Method and apparatus for forming fluted filtration media
AssigneeDonaldson Company, Inc.
InventorsTed A. Moe, Gregory J. Fesenmaier, Gary J. Rocklitz, Ming Ouyang, Anitha M. Mathew
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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.
Claims23
A method for forming fluted filtration media comprising:
- fluting filtration media to provide fluted filtration media having a repeating pattern of flutes wherein the repeating pattern of flutes comprises at least one flute having at least one ridge provided in a flute period between adjacent same side peaks.
An apparatus for forming fluted media comprising:
- (a) a first roll comprising a plurality of first roll projections and a plurality of first roll recesses wherein the first roll provides alternating first roll projection and first roll recess, and wherein at least one of the first roll projections comprises at least two media contact areas separated by a media relaxation area;
- and
- (b) a second roll comprising a plurality of second roll recesses and second roll projections wherein the second roll provides alternating second roll recess and second roll projection, and wherein at least one of the second roll recesses comprises at least two media contact areas separated by a media relaxation area.
An apparatus for forming fluted media comprising:
- (a) a first roll comprising a plurality of first roll projections and first roll recesses wherein the first roll provides alternating first roll projection and first roll recess;
- (b) a second roll comprising a plurality of second roll recesses and second roll projections wherein the second roll provides alternating second roll recess and second roll projection;
- and
- (c) the first roll projections, the first roll recesses, the second roll recesses, and the second roll projections are constructed to interact to provide a bite, that, when filtration media passes through the bite, provides the filtration media with a repeating pattern of flutes wherein the repeating pattern of flutes comprises at least one flute having at least one ridge provided in a flute period between adjacent same side peaks.
Dependencies are inferred from the claim text.