, each coating stage comprising:
• a coating feeder;
• an object coating device, coupled to the coating feeder, said object coating device is a coating die comprised of a first shell portion and second shell portion, each shell portion having an inner face, the inner faces configured and arranged to meet and face each other, said first shell portion having a first aperture and the inner face of said first shell portion includes a concave surface surrounding said first aperture which collects the coating material fed from the coating feeder, said second shell portion having a second aperture which is aligned with said first aperture such that the object being fed through said first aperture and said second aperture of the die is coated, wherein the inner face of said second shell portion includes a fluid filled bladder applicator which surrounds the perimeter of the second aperture and is capable of conforming to the surface of the object so as to enable one to uniformly coat the object regardless of whether the profile of the object is uniform or non-uniform, wherein each successive object coating stage has a first and second aperture larger than the second aperture of the preceding object coating stage;
• and
• a receiving stage, substantially aligned with one of the plurality of coating stages, to receive the object after being coated.