Method of forming and inserting filter elements in cup-shaped containers
First Claim
1. 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.
14 Assignments
0 Petitions
Accused Products
Abstract
A method of forming and inserting filter elements into cup-shaped containers comprises 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 the adjacent plies to form their upper edges into a scalloped pattern;
c) inserting carrier mandrels between the adjacent plies;
d) joining the adjacent plies along seams extending transversely with respect to the bottom fold line to form a series of collapsed frustoconical filter elements interconnected by scrap segments and supported internally by the carrier mandrels;
e) separating the filter elements one from the other by blanking and removing the scrap segments;
f) transferring the filter elements from the carrier mandrels into cup-shaped containers arranged therebeneath; and
g) securing the thus inserted filter elements to interior surfaces of the cup-shaped containers.
-
Citations
6 Claims
-
1. 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. - View Dependent Claims (2, 3, 4, 5, 6)
-
Specification