Patent ID: 8235311
Filing Date: 2012-08-07
Classification: B05B

Abstract:
1. A venting device for a trigger sprayer closure, comprising: a venting ring provided with one or more apertures for allowing the passage of fluid; a gasket provided with at least one aperture covered by a material for allowing the passage of gas but preventing liquid from passing therethrough; characterised in that the venting ring is provided with a channel arranged to maintain fluid communication between the one or more apertures of the venting ring and the at least one aperture of the gasket if the relative positions of the respective apertures are changed; and wherein a clamping ring is provided to clamp the gasket to the venting ring, the gasket is provided with a central aperture through which a plunger may extend, and the diameter of said central aperture is smaller than the diameter of the clamping ring, sealing means are provided, being held between the clamping ring and the venting ring, to provide a liquid seal between the venting ring and a plunger when the plunger is extended through the central aperture.