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18 条记录 (耗时 0.022 秒)

    Removable supply and uptake assemblies for lithographic plate material
    2.
    发明授权
    Removable supply and uptake assemblies for lithographic plate material 失效
    平版印刷材料的可拆卸供应和吸收组件

    公开(公告)号：US5657692A

    公开(公告)日：1997-08-19

    申请号：US435094

    申请日：1995-05-04

    申请人： Edwin G. Theriault ,  James R. Moss ,  John P. Gardiner ,  Douglas D. Fuller

    发明人： Edwin G. Theriault ,  James R. Moss ,  John P. Gardiner ,  Douglas D. Fuller

    IPC分类号： B41C1/10 ,  B41F30/06 ,  B41J7/20

    CPC分类号： B41C1/1083 ,  B41F30/06

    摘要： A system for accepting and winding lithographic plate material around a cylinder adapted for rotation about a longitudinal axis includes supply and uptake spools and an alignment tool for use therewith. The cylinder is hollow, having an interior and an axial opening thereto, and includes means within its interior for selectably engaging supply and uptake spools. The engagement means are in fixed alignment with one another and are disposed within the cylinder so as to define an unobstructed winding path extending around the cylinder from the supply spool to the uptake spool. Plate material stored on the supply spool is extended around this path and affixed to the uptake spool. The tool includes means for releasably gripping supply and uptake spools, and alignment components for aligning the gripping means to at least one engagement means within the cylinder when the tool is introduced therein. The tool is removed from the cylinder following release of the spools to the engagement means.

    摘要翻译： 用于接受和卷绕围绕纵向轴线旋转的圆柱体的平版印刷板材料的系统包括供应和吸收卷轴以及与其一起使用的对准工具。 圆筒是中空的，具有内部和轴向开口，并且在其内部包括用于可选择地接合供应和吸收线轴的装置。 接合装置彼此固定对准并且设置在气缸内，以便限定围绕气缸从供给卷轴延伸到吸收卷轴的无阻碍的卷绕路径。 储存在供应卷轴上的板材在该路径周围延伸并固定到吸收卷筒。 该工具包括用于可释放地夹持供应和吸收线轴的装置，以及对准部件，用于在将工具引入其中时将夹持装置与筒体内的至少一个接合装置对准。 在将线轴释放到接合装置之后，将工具从气缸中移除。

    Plasma-jet imaging apparatus and method
    4.
    发明授权
    Plasma-jet imaging apparatus and method 失效
    等离子体喷射成像装置和方法

    公开(公告)号：US5272979A

    公开(公告)日：1993-12-28

    申请号：US859407

    申请日：1992-04-30

    申请人： Thomas E. Lewis ,  Richard A. Williams ,  John P. Gardiner ,  John F. Kline

    发明人： Thomas E. Lewis ,  Richard A. Williams ,  John P. Gardiner ,  John F. Kline

    IPC分类号： B41C1/10 ,  B41C1/05

    CPC分类号： B41C1/1033

    摘要： A method of and apparatus for imaging a lithographic plate having a printing surface by exposing the printing surface to plasma jet discharges between the plate and a plasma jet nozzle spaced close to the printing surface of the plate. These plasma jet discharges are sufficient to ablate or otherwise transform one or more layers of the printing surface, thereby changing the affinity of the printing surface for ink and/or water at the points thereof exposed to the discharges so as to produce image spots on the plate.

    摘要翻译： 一种用于使具有印刷表面的平版印刷板成像的方法和装置，其通过将印刷表面暴露于板和等离子体喷嘴之间的等离子体喷射放电，所述等离子体喷嘴在板的印刷表面附近间隔开。 这些等离子体喷射放电足以消融或以其它方式转化印刷表面的一个或多个层，从而改变印刷表面对于在曝光于放电处的点处的油墨和/或水的亲和性，从而在 盘子。

    Plasma-jet imaging method
    6.
    发明授权
    Plasma-jet imaging method 失效
    等离子体射流成像方法

    公开(公告)号：US5062364A

    公开(公告)日：1991-11-05

    申请号：US554089

    申请日：1990-07-17

    申请人： Thomas E. Lewis ,  Richard A. Williams ,  John P. Gardiner ,  John F. Kline

    发明人： Thomas E. Lewis ,  Richard A. Williams ,  John P. Gardiner ,  John F. Kline

    IPC分类号： B41C1/10

    CPC分类号： B41C1/1033

    摘要： A method of imaging a lithographic plate having a printing surface comprises exposing the printing surface to plasma jet discharges between the plate and a plasma jet nozzle spaced close to the printing surface of the plate. These plasma jet discharges are sufficient to remove a layer or layers of the plate to thereby change the affinity of the printing surface for ink and/or water at the points thereof exposed to the discharges, thereby producing image spots on the plate.

