High performance cooling system
    11.
    发明授权

    公开(公告)号:US11787099B2

    公开(公告)日:2023-10-17

    申请号:US17536232

    申请日:2021-11-29

    Applicant: Addex, Inc.

    Abstract: The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of one or more enclosures with one or more respective cavities that directly receive a portion of cooling gas emanating from one or more associated cooling elements. Each enclosure includes a port containing a variable exhaust device and optional flow buffer, acting to maintain a pressure differential between the cavity and an adjacent inside volume of the molten film tube, adjustable to optimize molten film tube stability cooling element efficiency and spaced apart dimension between cooling elements. Additionally, at least one cooling element is provided, comprised of a divergent cooling element with a divergent cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube and providing an expelled cooling gas.

    CONTROLLED PRESSURE ENCLOSURE
    12.
    发明申请

    公开(公告)号:US20220126497A1

    公开(公告)日:2022-04-28

    申请号:US17568226

    申请日:2022-01-04

    Applicant: Addex, Inc.

    Abstract: The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of one or more enclosures with one or more respective cavities that directly receive a portion of cooling gas emanating from one or more associated cooling elements. Each enclosure includes a port containing a variable exhaust device and optional flow buffer, acting to maintain a pressure differential between the cavity and an adjacent inside volume of the molten film tube, adjustable to optimize molten film tube stability cooling element efficiency and spaced apart dimension between cooling elements. Significant increases in production speeds are achieved with improved film quality over an increased range of tubular film sizes, down to a minimum size which occurs when operating at zero internal to molten film tube pressure.

    High performance cooling system
    13.
    发明授权

    公开(公告)号:US11298865B2

    公开(公告)日:2022-04-12

    申请号:US15348640

    申请日:2016-11-10

    Applicant: Addex, Inc.

    Abstract: The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of one or more enclosures with one or more respective cavities that directly receive a portion of cooling gas emanating from one or more associated cooling elements. Each enclosure includes a port containing a variable exhaust device and optional flow buffer, acting to maintain a pressure differential between the cavity and an adjacent inside volume of the molten film tube, adjustable to optimize molten film tube stability cooling element efficiency and spaced apart dimension between cooling elements. Additionally, at least one cooling element is provided, comprised of a divergent cooling element with a divergent cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube and providing an expelled cooling gas.

    HIGH PERFORMANCE COOLING ELEMENT
    14.
    发明申请

    公开(公告)号:US20190275724A1

    公开(公告)日:2019-09-12

    申请号:US16422219

    申请日:2019-05-24

    Applicant: Addex, Inc.

    Abstract: The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process. Embodiments of the present disclosure provide a unidirectional cooling element having a unidirectional cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube. The unidirectional cooling element operably expels cooling gas in a path with the flow of the molten film tube toward an exit gap formed between the unidirectional cooling interface and the molten film tube. The minimum gap between the unidirectional cooling interface and the molten film tube occurs at the exit gap, and advantageously, the unidirectional cooling interface is provided with one or more compound angles to maximize stability and cooling efficiency.

    HIGH PERFORMANCE COOLING ELEMENT
    15.
    发明申请

    公开(公告)号:US20170203473A1

    公开(公告)日:2017-07-20

    申请号:US14997157

    申请日:2016-01-15

    Applicant: Addex, Inc.

    Abstract: The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of a divergent cooling element with a divergent cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube and providing an expelled cooling gas (i) in a path opposing the flow of the molten film tube toward a first exit gap and (ii) in a path with the flow of the molten film tube toward a second exit gap. A minimum gap between the divergent cooling interface and the molten film tube occurs at the first exit gap and/or the second exit gap. Advantageously, the divergent cooling interface is provided with one or more compound angles to maximize stability and cooling efficiency. Additionally, multiple cooling elements can preferably be arranged in a stackable configuration to achieve higher throughput rates. Operation is characterized by improved film holding forces without the presence of high noise levels or detrimental vibration, flutter, and drag. Additionally, employing simplified single air delivery channels, and a stackable design, significantly reduces complexity and manufacturing costs.

    Uniform distribution of cooling gas plenum

    公开(公告)号:US20250135702A1

    公开(公告)日:2025-05-01

    申请号:US18385145

    申请日:2023-10-30

    Applicant: Addex, Inc.

