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    Vacuum apparatus having transitional area for controlling the rate of application of vacuum in a through air drying papermaking process
    3.
    发明授权
    Vacuum apparatus having transitional area for controlling the rate of application of vacuum in a through air drying papermaking process 失效
    真空设备具有用于控制通风干燥造纸工艺中真空应用速率的过渡区域

    公开(公告)号：US5776311A

    公开(公告)日：1998-07-07

    申请号：US706917

    申请日：1996-09-03

    申请人： Paul Dennis Trokhan ,  Donald Eugene Ensign

    发明人： Paul Dennis Trokhan ,  Donald Eugene Ensign

    IPC分类号： D21F1/52 ,  D21F2/00 ,  D21F11/00 ,  D21F1/48

    CPC分类号： D21F2/00 ,  D21F1/52 ,  D21F11/006

    摘要： A papermaking vacuum apparatus having a web-facing surface adapted to support a papermaking belt and comprising a head, a body and at least one vacuum slot disposed in the head and defining an aperture on the web-facing surface. The vacuum slot is in fluid communication with the web-facing surface and extends from the web-facing surface to the body which is in further fluid communication with a vacuum source. The web-facing surface comprises a leading surface and a trailing surface. The leading surface has a transitional area juxtaposed with the aperture created by the vacuum slot. This transitional area has a predetermined Z-directional spacing from the papermaking belt, which Z-spacing continuously and gradually increases in the machine direction whereby the amount of vacuum pressure applied through the vacuum slot to the paper web gradually increases as the paper web travels in the machine direction over the slot.

    摘要翻译： 一种造纸真空装置，具有面向卷筒纸的表面，其适于支撑造纸带并且包括头部，主体和布置在头部中的至少一个真空槽，并且在面向卷筒纸的表面上限定孔。 真空槽与面向卷筒纸的表面流体连通，并且从卷筒纸面向表面延伸到与真空源进一步流体连通的主体。 卷筒纸表面包括前表面和后表面。 前导表面具有与由真空槽产生的孔并列的过渡区域。 该过渡区域与造纸带具有预定的Z方向间隔，Z-间距在机器方向上连续且逐渐增加，从而通过真空槽向纸幅施加的真空压力随着纸幅行进而逐渐增加 机器方向在插槽上。

    Vacuum apparatus having plurality of vacuum sections for controlling the rate of application of vacuum pressure in a through air drying papermaking process
    4.
    发明授权
    Vacuum apparatus having plurality of vacuum sections for controlling the rate of application of vacuum pressure in a through air drying papermaking process 失效
    真空装置具有多个真空部分，用于控制通风干燥造纸工艺中真空压力的施加速度

    公开(公告)号：US5741402A

    公开(公告)日：1998-04-21

    申请号：US706920

    申请日：1996-09-03

    申请人： Paul Dennis Trokhan ,  Donald Eugene Ensign

    发明人： Paul Dennis Trokhan ,  Donald Eugene Ensign

    IPC分类号： D21F1/52 ,  D21F2/00 ,  D21F11/00 ,  D21F1/48

    CPC分类号： D21F2/00 ,  D21F1/52 ,  D21F11/006

    摘要： A papermaking vacuum apparatus having a web-facing surface adapted to support a papermaking belt and comprising a head, a body and at least one vacuum slot disposed in the head and defining an aperture on the web-facing surface. The vacuum slot is in fluid communication with the web-facing surface and extends from the web-facing surface to the body which is in further fluid communication with a vacuum source. The vacuum apparatus comprises a plurality of sequenced vacuum sections successively spaced in the machine direction from a first vacuum section to a last vacuum section. Each vacuum section comprises at least one vacuum slot in fluid communication with the web-facing surface and defining an aperture thereon. Each vacuum section has a vacuum applied therethrough, this vacuum increasing in the machine direction between successive vacuum sections.

    摘要翻译： 一种造纸真空装置，具有面向卷筒纸的表面，其适于支撑造纸带并且包括头部，主体和布置在头部中的至少一个真空槽，并且在面向卷筒纸的表面上限定孔。 真空槽与面向卷筒纸的表面流体连通，并且从卷筒纸面向表面延伸到与真空源进一步流体连通的主体。 真空装置包括沿机器方向从第一真空部分到最后一个真空部分连续间隔的多个排序的真空部分。 每个真空部分包括至少一个与卷筒纸相对表面流体连通并且在其上限定孔的真空槽。 每个真空部分具有穿过其中的真空，该真空在相继的真空部分之间在机器方向上增加。

    Vacuum apparatus having flow management device for controlling the rate of application of vacuum pressure in a through air drying papermaking process
    5.
    发明授权
    Vacuum apparatus having flow management device for controlling the rate of application of vacuum pressure in a through air drying papermaking process 失效
    具有用于控制通风干燥造纸工艺中真空压力的施加速度的流量管理装置的真空装置

    公开(公告)号：US5718806A

    公开(公告)日：1998-02-17

    申请号：US706916

    申请日：1996-09-03

    申请人： Paul Dennis Trokhan ,  Donald Eugene Ensign ,  Peter Graves Ayers

    发明人： Paul Dennis Trokhan ,  Donald Eugene Ensign ,  Peter Graves Ayers

    IPC分类号： D21F1/52 ,  D21F2/00 ,  D21F11/00 ,  D21F1/48

    CPC分类号： D21F11/006 ,  D21F1/52 ,  D21F2/00

    摘要： A papermaking vacuum apparatus having a web-facing surface adapted to support a papermaking belt and comprising a head, a body and at least one vacuum slot disposed in the head and defining an aperture on the web-facing surface. The vacuum slot is in fluid communication with the web-facing surface and extends from the web-facing surface to the body which is in further fluid communication with a vacuum source. The vacuum apparatus has a flow management device facing said web-contacting surface of the papermaking belt and disposed such that the papermaking belt having the paper web thereupon travels between the flow management device and the web-facing surface of the head. The flow management device has an air flow resistance and controls the distribution of the air flow through the aperture on the web-facing surface such as to effectively increase in the machine direction the amount of vacuum pressure applied through the vacuum slot to the papermaking belt.

