Self-venting closure
AssigneeSilgan Dispensing Systems Slatersville LLC
InventorsJames E. Scotton, Patrick J. Brannon
Life of this patent
Estimating the term…
Abstract
A self-venting closure assembly includes a closure body having a deck with a peripheral mounting skirt and an annular seal on an underside of the deck adjacent to the peripheral mounting skirt, further including a circular valve seat within the center portion of the deck, and a plurality of vent openings circumferentially spaced within the valve seat, all surrounded by an annular spillover wall. An elastomeric umbrella valve is centrally mounted to the deck and has a frustoconical valve flap arranged on an underside of the valve seat. The valve flap cooperates with the vent openings to normally seal the vent openings but permits air to flow into an interior of the closure body when a vacuum is applied to an interior of the container on which the closure is mounted.
Claims20
A closure assembly comprising:
- a closure body having a deck with a peripheral mounting skirt,
- an annular seal on an underside of the deck adjacent to the peripheral mounting skirt,
- a valve seat within the deck,
- at least one vent opening disposed within the valve seat, and
- an elastomeric umbrella valve including an axial mounting stem removably received within a mounting hole in the valve seat and having a valve flap arranged on an underside of the valve seat, said valve flap cooperating with said vent opening to normally seal the at least one vent opening but permitting air to flow into an interior of the closure body.
Dependencies are inferred from the claim text.