US 11,866,884 B2
Method and apparatus for producing a zoned and/or layered substrate
Jian Qin, Appleton, WI (US); Sridhar Ranganathan, Alpharetta, GA (US); Francis P. Abuto, Johns Creek, GA (US); and Vikram Kaul, Atlanta, GA (US)
Appl. No. 17/915,827
Filed by KIMBERLY-CLARK WORLDWIDE, INC., Neenah, WI (US)
PCT Filed Mar. 31, 2021, PCT No. PCT/US2021/025046
§ 371(c)(1), (2) Date Sep. 29, 2022,
PCT Pub. No. WO2021/202637, PCT Pub. Date Oct. 7, 2021.
Claims priority of provisional application 63/002,570, filed on Mar. 31, 2020.
Prior Publication US 2023/0149226 A1, May 18, 2023
Int. Cl. D21F 11/00 (2006.01); D21F 1/02 (2006.01); D04H 1/4382 (2012.01); D04H 1/541 (2012.01); D04H 1/407 (2012.01); D04H 1/425 (2012.01); D04H 1/4374 (2012.01); D04H 1/544 (2012.01); D04H 1/55 (2012.01); D04H 1/732 (2012.01); A61F 13/53 (2006.01); A61F 13/15 (2006.01); A61F 13/537 (2006.01)
CPC D21F 11/002 (2013.01) [A61F 13/53 (2013.01); D04H 1/407 (2013.01); D04H 1/425 (2013.01); D04H 1/4374 (2013.01); D04H 1/43835 (2020.05); D04H 1/544 (2013.01); D04H 1/5412 (2020.05); D04H 1/55 (2013.01); D04H 1/732 (2013.01); D21F 1/022 (2013.01); A61F 13/15699 (2013.01); A61F 13/53717 (2013.01); D10B 2509/026 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A divider for a headbox including a cross direction and a machine direction and a width in the cross direction, the divider comprising:
a first surface;
a second surface, the second surface being opposite from the first surface;
a width defined in the cross direction that is at least 90% of the width of the headbox;
a length defined in the machine direction; and
a first cross-directional divider extending away from the first surface, the first cross-directional divider comprising a cross-directional thickness and a machine-directional length.