Patent ID: 8118197
Filing Date: 2012-02-21
Classification: B21D,B65D,Y10T

Abstract:
1. A method of manufacturing a mounting cup for an aerosol valve, said cup having an inner pedestal portion for mounting the aerosol valve, an outer circular channel portion for mounting on the bead of an aerosol container, and a skirt portion forming the outer wall of the channel portion with said skirt portion having a specified skirt height and a terminating edge, said method comprising: cutting a metal blank from a metal sheet, said metal blank having a curved perimeter; pressing and drawing said metal blank into a mounting cup preform in a preform pressing and drawing station, said mounting cup preform having a channel portion and a skirt portion having a skirt height and a terminating edge; performing further forming operations on said mounting cup preform at a plurality of further stations to further form the mounting cup; and performing a bumping operation on said terminating edge at one of said plurality of stations, said bumping operation comprising striking said terminating edge to reduce said skirt height to a specified dimension and to minimize any unevenness of said terminating edge.