Patent ID: 8268719

Claim:
A process for aligning a plurality of layers comprising at least two layers that can be positioned in an abutting relationship with each other comprising forming a plurality of sprocket openings in each of said layers for receiving a sprocket of diminishing diameters as said sprocket extends outwardly from a base, with the center axes of said sprocket openings in each layer being substantially alignable with one another, the largest diameter of the sprocket openings in an abutting layer for first receiving said sprocket being greater than the largest diameter of the sprocket openings in an abutted layer, forming a plurality of reservoir openings in each of at least two of said layers comprising at least an abutting layer and at least an abutted layer, the center axes of said reservoir openings being substantially alignable with one another, positioning said sprocket openings in said layers to correspond with one another and said reservoir openings in said layers to correspond with one another so that substantial alignment of said center axes of said corresponding sprocket openings in said layers effects substantial alignment of said center axes of said corresponding reservoir openings in said layers, engaging said sprocket openings with said sprocket comprising inserting the end of said sprocket having the smallest diameter into said sprocket openings having the largest diameter in said layers and continuing through to the sprocket opening having the smallest diameter in said layers to effect substantial alignment of said center axes of said corresponding sprocket openings and substantial alignment of said center axes of the corresponding reservoir openings in said layers, providing for the diameter of said sprocket and the corresponding diameter of said sprocket openings to be arranged so that upon said insertion into said sprocket openings, said sprocket substantially abuts sprocket openings in corresponding layers but also allows said layers to substantially abut against one another and substantially prevent layer separation during said alignment.