US 12,440,859 B2
System and method for refilling a bottle with viscous liquid
Jean-Philippe Lamboux, Louviers (FR); and Loïc Bouet, Louviers (FR)
Filed by TECHNIPLAST, Louviers (FR)
Filed on Apr. 16, 2024, as Appl. No. 18/636,347.
Claims priority of application No. 2303833 (FR), filed on Apr. 17, 2023.
Prior Publication US 2024/0342737 A1, Oct. 17, 2024
Int. Cl. B05B 11/00 (2023.01); B65D 47/26 (2006.01); B67D 7/02 (2010.01)
CPC B05B 11/0097 (2013.01) [B05B 11/0008 (2013.01); B65D 47/265 (2013.01); B67D 7/0288 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system for recharging with liquid a bottle to be recharged from a source bottle containing a viscous liquid, the bottle to be recharged having an aperture disposed above the bottom and the source bottle having an aperture and a bottom opposite to the aperture, the source bottle containing viscous liquid being inverted such that its aperture is disposed above the aperture of the bottle to be recharged, the system comprising:
a liquid passage which extends between the source bottle and the bottle to be recharged by opening out through an opening end inside the bottle to be recharged and which is able to put into communication the source bottle and the interior of the bottle to be recharged so as to allow the transfer of liquid from the source bottle to the bottle to be recharged through the liquid passage, the liquid passage comprising a liquid conduit provided with the opening end of the liquid passage and which extends axially at least partly inside the bottle to be recharged,
an air passage distinct from the liquid passage and which extends from the interior to the exterior of the bottle to be recharged through the aperture of the bottle to be recharged so as to allow the discharge of air from the bottle to be recharged while liquid is transferred from the source bottle to the bottle to be recharged,
a part surrounding the liquid conduit coaxially and providing with the liquid conduit one or several radial spaces defining a reduced passage section of the air passage which is adapted to the viscosity of the liquid, the reduced passage section of the air passage being disposed inside the bottle to be recharged above the opening end of the liquid conduit so as to stop, or at least slow down, the rise of liquid in the bottle to be recharged, and therefore the flow of liquid in said bottle to be recharged, when the liquid level in the bottle to be recharged reaches the reduced passage section of the air passage.