US 12,221,262 B2
Double-walled container
Ryoji Kato, Tokyo (JP); and Takeshi Nakazawa, Tokyo (JP)
Assigned to SHISEIDO COMPANY, LTD., Tokyo (JP)
Appl. No. 18/246,038
Filed by SHISEIDO COMPANY, LTD., Tokyo (JP)
PCT Filed Oct. 14, 2021, PCT No. PCT/JP2021/038004
§ 371(c)(1), (2) Date Mar. 21, 2023,
PCT Pub. No. WO2022/085549, PCT Pub. Date Apr. 28, 2022.
Claims priority of application No. 2020-176457 (JP), filed on Oct. 21, 2020.
Prior Publication US 2023/0356908 A1, Nov. 9, 2023
Int. Cl. B65D 77/06 (2006.01); A45D 34/00 (2006.01)
CPC B65D 77/06 (2013.01) [A45D 34/00 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A double-walled container comprising:
an outer container comprising a bottomed, cylindrical body made of a material with high rigidity, the cylindrical body having a circular inner perimeter surface in horizontal cross-section; and
an inner container comprising a bottomed, cylindrical body made of an elastically deformable material, the cylindrical body having a non-circular outer perimeter surface in horizontal cross-section, the inner container being removably insertable into the outer container,
wherein with the inner container entirely outside the outer container, a first radius of a circumscribed circle of the non-circular outer perimeter surface in horizontal cross-section is greater than a second radius of the circular inner perimeter surface of the outer container in horizontal cross-section, and
wherein the inner container is configured to be elastically deformed when inserted into the outer container, such that the first radius is reduced to be smaller than the second radius, and portions of the non-circular outer perimeter surface of the inner container form a plurality of outwardly projecting regions that are elastically pressed against the circular inner perimeter surface of the outer container at spaced intervals around the circular inner perimeter surface, thereby securing the inner container within the outer container.