Patent ID: 11865489
Assignee: DONALDSON COMPANY, INC.
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 9:
10. A method of forming a filter element comprising:
passing an elongate sheet of filter media between two rollers in a machine direction of the media to form flute peaks and flute valleys alternating in the machine direction;
depositing a first sealing bead along a first elongate edge of the filter media on a first surface;

depositing a second sealing bead along a second elongate edge of the filter media on a second surface; and
pleating the elongate sheet of filter media to have a plurality of pleats extending between a first set of pleat folds and a second set of pleat folds, wherein the first set of pleat folds and the second set of pleat folds extend in a cross-machine direction relative to the sheet of filter media.