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US 11,325,757 B2Granted
Container closure for pourable liquids including a pour spout and a tamper evident vent structure
AssigneeLetica Corporation
InventorsJohn R. Selina, Wayne J. Harper, Eric D. Kowal
Life of this patent
Estimating the term…
Abstract
A re-closable vent for a container closure which requires no pre-formed holes in the closure deck, provides a tamper-evident feature, and provides simple rotation of a cap structure to open and a vent after punching out a frangible deck section.
Claims20
A closure for containers of pourable liquid comprising:
- a deck, a pour spout coupled to said deck, and a vent structure coupled to said deck and offset from the pour spout, the vent structure including:
- an imperforate area coupled to said deck and being formed without any pre-formed holes extending from an upper surface of said imperforate area to a lower surface of said imperforate area, said imperforate area including (i) an integrally molded retainer structure coupled to the upper surface of said imperforate area and, radially offset from said retainer structure, (ii) a recessed punch-out area spaced apart from the retainer structure and bounded by a frangible border, the recessed punch-out area being configured to provide a vent opening when at least partially separated from said imperforate area;
- and
- a vent cover having a vent hole that overlies said punch-out area when said vent cover is rotated to a first predetermined angular position;
- said vent cover having formed on a bottom surface thereof a bearing structure that snaps into said retainer structure for retaining said cover on said deck and allowing rotation of said cover to a second angular position wherein said punch-out area is fully closed by said vent cover,
- wherein the entire bearing structure is located above said upper surface of said imperforate area after being installed on said retainer structure.
3 more elements
A closure for a container comprising:
- a deck,
- a spout coupled to said deck, and
- a vent structure coupled to said deck and offset from the spout, the vent structure including:
- an imperforate area integral with said deck and being formed without any pre-formed holes extending therethrough,
- an integrally molded retainer structure coupled to an upper surface of said imperforate area,
- a punch-out area with a frangible border coupled to said imperforate area and positioned radially offset from said retainer structure, wherein said punch-out area provides a vent opening in said imperforate area when said punch-out area is at least partially separated from said imperforate area;
- and
- a vent cover having a vent hole that overlies said punch-out area when said vent cover is rotated to a first predetermined angular position;
- said vent cover having formed on a bottom surface thereof a bearing structure that snaps into said retainer structure for retaining said cover on said deck and allowing rotation of said cover to a second angular position wherein said punch-out area is fully closed by said vent cover.
6 more elements
Dependencies are inferred from the claim text.