The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 07, 2017
Filed:
Feb. 03, 2009
Ted A. Moe, Minneapolis, MN (US);
Gregory J. Fesenmaier, Burnsville, MN (US);
Gary J. Rocklitz, Burnsville, MN (US);
Ming Ouyang, Roseville, MN (US);
Anitha M. Mathew, Thiruvananthapuram, IN;
Ted A. Moe, Minneapolis, MN (US);
Gregory J. Fesenmaier, Burnsville, MN (US);
Gary J. Rocklitz, Burnsville, MN (US);
Ming Ouyang, Roseville, MN (US);
Anitha M. Mathew, Thiruvananthapuram, IN;
Donaldson Company, Inc., Minneapolis, MN (US);
Abstract
A method form forming fluted filtration media is provided. The method includes forming fluted filtration media having a repeating pattern of flutes wherein at least one flute in the repeating pattern of flutes comprises at least one ridge in a flute period between adjacent same side peaks. The repeating pattern of flutes can comprise at least one flute having at least two ridges provided in a flute period between adjacent same side peaks. An apparatus for forming fluted filtration media is provided.