Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2011-02-25
2011-12-13
Kurtz, Benjamin (Department: 1778)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S218000, C156S227000, C210S493100, C210S493500, C055S521000
Reexamination Certificate
active
08075720
ABSTRACT:
A method of forming a filter element is disclosed comprising the steps of preparing a plurality of upstanding pleats each having first and second pleat legs, wherein the first pleat leg of one pleat is joined to the second pleat leg of a preceding pleat by a medial pleat section; moving the upstanding pleats into an overlapped condition wherein each medial pleat section becomes part of the second leg of a preceding pleat; and forming the overlapped pleats into a cylindrical configuration.
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Fall Brian L.
Hamlin Thomas J.
Patel Mahesh Z.
Pulek John L.
Spearin Aaron
3M Innovative Properties Company
Kurtz Benjamin
Medved Aleksander
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