Patent ID: 7329326

Claim:
A method of making fluted air filters; said method including steps of: (a) providing an extension of media comprising a fluting sheet having a plurality of flutes secured to a facing sheet with a first sealant bead therebetween; (i) the first sealant bead being positioned between the fluting sheet and the facing sheet at a location spaced from edges thereof and extending along a length of the media; (b) cutting the extension of media at a location through the first sealant bead along the length of the media to form a first sheet of media comprising fluting sheet secured to facing sheet with the first sealant bead therebetween and a second sheet of media comprising fluting sheet secured to facing sheet with the first sealant bead therebetween; (c) after the step of cutting, applying a second sealant bead to the first sheet of media and to the second sheet of media, and forming a fluted air filter from the first sheet of media and forming a fluted air filter from the second sheet of media.