# US 2023/0055070 A1 · One-piece closure > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0055070 A1 - Document ID: US20230055070A1 - Status: Published application - Kind: A1 - Application number: 17/850,353 - Filed: 2022-06-27 - Published: 2023-02-23 - Earliest claimed: 2021-08-19 - Assignees: Closure Systems International Inc. - Applicants: Closure Systems International Inc. - Inventors: Jeremiah Migas; Jeremy Morin - Web page: https://patentgrep.com/patent/US20230055070A1 ## CPC - B65D 51/228: {a major part of the inner closure being removed from the container after the opening} - B65D 1/0246: {Closure retaining means, e.g. beads, screw-threads} - B65D 47/0804: {integrally formed with the base element provided with the spout or discharge passage} - B65D 47/103: {Membranes with a tearing element} - B65D 2251/0021: of the B65D43/16-type - B65D 2251/0093: Membrane - B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES ## Abstract A one-piece polymeric closure includes first and second closure portions. The first closure portion includes a first polymeric top wall portion and a first polymeric annular skirt portion. The first annular skirt includes a first set of splines on an inner surface thereof and knurls formed on an exterior surface thereof. The second closure portion includes a second polymeric top wall portion with a pull ring and a second polymeric annular skirt portion The second annular skirt portion includes a second set of splines on an outer surface thereof, an internal thread formation, and a locking ratchet band. The first and second sets of splines are configured to interact with each other when the polymeric closure is in a closed position. The polymeric closure opens by flipping the first closure portion with respect to the second closure portion via a hinge. ## Claims ### Claim 1 A one-piece polymeric closure comprising: a first closure portion including: a first polymeric top wall portion, a first polymeric annular skirt portion depending from the first polymeric top wall portion, the first polymeric annular skirt portion including a first set of splines on an inner surface thereof, the first polymeric annular skirt portion including a plurality of knurls formed on an exterior surface thereof; and a second closure portion including: a second polymeric top wall portion including a removable pull ring, a second polymeric annular skirt portion depending from the second polymeric top wall portion, the second polymeric annular skirt portion including a second set of splines on an outer surface thereof, an internal thread formation for mating engagement with an external thread formation of a container, and a locking ratchet band to assist in preventing or inhibiting access to the container, the first and second sets of splines being configured and located to interact with each other when the polymeric closure is in a closed position, wherein the polymeric closure is adapted to be opened by flipping the first closure portion with respect to the second closure portion via a hinge. ### Claim 2 (depends on 1) The closure of claim 1, wherein the plurality of knurls extends around the entire periphery of the first polymeric annular skirt portion. ### Claim 3 (depends on 1) The closure of claim 1, wherein the second closure portion further includes a polymeric continuous plug seal depending from the second polymeric top wall portion. ### Claim 4 (depends on 3) The closure of claim 3, wherein the second closure portion further includes an outer seal depending from the second polymeric top wall portion. ### Claim 5 (depends on 1) The closure of claim 1, wherein the first polymeric top wall portion includes a continuous wedge seal extending from an inner surface thereof. ### Claim 6 (depends on 1) The closure of claim 1, wherein the first polymeric annular skirt portion includes a lift extension to assist in moving the first closure portion with respect to the second closure portion, the lift extension being generally located opposite of the hinge. ### Claim 7 (depends on 1) The closure of claim 1, wherein the first polymeric annular skirt portion includes a first interlocking bead extending from an inner surface thereof, the second polymeric annular skirt portion including a second interlocking bead extending from an outer surface thereof, the first and second interlocking beads cooperate to assist in maintaining the polymeric closure in a closed position. ### Claim 8 (depends on 1) The closure of claim 1, wherein the closure comprises at least one polyolefin. ### Claim 9 (depends on 1) The closure of claim 1, wherein the closure weighs from about 8 to about 20 grams. ### Claim 10 (depends on 9) The closure of claim 9, wherein the closure weighs from about 10 to about 15 grams. ### Claim 11 A package comprising: a container having a neck portion defining an opening, the container having an external thread formation on the neck portion; and a one-piece closure being configured for fitment to the neck portion of the container for closing the opening, the one-piece closure including a first closure portion and a second closure portion, the first closure portion including a first polymeric top wall portion, and a first polymeric annular skirt portion depending from the first polymeric top wall portion, the first polymeric annular skirt including a first set of splines on an inner surface thereof, the first annular skirt portion including a plurality of knurls formed on an exterior surface thereof; the second closure portion including: a second polymeric top wall portion including a removable pull ring, and a second polymeric annular skirt portion depending from the second polymeric top wall portion, the second polymeric annular skirt portion including a second set of splines on an outer surface thereof, an internal thread formation for mating engagement with an external thread formation of a container, and a locking ratchet band to assist in preventing or inhibiting access to the container, the first and second sets of splines being configured and located to interact with each other when the polymeric closure is in a closed position, wherein the polymeric closure is adapted to be opened by flipping the first closure portion with respect to the second closure portion via a hinge. ### Claim 12 (depends on 11) The package of claim 11, wherein the container further includes a transfer collar, the one-piece closure further includes an undercut formed on the second polymeric annular skirt portion, the transfer collar and the undercut cooperating to assist in distributing the torque during application of the closure onto the container. ### Claim 13 (depends on 11) The package of claim 11, wherein the container further includes finish ratchet teeth, the finish ratchet teeth cooperate with the locking ratchet band to provide an irreversible lock. ### Claim 14 (depends on 11) The package of claim 11, wherein the plurality of knurls extends around the entire periphery of the first polymeric annular skirt portion. ### Claim 15 (depends on 11) The package of claim 11, wherein the first polymeric top wall portion includes a continuous wedge seal extending from an inner surface thereof. ### Claim 16 (depends on 11) The package of claim 11, wherein the first polymeric annular skirt portion includes a lift extension to assist in moving the first closure portion with respect to the second closure portion, the lift extension being generally located opposite of the hinge. ### Claim 17 (depends on 11) The package of claim 11, wherein the first polymeric annular skirt portion includes a first interlocking bead extending from an inner surface thereof, the second polymeric annular skirt portion including a second interlocking bead extending from an outer surface thereof, the first and second interlocking beads cooperate to assist in maintaining the polymeric closure in a closed position. ### Claim 18 (depends on 11) The package of claim 11, wherein the closure comprises at least one polyolefin. ### Claim 19 (depends on 11) The package of claim 11, wherein the closure weighs from about 8 to about 20 grams. ### Claim 20 (depends on 19) The package of claim 19, wherein the closure weighs from about 10 to about 15 grams.