Valves for aerosol containers

A filling valve for an aerosol container or the like, comprising endless channel means surrounding a predetermined axis and having a transverse wall, an inner rim projecting from an inner region of said transverse wall and an outer rim projecting from an outer region of said transverse wall to an extent greater than said inner rim, said transverse wall being formed with at least one opening passing therethrough, a mounting cup having a central wall portion extending transversely with respect to said axis and engaging said outer rim at an edge thereof distant from said transverse wall of said channel means and extending inwardly from said outer rim toward said axis, said central wall portion of said mounting cup being formed with a central opening through which said axis extends and said central wall portion of said mounting cup having an inner peripheral edge defining said central opening and situated closer to said axis than said inner rim, said central wall portion of said mounting cup being spaced from said inner rim to define a gap therewith and said mounting cup having at the outer periphery of said central wall portion an axially extending wall portion extending along an outer surface of said outer rim and rigidly fixed therewith, and resilient, deformable, compressible seal means compressed between said inner rim and said central wall portion of said mounting cup and having in a rest position an outer peripheral edge extending along and situated directly next to an inner surface of said outer rim, said seal means responding to high pressure fluid which is to be filled into a container to be compressed thereby toward said inner rim, while the position of the latter with respect to said mounting cup remains substantially unchanged, away from said central wall portion of said mounting cup to define with the latter a space through which the high pressure fluid can enter from said central opening of said transverse wall portion of said mounting cup through said space and past the peripheral edge of said seal means and through said opening in said transverse wall of said channel means into the interior of a container on which said mounting cup is mounted, said seal means deflecting at its outer peripheral edge in response to the high pressure fluid toward said transverse wall of said channel means to become situated at least in part in said channel means between said inner and outer rims thereof during filling of the container with the high pressure fluid, whereby said transverse wall of said channel means also has a position which remains substantially unchanged with respect to said mounting cup during filling of the container with high pressure fluid.