    摘要翻译： 一种造纸真空装置，具有面向卷筒纸的表面，其适于支撑造纸带并且包括头部，主体和布置在头部中的至少一个真空槽，并且在面向卷筒纸的表面上限定孔。 真空槽与面向卷筒纸的表面流体连通，并且从卷筒纸面向表面延伸到与真空源进一步流体连通的主体。 真空装置具有面向造纸带的纸幅接触表面的流动管理装置，并且设置成使得具有纸幅的造纸带随后在流动管理装置和头部的面向卷筒纸的表面之间行进。 流量管理装置具有气流阻力并且控制通过面向卷筒纸表面上的孔的空气流的分布，以便在机器方向上有效地增加通过真空槽施加到造纸带的真空压力的量。

    Variable wet flow resistance drying apparatus, and process of drying a web therewith
    6.
    发明授权
    Variable wet flow resistance drying apparatus, and process of drying a web therewith 有权
    可变湿流阻干燥装置，以及干燥纤维网的方法

    公开(公告)号：US06434856B1

    公开(公告)日：2002-08-20

    申请号：US09929589

    申请日：2001-08-14

    申请人： Donald Eugene Ensign ,  Michael Gomer Stelljes, Jr. ,  Paul Dennis Trokhan ,  Osman Polat

    发明人： Donald Eugene Ensign ,  Michael Gomer Stelljes, Jr. ,  Paul Dennis Trokhan ,  Osman Polat

    IPC分类号： F26B300

    CPC分类号： D21F11/145 ,  D21F5/18 ,  D21F5/184 ,  D21F11/14

    摘要： A micropore drying apparatus having a variable wet flow resistance. The flow resistance preferably decreases in the machine direction. The micropore drying apparatus may comprise a single integral unit having an decreasing wet flow resistance from the beginning to the end of the unit. Alternatively, the micropore drying apparatus may comprise a plurality of discrete units, each unit having a successively lesser flow resistance than that of the preceding unit. Alternatively, a hybrid arrangement may be used wherein each discrete unit has a successively decreasing flow resistance within that unit. The micropore drying apparatus may comprise one or more micropore drying media. The micropore drying media have pores which allow air flow therethrough. The pores are disposed in a grid, to form a field of pores. The decreasing flow resistance may preferably be provided by adjusting one or more of said pores, which affect the flow resistance through a single pore or through the entire field of the pores.

    摘要翻译： 一种具有可变湿流阻性的微孔干燥装置。 流动阻力优选在机器方向上减小。 微孔干燥装置可以包括具有从单元的开始到结束的减少的湿流阻力的单个整体单元。 或者，微孔干燥装置可以包括多个离散单元，每个单元具有比先前单元的流动阻力连续更小的流动阻力。 或者，可以使用混合布置，其中每个离散单元在该单元内具有连续降低的流动阻力。 微孔干燥装置可以包括一个或多个微孔干燥介质。 微孔干燥介质具有允许空气流过其中的孔。 孔被布置成格栅，形成一个孔隙。 可以优选通过调节一个或多个所述孔来提供降低的流动阻力，所述孔通过单个孔或通过整个孔的区域影响流动阻力。

    Noncircular drying apparatus
    9.
    发明授权
    Noncircular drying apparatus 失效
    非圆形干燥装置

    公开(公告)号：US06473990B1

    公开(公告)日：2002-11-05

    申请号：US09929607

    申请日：2001-08-14

    申请人： Paul Dennis Trokhan ,  Osman Polat ,  Donald Eugene Ensign ,  Michael Gomer Stelljes, Jr.

    发明人： Paul Dennis Trokhan ,  Osman Polat ,  Donald Eugene Ensign ,  Michael Gomer Stelljes, Jr.

    IPC分类号： F26B300

    CPC分类号： D21F5/18 ,  F26B13/101

    摘要： A micropore drying apparatus having a noncircular profile. The apparatus has a machine direction and dries a web thereon as the web or apparatus moves in the machine direction. The micropore drying apparatus comprises a micropore drying medium which has pores therethrough smaller than the interstitials in the web to be dried thereon. The micropore drying medium may be movable or stationary, as desired. The noncircular profile may have a major axis which is substantially vertically oriented. This arrangement provides the advantage that greater residence time for the web to be dried thereupon is provided, without increasing the machine direction footprint.

    摘要翻译： 具有非圆形轮廓的微孔干燥装置。 当纸幅或装置在机器方向上移动时，该装置具有机器方向并在其上干燥纸幅。 微孔干燥装置包括微孔干燥介质，其具有比要干燥的幅材上的间隙小的孔。 根据需要，微孔干燥介质可以是可移动的或静止的。 非圆形轮廓可以具有基本垂直取向的长轴。 这种布置提供了在不增加机器方向足迹的情况下提供用于干燥纸幅的更大停留时间的优点。