Patents Assigned to CO2 Pac Limited
  • Publication number: 20240109682
    Abstract: A plastic container comprises an upper portion including a finish defining an opening into the container, a lower portion including a base defining a standing surface, a sidewall extending between the upper portion and the lower portion, the sidewall defining a longitudinal axis, and at least one substantially transversely-oriented pressure panel located in the lower portion. The pressure panel is movable between an outwardly-inclined position and an inwardly-inclined position to compensate for a change of pressure inside the container. The standing surface defines a standing plane, and the entire pressure panel is located between the standing plane and the upper portion of the container when the pressure panel is in the outwardly-inclined position.
    Type: Application
    Filed: December 12, 2023
    Publication date: April 4, 2024
    Applicant: CO2PAC Limited
    Inventors: David MELROSE, Paul KELLEY, John DENNER, Gregory TRUDE
  • Patent number: 11912459
    Abstract: Base includes an outer support wall, a support surface extending inwardly from the outer support wall and defining a reference plane, an inner support wall extending upwardly from the support surface, a first radiused portion extending radially inward from the inner support wall and concave relative to the reference plane, a second radiused portion extending radially inward from the first radiused portion and convex relative to the reference plane, an intermediate surface extending radially inward from the second radiused portion, the intermediate surface including a linear portion and an intermediate radiused portion, a third radiused portion extending radially inward from the intermediate surface and convex relative to the reference plane, and a central portion disposed proximate the third radiused portion.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: February 27, 2024
    Assignee: CO2PAC LIMITED
    Inventors: Justin A. Howell, John E. Denner, Shannon K. Sprenkle, Robert Waltemyer
  • Patent number: 11905095
    Abstract: Hot-fillable plastic bottle including a finished portion, a body portion with at least one circumferential rib configured to resist radial distortion, and a base portion. The base portion comprises a base sidewall, a bottom support surface extending radially inward from the base sidewall and defining a reference plane, an inner support wall extending upwardly from the bottom support surface, and a diaphragm extending radially inward from the inner support wall. The diaphragm comprises an inner wall having an arcuate shape with a radius r1 and a central conical structure, where the diaphragm is in an initial as-formed position with the conical structure above the reference place. The diaphragm is configured to move from an initial as-formed position toward a second position when an internal pressure relative an external pressure exceeds a threshold value.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: February 20, 2024
    Assignee: CO2PAC LIMITED
    Inventors: Raymond A. Pritchett, Jr., Willie F. Hatcher, Michael T. Kelly
  • Patent number: 11897656
    Abstract: A plastic container comprises an upper portion including a finish defining an opening into the container, a lower portion including a base defining a standing surface, a sidewall extending between the upper portion and the lower portion, the sidewall defining a longitudinal axis, and at least one substantially transversely-oriented pressure panel located in the lower portion. The pressure panel is movable between an outwardly-inclined position and an inwardly-inclined position to compensate for a change of pressure inside the container. The standing surface defines a standing plane, and the entire pressure panel is located between the standing plane and the upper portion of the container when the pressure panel is in the outwardly-inclined position.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: February 13, 2024
    Assignee: CO2PAC LIMITED
    Inventors: David Melrose, Paul Kelley, John Denner, Gregory A. Trude
  • Publication number: 20240010410
    Abstract: A container having an inverted active cage generally includes an enclosed base portion, a body portion extending upwardly from the base portion, and a top portion with a finish extending upwardly from the body portion. The body portion further includes a central longitudinal axis, a periphery, a plurality of rigidified and non-active surfaces, and a network of pillars or channels. Unlike the prior art, each of the plurality of non-active surfaces is outwardly displaced with respect to the longitudinal axis, while each of the network of pillars or channels is inwardly displaced with respect to the longitudinal axis. The plurality of rigidified or non-active surfaces, together with the network of rigidified channels or pillars, are spaced about the periphery of the container in order to accommodate vacuum-induced volumetric shrinkage of the container resulting from a hot-filling, capping and cooling thereof.
    Type: Application
    Filed: July 5, 2023
    Publication date: January 11, 2024
    Applicant: CO2Pac Limited
    Inventors: David Murray MELROSE, Campbell John MELROSE-ALLEN
  • Publication number: 20230391532
    Abstract: Method for processing hot-filled plastic containers are provided. In some embodiments, the method may include hot-filling a plastic container, sealing the container, and conveying the sealed container, each with an inner annular wall and a push-up portion in a first position. In some embodiments, the method may further include creating a vacuum pressure in the hot-filled and sealed container and repositioning the push-up portion from the first position to a second position under a mechanical force.