    摘要翻译： 对具有印刷表面的平版印刷板进行成像的方法包括将印刷表面暴露于板和等离子体喷嘴之间的等离子体喷射放电，该等离子体喷嘴与板的印刷表面相邻。 这些等离子体喷射放电足以去除板的一层或多层，从而改变了在暴露于放电的点处的油墨和/或水的印刷表面的亲合力，从而在板上产生图像斑点。

    Spark-discharge recording head with position sensor and control for imaging lithographic printing plates
    7.
    发明授权
    Spark-discharge recording head with position sensor and control for imaging lithographic printing plates 失效
    具有位置传感器的放电记录头和用于成像平版印刷版的控制

    公开(公告)号：US5121688A

    公开(公告)日：1992-06-16

    申请号：US553817

    申请日：1990-07-17

    申请人： Richard A. Williams ,  John P. Gardiner ,  Harry Roberts

    发明人： Richard A. Williams ,  John P. Gardiner ,  Harry Roberts

    IPC分类号： B41C1/14 ,  B41C1/10 ,  G01B13/12 ,  G01D15/08 ,  H04N1/032 ,  H04N1/23

    CPC分类号： H04N1/032 ,  B41C1/1033 ,  G01B13/12 ,  G01D15/08 ,  B41P2227/70 ,  B41P2235/23

    摘要： An imaging head for use in a spark-discharge recording apparatus, including a tracking system for monitoring and maintaining the head a fixed distance away from the surface of a recording blank. The tracking system preferably measures the distance between the head and the surface of the blank using a gas source oriented toward the blank's surface and a pressure sensor for measuring the pressure of the gas reflected therefrom. The signal produced by the pressure sensor indicates the size of the gap. The pressue sensor is coupled to a servo system that alters the position of the head to maintain a preselected gap distance.

    摘要翻译： 一种用于火花放电记录装置的成像头，包括用于监视和保持头部与记录坯料表面固定距离的跟踪系统。 跟踪系统优选使用朝向坯料表面定向的气体源来测量头部和坯料表面之间的距离，以及用于测量从其反射的气体的压力的压力传感器。 由压力传感器产生的信号表示间隙的大小。 压力传感器耦合到伺服系统，其改变头部的位置以保持预选的间隙距离。

    Automatic plate-loading cylinder for use with plate-imaging systems
    10.
    发明授权
    Automatic plate-loading cylinder for use with plate-imaging systems 失效
    用于板成像系统的自动装载筒

    公开(公告)号：US5355795A

    公开(公告)日：1994-10-18

    申请号：US112789

    申请日：1993-08-26

    申请人： James R. Moss ,  Frank G. Pensavecchia ,  John P. Gardiner

    发明人： James R. Moss ,  Frank G. Pensavecchia ,  John P. Gardiner

    IPC分类号： B41F7/02 ,  B41F27/12 ,  B41F30/06 ,  B41J7/20

    CPC分类号： B41F27/12 ,  B41F30/06 ,  B41P2227/70

    摘要： A winding assembly especially suitable for use in conjunction with a system for automated imaging of lithographic plate material, including on-press imaging systems. A feeder spool installed within a plate-support cylinder contains a rolled supply of plate material, which wraps around the cylinder and is received by an uptake spool, also located within the cylinder. The assembly is driven by the same power source used to rotate the plate-support cylinder, and maintains a strong tension along the wrapped material.

    摘要翻译： 特别适用于与用于平版印刷材料的自动成像的系统结合使用的卷绕组件，包括印刷机上成像系统。 安装在板支撑圆柱体内的进料线轴包含卷材供应的卷材，该材料卷绕在圆筒上并由也位于圆筒内的吸收卷轴接收。 组件由用于旋转板支撑筒的相同的动力源驱动，并且沿着包裹的材料保持强的张力。