Back to results
US 12,752,986 B2Granted
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. The closure body further includes a circular valve seat within the center portion of the deck, and a plurality of vent openings circumferentially spaced within the valve seat. 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.
Claims17
A dispensing system for a liquid product, comprising:
- a container, comprising
- a dispenser opening;
- and
- a container neck, wherein the dispenser opening and the container neck are located on a common face of the container;
- a dispenser attached to the dispenser opening of the container;
- and
- a self-venting closure attached to the container neck, the self-venting closure comprising:
- a deck with a peripheral mounting skirt;
- a valve seat within the deck;
- a mounting hole within the valve seat and wherein the valve seat has an exterior upper surface and an interior lower surface immediately surrounding the mounting hole, said upper and lower surface immediately surrounding the mounting hole being offset inwardly from the remainder of the valve seat;
- a plurality of vent openings within the valve seat outwardly spaced around the mounting hole and wherein an underside of said valve seat includes a circular flat land area disposed outward of said plurality of vent openings;
- and
- an elastomeric umbrella valve having an axial mounting stem received within the mounting hole, and having a frustoconical valve flap arranged on an underside of the valve seat, said frustoconical valve flap extending radially outward from the mounting stem and cooperating with the plurality of vent openings to allow air to flow into the container,
- wherein the elastomeric umbrella valve having at least one retaining shoulder on an opposite side of the axial mounting stem from the frustoconical valve flap, and the at least one retaining shoulder is received in the offset inwardly exterior upper surface;
- and
- wherein the frustoconical valve flap terminates with a peripheral annular sealing rim, the sealing rim having a flat sealing surface extending in parallel facing relation with the flat circular land area and which is engaged with the circular flat land area, the sealing rim further having a flat surface opposed to the flat sealing surface.
13 more elements
A dispensing system for a liquid product, comprising:
- a container, comprising
- a dispenser opening;
- and
- a container neck opening, wherein the dispenser opening and the container neck opening are located on a common face of the container;
- a dispenser attached to the dispenser opening of the container;
- and
- a self-venting closure attached to the container neck opening, the self-venting closure comprising
- a deck, comprising:
- a mounting hole and wherein the deck has an exterior upper surface and an interior lower surface immediately surrounding the mounting hole, said upper and lower surfaces immediately surrounding the mounting hole being offset inwardly from the remainder of the deck;
- and at least one vent opening in the deck adjacent the mounting hole;
- a mounting skirt extending off the deck;
- and
- an elastomeric umbrella valve, comprising:
- a mounting stem seated in the mounting hole;
- and
- a frustoconical valve flap extending radially outward from the mounting stem, wherein the valve flap covers the at least one vent opening,
- wherein the elastomeric umbrella valve having at least one retaining shoulder on an opposite side of the mounting stem from the frustoconical valve flap, and the at least one retaining shoulder is received in the offset inwardly exterior upper surface;
- and
- wherein the frustoconical valve flap terminates in a peripheral annular sealing rim having a flat sealing surface which extends in parallel facing relation with a flat circular land area on an underside of the deck, and which engages with the flat circular land area, the sealing rim further having a flat surface opposed to the flat sealing surface.
16 more elements
A dispensing system for a liquid product, comprising:
- a container, comprising
- a dispenser opening;
- and
- a container neck, wherein the dispenser opening and the container neck are located on a common face of the container;
- a dispenser attached to the dispenser opening of the container;
- and
- a self-venting closure attached to the container neck, the self-venting closure comprising:
- a deck with a peripheral mounting skirt;
- a valve seat within the deck;
- a mounting hole within the valve seat and wherein the valve seat has an exterior upper surface and an interior lower surface immediately surrounding the mounting hole, said upper and lower surfaces immediately surrounding the mounting hole being offset inwardly from the remainder of the valve seat;
- a plurality of vent openings within the valve seat outwardly spaced around the mounting hole and wherein an underside of said valve seat includes a circular flat land area disposed outward of said plurality of vent openings;
- and
- an elastomeric umbrella valve having an axial mounting stem received within the mounting hole, and having a frustoconical valve flap arranged on an underside of the valve seat, said frustoconical valve flap extending radially outward from the mounting stem and cooperating with the plurality of vent openings to allow air to flow into the container,
- wherein the elastomeric umbrella valve having at least one retaining shoulder on an opposite side of the mounting stem from the frustoconical valve flap, and the at least one retaining shoulder is received in the offset inwardly exterior upper surface;
- and
- wherein the frustoconical valve flap terminates with a peripheral annular sealing rim, the sealing rim having a flat sealing surface which is engaged with the circular flat land area in parallel facing relation, the sealing rim further having a flat surface opposed to the flat sealing surface.
13 more elements
Dependencies are inferred from the claim text.