    Type: Application
    Filed: August 21, 2023
    Publication date: December 7, 2023
    Applicant: CO2PAC Limited
    Inventors: David MELROSE, John DENNER, Paul KELLEY, Gregory TRUDE
  • Patent number: 11731823
    Abstract: Method for processing hot-filled plastic containers are provided. In some embodiments, the method may include hot-filling a plastic container, sealing the container, and conveying the sealed container, each with an inner annular wall and a push-up portion in a first position. In some embodiments, the method may further include creating a vacuum pressure in the hot-filled and sealed container and repositioning the push-up portion from the first position to a second position under a mechanical force.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: August 22, 2023
    Assignee: CO2PAC Limited
    Inventors: David Melrose, John Denner, Paul Kelley, Gregory Trude
  • Publication number: 20230166897
    Abstract: A plastic container comprises an upper portion including a finish defining an opening into the container, a lower portion including a base defining a standing surface, a sidewall extending between the upper portion and the lower portion, the sidewall defining a longitudinal axis, and at least one substantially transversely-oriented pressure panel located in the lower portion. The pressure panel is movable between an outwardly-inclined position and an inwardly-inclined position to compensate for a change of pressure inside the container. The standing surface defines a standing plane, and the entire pressure panel is located between the standing plane and the upper portion of the container when the pressure panel is in the outwardly-inclined position.
    Type: Application
    Filed: January 25, 2023
    Publication date: June 1, 2023
    Applicant: CO2PAC Limited
    Inventors: David MELROSE, John DENNER, Paul KELLEY, Gregory TRUDE
  • Publication number: 20230127553
    Abstract: In one embodiment, a method of processing a plastic container having a longitudinal axis is disclosed. The method includes: blow-molding a plastic container having an upper portion including a finish, a sidewall, a lower portion including a base defining a standing surface, and a substantially transversely-oriented pressure panel having an inner annular wall and a central push-up portion located in the base, wherein a base mold portion is displaced longitudinally with respect to first and second side mold portions to form the pressure panel set above the standing surface; introducing heated liquid contents into the plastic container with the pressure panel located in an outwardly-inclined position entirely between the standing surface and the upper portion; capping the plastic container; and, moving the pressure panel to an inwardly-inclined position entirely between the standing surface and the upper portion.
    Type: Application
    Filed: December 22, 2022
    Publication date: April 27, 2023
    Applicant: CO2PAC LIMITED
    Inventors: David Murray Melrose, John Denner, Paul Kelley, Gregory Trude
  • Publication number: 20220332558
    Abstract: In some embodiments, a sealing and pressure dosing apparatus may be provided. The sealing and pressure dosing apparatus may include a sealing machine having one or more of a driven turret, a sealing head, a pressure sealing member, and a pressure sealing chamber. The sealing and pressure dosing apparatus may also include a pressure dosing system which may be integrated with the sealing machine.
    Type: Application
    Filed: June 30, 2022
    Publication date: October 20, 2022
    Applicant: CO2 PAC LIMITED
    Inventor: David MELROSE
  • Publication number: 20220324630
    Abstract: Method for processing hot-filled plastic containers are provided. In some embodiments, the method may include hot-filling a plastic container, sealing the container, and conveying the sealed container, each with an inner annular wall and a push-up portion in a first position. In some embodiments, the method may further include creating a vacuum pressure in the hot-filled and sealed container and repositioning the push-up portion from the first position to a second position under a mechanical force.
    Type: Application
    Filed: June 29, 2022
    Publication date: October 13, 2022
    Applicant: CO2PAC Limited
    Inventors: David MELROSE, John DENNER, Paul KELLEY, Gregory TRUDE
  • Patent number: 11377287
    Abstract: Method for processing hot-filled plastic containers are provided. In some embodiments, the method may include hot-filling a plastic container, sealing the container, and conveying the sealed container, each with an inner annular wall and a push-up portion in a first position. In some embodiments, the method may further include creating a vacuum pressure in the hot-filled and sealed container and repositioning the push-up portion from the first position to a second position under a mechanical force.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: July 5, 2022
    Assignee: CO2PAC Limited
    Inventors: David Melrose, John Denner, Paul Kelley, Gregory Trude
  • Patent number: 11377286
    Abstract: A hot-fill PET container or bottle (10) filling with a liquid at an elevated temperature has a side wall (9) extending to a lower portion including a pressure panel (11) and a base (21) in its unfolded or pre-fill position. The panel (11) is transversely oriented and has a decoupling or hinge structure or element (13), an initiator portion (1) and control portion (5) of a steeply angled inverting conical section between 30 and 45 degrees. The control portion enables the inversion of the panel (11) into the container (10) to compensate for vacuum or reduced pressure induced within the container as the liquid cools down. The base (2) can also have a plurality of reinforcing ribs (3).
