US 11,926,560 B2
Installation for treating glass containers comprising a chamber for metering treatment substance having a double shutter, and associated method
Pierre-Luc Etchepare, Rouen (FR); Christophe Depoilly, Aigneville (FR); and Jingwei Zhang, Massy (FR)
Assigned to SGD S.A., Paris (FR)
Appl. No. 17/782,375
Filed by SGD S.A., Paris (FR)
PCT Filed Nov. 27, 2020, PCT No. PCT/FR2020/052207
§ 371(c)(1), (2) Date Jun. 3, 2022,
PCT Pub. No. WO2021/111066, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. 1913822 (FR), filed on Dec. 5, 2019.
Prior Publication US 2023/0016184 A1, Jan. 19, 2023
Int. Cl. C03C 23/00 (2006.01)
CPC C03C 23/008 (2013.01) [C03C 23/007 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An installation (1) for treating an inner face (6) of a wall (3) of a glass container (2), which wall (3) delimits an accommodation cavity (4) for a product and an opening (5) providing access to said accommodation cavity (4), said installation (1) comprising a source (12) of powder or granular treatment substance (13) and a means (15) for dispensing said treatment substance (13) into the accommodation cavity (4) of the glass container (2), said installation (1) being characterized in that said dispensing means (15) comprises at least one dosing chamber (16) that extends between an inlet port (18) fed by said source (12) of treatment substance (13) and an opposite outlet port (19) intended to be positioned above the opening (5) of the glass container (2), as well as an upper shutter (20) and a lower shutter (21) of the dosing chamber (16) positioned in a staggered manner at the inlet port (18) and the outlet port (19), respectively, of the dosing chamber (16).