US 12,129,907 B2
Pneumatic structure and associated production method
Emmanuel Siefert, Paris (FR); Benoît Roman, Ivry sur Seine (FR); José Bico, Paris (FR); and Etienne Reyssat, Antony (FR)
Assigned to PARIS SCIENCES ET LETTRES—QUARTIER LATIN, Paris (FR); CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS, Paris (FR); ECOLE SUPERIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS, Paris (FR); SORBONNE UNIVERSITÉ, Paris (FR); and UNIVERSITÉ DE PARIS, Paris (FR)
Appl. No. 17/262,402
Filed by PARIS SCIENCES ET LETTRES—QUARTIER LATIN, Paris (FR); CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR); ECOLE SUPERIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS, Paris (FR); SORBONNE UNIVERSITÉ, Paris (FR); and UNIVERSITÉ DE PARIS, Paris (FR)
PCT Filed Jul. 22, 2019, PCT No. PCT/EP2019/069707
§ 371(c)(1), (2) Date Jan. 22, 2021,
PCT Pub. No. WO2020/020839, PCT Pub. Date Jan. 30, 2020.
Claims priority of application No. 1856800 (FR), filed on Jul. 23, 2018.
Prior Publication US 2022/0341479 A1, Oct. 27, 2022
Int. Cl. F16F 9/04 (2006.01)
CPC F16F 9/0418 (2013.01) [F16F 9/0409 (2013.01); F16F 9/049 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A pneumatic structure comprising an elastically deformable body defining at least one network of internal cavities, each internal cavity having a closed contour in at least one section of the internal cavity,
each internal cavity being configured to be pressurized so as to cause the elastically deformable body to pass from a rest configuration to at least one pressurized configuration,
the elastically deformable body having in each pressurized configuration, a macroscopic metric that is distinct from a macroscopic metric in the rest configuration;
a radius of curvature of an exterior surface of the elastically deformable body, taken opposite each internal cavity adjacent to the exterior surface, is greater than two times the size of said internal cavity adjacent to the exterior surface in each pressurized configuration,
wherein each internal cavity is delimited laterally, in said at least one section, by two lateral walls, by a lower region and by an upper region of the elastically deformable body,
wherein said two lateral walls are part of the elastically deformable body, and wherein the elastically deformable body is produced from an elastomer-based material.