Abstract:
A safety vent is provided for an aerosol container which includes a metal closure member adapted to be sealed on a container body and having an integral hollow groove therein, an integral hollow rib interrupting and spanning the groove, and a score line in the groove across the rib to weaken the rib so that excessive pressure in the container will fracture the residual metal in the score line across the rib to vent the pressure from the container.
Abstract:
A container wall or end closure is provided which has a hollow upwardly convex embossment formed in it, and at least one radially extending score line in an outer portion of the embossment which will be ruptured to form a vent opening in the closure when force is applied against the center of the embossment. The container wall may further include an inclined wall formed therein around the periphery of the embossment and a thinned zone or band of material in such wall to facilitate rupture of the score in the embossment. A method of forming such a container closure is also provided.