Abstract: A core compressor is disclosed that includes a housing, a first pair of rollers and a second pair of rollers, both positioned in the housing. Each of the pair of rollers includes an upper roller and a lower roller. The first pair of the rollers is located proximate to a first end of the core compressor, and the second pair of the rollers is located proximate to a second and opposing end of the core compressor. The upper roller and lower roller of the first pair of rollers are located a first distance apart. The upper roller and lower roller of the second pair of rollers are located a second distance apart. Each roller includes at least one row of teeth extending generally perpendicularly away from the surface of the roller.

Abstract: In an embodiment of a core compressor, the core compressor includes a housing and a first pair of rollers and a second pair of rollers, both positioned in the housing. For each of the pair of rollers, an upper roller is positioned in vertical alignment relative to a lower roller. The first pair of the rollers is located proximate to a first end of the core compressor, and the second pair of the rollers is located proximate to a second and opposing end of the core compressor. The upper roller of the first pair of rollers is located a first distance from the lower roller of the first pair of rollers. The upper roller of the second pair of rollers is located a second distance from the lower roller of the second pair of rollers. The first distance is greater than the second distance. Each roller includes at least one row of teeth extending generally perpendicularly away from the surface of the roller.

Abstract: A disposable catridge for use with an electrostatic charging device. The disposable cartridge can have a reservoir configured to contain a supply of product suitable for electrostatic spraying, a nozzle configured and disposed to disperse the electrostatically charged product, and an electrode disposed to electrostatically charge the product prior to its dispersal. The disposable cartridge can also have an insulator for insulating the supply of product from electrostatic charge.