US 12,252,331 B2
Valve for pressurized container
Hervé Bodet, Verdun (FR); and Eric Gaillard, Dieue-sur-Meuse (FR)
Assigned to LINDAL FRANCE SAS, Val de Briey (FR)
Appl. No. 17/629,125
Filed by LINDAL FRANCE SAS, Val de Briey (FR)
PCT Filed Jul. 13, 2020, PCT No. PCT/EP2020/069713
§ 371(c)(1), (2) Date Jan. 21, 2022,
PCT Pub. No. WO2021/013599, PCT Pub. Date Jan. 28, 2021.
Claims priority of application No. 1908421 (FR), filed on Jul. 24, 2019.
Prior Publication US 2022/0274770 A1, Sep. 1, 2022
Int. Cl. B65D 83/48 (2006.01); B65D 83/38 (2006.01); B65D 83/62 (2006.01)
CPC B65D 83/48 (2013.01) [B65D 83/38 (2013.01); B65D 83/62 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A valve for pressurized container, comprising:
a valve body in which are placed:
a spring,
a valve member, and
a valve seal, as well as
a cup having an outer face and an inner face and being provided with:
a cylindrical well, and
a central opening through which a product outlet rod can pass, the central opening of the cup being provided in a bottom wall of the cylindrical well,
the valve body being fixed to the inner face of the cup by welding,
wherein the valve seal is placed against the bottom wall of the cylindrical well and pressed against the cup while surrounding the central opening,
wherein the valve body comprises a tubular body provided with
a fixing crown by which the valve body is welded to the cup, and
an annular protrusion surrounding the central opening and forming an annular tapered edge bearing sealingly against the valve seal and pressing the valve seal against the cup in a sealed manner,
wherein the fixing crown penetrates in the cylindrical well, the welding being made between the fixing crown introduced into the well and the bottom wall of the well.