Abstract: A process and apparatus for continuously mixing and applying paste to battery grids for use in lead-acid battery systems, in which particulate lead oxide, water and sulphuric acid are reacted in an elongated mixer having a mixing to conveying ratio of about 65:35 to 80:20 with controlled reaction temperature for an exit product temperature in the range of above 60° C. to about 80° C. Additives including reinforcing fibers can be added in an amount up to 0.6 wt % of the lead oxide and carbon and graphite powder can be added in an amount up to 6 wt % of the lead oxide.

Abstract: The invention provides methods for designing patterns for use in tinted contact lenses in which the patterns are generated using algorithms. The method of the invention provides an objective description of the pattern for purposes of tooling, metrology and manufacturing of a lens incorporating the pattern.

Abstract: The invention provides a method for designing tinted contact lenses that permits the computer-assisted modeling of a tinted lens on-eye. The method of the invention provides a substantially accurate prediction as to the appearance of the lens on-eye and reduces the number of designs that must be clinically tested and the number of iterations that each design must go through.

Abstract: A method of producing lead alloy strip for fabrication of positive and negative electrodes of a lead-acid battery by extruding a lead alloy at elevated temperature to produce a lead alloy strip having a desired profile and rapidly cooling the extruded strip to acquire a desired microstructure. Battery grids produced from the lead alloy strip have reduced vertical growth and enhanced resistance to corrosion.

Abstract: The invention provides tinted contact lenses that provide a more natural appearing iris than by using colorant layers of varying thicknesses.

Abstract: The invention provides tinted contact lenses, and methods for their manufacture, that incorporate a mark to indicate that the lens is a diagnostic lens. The mark can be provided on a lens without interfering with the lens wearer's ability to assess the on-eye appearance of the lens. Additionally, the mark may be provided on the lens using pad printing technology.

Abstract: A method of producing lead alloy strip for fabrication of positive and negative electrodes of a lead-acid battery by extruding a lead alloy at elevated temperature to produce a lead alloy strip having a desired profile and rapidly cooling the extruded strip to acquire a desired microstructure. Battery grids produced from the lead alloy strip have reduced vertical growth and enhanced resistance to corrosion.

Abstract: The invention provides tinted contact lenses, and methods for their manufacture, that alter the natural color of the lens wearer's iris. The lenses use a base layer of translucent color having a clear central zone and a translucent color zone in combination with one or more layers of translucent color, one or more layers of opaque color, or a combination thereof, each of which additional zones has a clear central zone and a zone of color.