    Abstract: Embodiments of the present disclosure provides an air ring plenum. The air ring plenum includes an interior circumferential plenum opening. The air ring plenum further includes an inlet located on an exterior surface of the air ring plenum, the inlet includes a hollow passageway fluidly connected to the interior volume of the air ring plenum. The air ring plenum includes at least one divider plate, an upper interior surface of the air ring plenum and the divider plate defining a first upper channel circumscribed around the plenum opening, and a lower interior surface of the air plenum and the divider plate defining a second lower channel also circumscribed around the plenum opening.

    High performance cooling element
    17.
    发明授权

    公开(公告)号:US11919218B2

    公开(公告)日:2024-03-05

    申请号:US17530897

    申请日:2021-11-19

    Applicant: Addex, Inc.

    Abstract: The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of a divergent cooling element with a divergent cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube and providing an expelled cooling gas (i) in a path opposing the flow of the molten film tube toward a first exit gap and (ii) in a path with the flow of the molten film tube toward a second exit gap. A minimum gap between the divergent cooling interface and the molten film tube occurs at the first exit gap and/or the second exit gap. Advantageously, the divergent cooling interface is provided with one or more compound angles to maximize stability and cooling efficiency. Additionally, multiple cooling elements can preferably be arranged in a stackable configuration to achieve higher throughput rates. Operation is characterized by improved film holding forces without the presence of high noise levels or detrimental vibration, flutter, and drag. Additionally, employing simplified single air delivery channels, and a stackable design, significantly reduces complexity and manufacturing costs.

    Controlled pressure enclosure
    18.
    发明授权

    公开(公告)号:US11241817B2

    公开(公告)日:2022-02-08

    申请号:US16421662

    申请日:2019-05-24

    Applicant: Addex, Inc.

    Abstract: The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of one or more enclosures with one or more respective cavities that directly receive a portion of cooling gas emanating from one or more associated cooling elements. Each enclosure includes a port containing a variable exhaust device and optional flow buffer, acting to maintain a pressure differential between the cavity and an adjacent inside volume of the molten film tube, adjustable to optimize molten film tube stability cooling element efficiency and spaced apart dimension between cooling elements. Significant increases in production speeds are achieved with improved film quality over an increased range of tubular film sizes, down to a minimum size which occurs when operating at zero internal to molten film tube pressure.

    HIGH PERFORMANCE COOLING SYSTEM
    19.
    发明申请

    公开(公告)号:US20210370573A1

    公开(公告)日:2021-12-02

    申请号:US17397291

    申请日:2021-08-09

    Applicant: Addex, Inc.

    Abstract: The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of one or more enclosures with one or more respective cavities that directly receive a portion of cooling gas emanating from one or more associated cooling elements. Each enclosure includes a port containing a variable exhaust device and optional flow buffer, acting to maintain a pressure differential between the cavity and an adjacent inside volume of the molten film tube, adjustable to optimize molten film tube stability cooling element efficiency and spaced apart dimension between cooling elements. Additionally, at least one cooling element is provided, comprised of a divergent cooling element with a divergent cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube and providing an expelled cooling gas.

    High performance cooling element
    20.
    发明授权

    公开(公告)号:US11186026B2

    公开(公告)日:2021-11-30

    申请号:US16422197

    申请日:2019-05-24

    Applicant: Addex, Inc.

    Abstract: The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of a divergent cooling element with a divergent cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube and providing an expelled cooling gas (i) in a path opposing the flow of the molten film tube toward a first exit gap and (ii) in a path with the flow of the molten film tube toward a second exit gap. A minimum gap between the divergent cooling interface and the molten film tube occurs at the first exit gap and/or the second exit gap. Advantageously, the divergent cooling interface is provided with one or more compound angles to maximize stability and cooling efficiency. Additionally, multiple cooling elements can preferably be arranged in a stackable configuration to achieve higher throughput rates. Operation is characterized by improved film holding forces without the presence of high noise levels or detrimental vibration, flutter, and drag. Additionally, employing simplified single air delivery channels, and a stackable design, significantly reduces complexity and manufacturing costs.

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