Patent ID: 6866240
Filing Date: 2005-03-15
Classification: B29C,B29D,Y10S

Abstract:
1. A mold assembly for producing a plurality of contact lenses, each contact lens being formed in a mold, each mold having a flange portion extending radially from a lens molding surface, the mold assembly comprising: a. a front curve fixture assembly comprising a front curve fixture interior surface and a front curve fixture mating surface; b. a base curve fixture assembly comprising a base curve fixture interior surface and a base curve fixture mating surface; and c. a plurality of mold cavities defined by a selected one of the front curve fixture interior surface or the base curve fixture interior surface, each of the plurality of mold cavities disposed in a zig-zag manner relative to each other, with each of the plurality of mold cavities including a retention edge for complimentary engagement with a mold, the retention edge of a first subset of the plurality of mold cavities being spaced apart from a selected fixture mating surface at a first distance, the retention edge of a second subset of the plurality of mold cavities being spaced apart from the selected fixture mating surface at a second distance, the first distance being different from the second distance so that a plurality of molds may be placed in adjacent cavities so as to overlap the mold flanges.