    Type: Grant
    Filed: April 27, 2019
    Date of Patent: July 5, 2022
    Assignee: CO2 PAC Limited
    Inventor: David Murray Melrose
  • Publication number: 20210053739
    Abstract: Method for processing hot-filled plastic containers are provided. In some embodiments, the method may include hot-filling a plastic container, sealing the container, and conveying the sealed container, each with an inner annular wall and a push-up portion in a first position. In some embodiments, the method may further include creating a vacuum pressure in the hot-filled and sealed container and repositioning the push-up portion from the first position to a second position under a mechanical force.
    Type: Application
    Filed: November 5, 2020
    Publication date: February 25, 2021
    Applicant: CO2PAC Limited
    Inventors: David MELROSE, John Denner, Paul Kelley, Gregory Trude
  • Patent number: 10836552
    Abstract: Method for processing hot-filled plastic containers are provided. In some embodiments, the method may include hot-filling a plastic container, sealing the container, and conveying the sealed container, each with an inner annular wall and a push-up portion in a first position. In some embodiments, the method may further include creating a vacuum pressure in the hot-filled and sealed container and repositioning the push-up portion from the first position to a second position under a mechanical force.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: November 17, 2020
    Assignee: CO2PAC Limited
    Inventors: David Melrose, John Denner, Paul Kelley, Gregory Trude
  • Publication number: 20200331740
    Abstract: In some embodiments, a sealing and pressure dosing apparatus may be provided. The sealing and pressure dosing apparatus may include a sealing machine having one or more of a driven turret, a sealing head, a pressure sealing member, and a pressure sealing chamber. The sealing and pressure dosing apparatus may also include a pressure dosing system which may be integrated with the sealing machine.
    Type: Application
    Filed: July 6, 2020
    Publication date: October 22, 2020
    Applicant: CO2 PAC Limited
    Inventor: David Melrose
  • Publication number: 20200307850
    Abstract: A plastic container comprises an upper portion including a finish defining an opening into the container, a lower portion including a base defining a standing surface, a sidewall extending between the upper portion and the lower portion, the sidewall defining a longitudinal axis, and at least one substantially transversely-oriented pressure panel located in the lower portion. The pressure panel is movable between an outwardly-inclined position and an inwardly-inclined position to compensate for a change of pressure inside the container. The standing surface defines a standing plane, and the entire pressure panel is located between the standing plane and the upper portion of the container when the pressure panel is in the outwardly-inclined position.
    Type: Application
    Filed: June 15, 2020
    Publication date: October 1, 2020
    Applicant: CO2PAC Limited
    Inventors: David MELROSE, Paul Kelley, John Denner, Gregory A. Trude
  • Publication number: 20200247601
    Abstract: In one embodiment, a method of processing a plastic container having a longitudinal axis is disclosed. The method includes: blow-molding a plastic container having an upper portion including a finish, a sidewall, a lower portion including a base defining a standing surface, and a substantially transversely oriented pressure panel having an inner annular wall and a central push-up portion located in the base, wherein a base mold portion is displaced longitudinally with respect to first and second side mold portions to form the pressure panel set above the standing surface; introducing heated liquid contents into the plastic container with the pressure panel located in an outwardly-inclined position entirely between the standing surface and the upper portion; capping the plastic container; and, moving the pressure panel to an inwardly-inclined position entirely between the standing surface and the upper portion.
    Type: Application
    Filed: April 1, 2019
    Publication date: August 6, 2020
    Applicant: CO2PAC Limited
    Inventors: David Murray MELROSE, John DENNER, Paul KELLEY, Gregory TRUDE
  • Patent number: 10683127
    Abstract: A plastic container comprises an upper portion including a finish defining an opening into the container, a lower portion including a base defining a standing surface, a sidewall extending between the upper portion and the lower portion, the sidewall defining a longitudinal axis, and at least one substantially transversely-oriented pressure panel located in the lower portion. The pressure panel is movable between an outwardly-inclined position and an inwardly-inclined position to compensate for a change of pressure inside the container. The standing surface defines a standing plane, and the entire pressure panel is located between the standing plane and the upper portion of the container when the pressure panel is in the outwardly-inclined position.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: June 16, 2020
    Assignee: CO2PAC Limited
    Inventors: David Melrose, Paul Kelley, John Denner, Gregory A. Trude
  • Patent number: 10661939
    Abstract: Exemplary hot-fillable plastic containers are disclosed. In some embodiments, the containers may include a threaded neck portion, a body portion, and a base portion including a standing surface and a movable element. In some embodiments, the moveable element may be arranged to be recessed either substantially above, or substantially below, the standing surface in an initial pre-filling position.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: May 26, 2020
    Assignee: CO2PAC Limited
    Inventors: David Murray Melrose, Paul Kelley, John Denner