US 11,814,232 B2
Cartridge, method of manufacturing a cartridge, dispensing assembly and method of assembling a dispensing assembly
Philipp Seiler, Au (CH); Tobias Bodenmüller, Eriskirch (DE); and Richard Lavelanet, Balgach (CH)
Assigned to MEDMIX SWITZERLAND AG, Haag (CH)
Appl. No. 17/281,774
Filed by medmix Switzerland AG, Haag (CH)
PCT Filed Aug. 2, 2019, PCT No. PCT/EP2019/070895
§ 371(c)(1), (2) Date Mar. 31, 2021,
PCT Pub. No. WO2020/069784, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. 18198353 (EP), filed on Oct. 2, 2018; and application No. 19168895 (EP), filed on Apr. 12, 2019.
Prior Publication US 2021/0394989 A1, Dec. 23, 2021
Int. Cl. B65D 81/32 (2006.01); B01F 35/52 (2022.01); B05C 17/005 (2006.01); B65D 83/00 (2006.01)
CPC B65D 81/3261 (2013.01) [B01F 35/522 (2022.01); B05C 17/00513 (2013.01); B05C 17/00553 (2013.01); B65D 83/0072 (2013.01)] 40 Claims
OG exemplary drawing
 
1. A cartridge for a material to be dispensed comprising:
a rigid head part having a dispensing outlet; and
a flexible film forming a cartridge wall, with the flexible film bounding a cartridge chamber for the material to be dispensed, extending at least partially in a longitudinal direction of the cartridge and having a front end connected to the head part, the head part having an outer circumferential surface comprising formations, and an inner surface of the front end of the flexible film being sealingly and non-releasably connected to the outer circumferential surface of the head part and to the formations at the outer circumferential surface of the head part,
the formations comprising grooves formed in the outer circumferential surface of the head part, and comprising a ring recess formed in the outer circumferential surface and that circumferentially extends around the outer circumferential surface perpendicular to the longitudinal direction of the cartridge, and the ring recess extending through the grooves.