US 12,250,964 B2
Additive assembly for a tobacco filter tow
Paul Gibson, London (GB)
Assigned to BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED, London (GB)
Appl. No. 17/294,262
Filed by British American Tobacco (Investments) Limited, London (GB)
PCT Filed Nov. 11, 2019, PCT No. PCT/GB2019/053186
§ 371(c)(1), (2) Date May 14, 2021,
PCT Pub. No. WO2020/099845, PCT Pub. Date May 22, 2020.
Claims priority of application No. 1818587 (GB), filed on Nov. 14, 2018.
Prior Publication US 2022/0007711 A1, Jan. 13, 2022
Int. Cl. A24D 3/04 (2006.01); A24C 5/52 (2006.01); A24D 3/02 (2006.01); A24D 3/06 (2006.01); B23K 26/36 (2014.01); B31F 1/07 (2006.01)
CPC A24D 3/0216 (2013.01) [A24C 5/52 (2013.01); A24D 3/0233 (2013.01); A24D 3/061 (2013.01)] 19 Claims
OG exemplary drawing
 
11. A chain for insertion into tobacco industry product filter tow, the chain comprising discrete portions of additive linked by connecting portions, wherein at least one of the connecting portions is configured to be nonlinear, wherein the discrete portions of additive comprise additive filled blisters, and wherein the blisters comprise a flat surface, the flat surfaces of at least two adjacent blisters in the chain being in planar alignment, the at least two adjacent blisters being connected by the at least one connecting portion configured to be nonlinear, and wherein the at least one connecting portion configured to be nonlinear comprises compensating geometry configured so that, following the application of a straightening force to the at least one connecting portion configured to be nonlinear, said flat surfaces remain in planar alignment.