US 12,421,006 B2
Container made of paper
André Hofmann, Mittweida (DE); Jochen Gruner, Dresden (DE); and Steffen Herold, Chemnitz (DE)
Assigned to LENZING AKTIENGESELLSCHAFT, Lenzing (AT)
Appl. No. 18/041,172
Filed by TUNAP GMBH & CO. KG, Wolfratshausen (DE)
PCT Filed May 27, 2021, PCT No. PCT/EP2021/064164
§ 371(c)(1), (2) Date Feb. 9, 2023,
PCT Pub. No. WO2022/033737, PCT Pub. Date Feb. 17, 2022.
Claims priority of application No. 10 2020 121 103.1 (DE), filed on Aug. 11, 2020.
Prior Publication US 2023/0356907 A1, Nov. 9, 2023
Int. Cl. B65D 3/22 (2006.01); B65D 3/04 (2006.01); B65D 77/06 (2006.01)
CPC B65D 77/06 (2013.01) [B65D 3/04 (2013.01); B65D 3/22 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A container for holding a fluid, the container comprising:
an inner sleeve having a first opening and a second opening opposite the first opening;
an outer sleeve having a third opening and a fourth opening opposite the third opening;
wherein the inner sleeve and the outer sleeve are made of paper,
wherein the inner sleeve comprises at the first opening a first reinforcing element which extends into the first opening,
wherein the outer sleeve comprises at the third opening a second reinforcing element which extends into the third opening;
a functional insert,
wherein the outer sleeve has a larger diameter than the inner sleeve so that the inner sleeve is insertable into the outer sleeve through the fourth opening such that the insert is fastened between the first reinforcing element at the first opening and the second reinforcing element at the third opening,
wherein the inner sleeve forms a shorter length in a longitudinal direction than the outer sleeve, so that an area is formed between the first reinforcing element and the second reinforcing element in an interior of the outer sleeve, which is configured such that the functional insert is arranged and fastened within the area.