Patent ID: 6440256
Filing Date: 2002-08-27
Classification: A47J,B65B,Y10T

Abstract:
A method of forming and inserting filter elements into cup-shaped containers comprising the steps of:a) folding a continuous web of filter material into two adjacent plies which have separable upper edges and are joined one to the other along a bottom fold line; b) blanking said adjacent plies to form said upper edges into a scalloped pattern; c) inserting carrier mandrels between said adjacent plies; d) joining said adjacent plies along seams extending transversely with respect to said bottom fold line to form a series of collapsed frustoconical filter elements interconnected by scrap segments and supported internally by said carrier mandrels; e) separating said filter elements one from the other by blanking and removing said scrap segments; f) transferring said filter elements from said carrier mandrels into cup-shaped containers arranged therebeneath; and g) securing the thus inserted filter elements to interior surfaces of said cup-shaped containers.