AC corona to remove background from the imaging member of a magnetic
copier
    21.
    发明授权
    AC corona to remove background from the imaging member of a magnetic copier 失效
    AC电晕以从磁性复印机的成像构件去除背景

    公开(公告)号:US4216282A

    公开(公告)日:1980-08-05

    申请号:US771381

    申请日:1977-03-18

    IPC分类号: G03G19/00 G03G21/00 G11B5/004

    摘要: A process for reproducing graphic information wherein a magnetic image is formed in a premagnetized layer of acicular chromium dioxide by heating the chromium dioxide selectively to above its Curie point. Ferromagnetic toner particles are then applied uniformly to the chromium dioxide layer, so as to adhere only in the magnetized areas. The toner particles are electrostatically transferred to a substrate and fused into position. Alternating current coronas or other static neutralizing devices are used to neutralize unwanted charges on toner particles which would otherwise cause fuzzy images and unwanted background markings on the final copies.

    摘要翻译: 一种用于再现图形信息的过程,其中通过选择性地将二氧化铬加热到其居里点以上,在针状二氧化铬的预磁化层中形成磁性图像。 然后将铁磁调色剂颗粒均匀地施加到二氧化铬层上,以便仅粘附在磁化区域中。 将调色剂颗粒静电转移到基底并熔融到位。 交替使用的冠状物或其他静电中和装置用于中和调色剂颗粒上的不必要的电荷,否则会导致模糊图像和最终拷贝上的不需要的背景标记。

    Magnetic printing process and apparatus
    22.
    发明授权
    Magnetic printing process and apparatus 失效
    磁性印刷工艺和设备

    公开(公告)号:US4191961A

    公开(公告)日:1980-03-04

    申请号:US777241

    申请日:1977-03-15

    摘要: Magnetic printing process, and apparatus for carrying out same, comprising:(a) forming a magnetic image on a ferromagnetic material which is imposed on an electrically conductive support and subjecting the ferromagnetic material to the action of a static neutralizing means;(b) developing the magnetic image by decorating same with a ferromagnetic toner comprising a ferromagnetic component and a resin which substantially encapsulates the ferromagnetic component; and(c) transferring the developed image to a substrate.

    摘要翻译: 磁性印刷工艺及其执行装置,包括:(a)在强磁性材料上形成磁图像,强磁性材料施加在导电支架上,并使铁磁材料受到静电中和装置的作用; (b)通过用包含铁磁性成分的铁磁性调色剂和基本上封装铁磁性成分的树脂进行装饰来显影磁性图像; 和(c)将显影的图像转印到基底上。

    Blasting booster and methods
    23.
    发明授权
    Blasting booster and methods 失效
    爆破助推器和方法

    公开(公告)号:US4161142A

    公开(公告)日:1979-07-17

    申请号:US836714

    申请日:1977-09-26

    摘要: A blasting booster comprises a rigid tube filled with a mixture, by weight, of about: 60% to 80% ammonium nitrate prills ground through a 1/16" screen; 12% to 35% whole ammonium nitrate prills and 3% to 8% diesel oil. Preferably the mixture includes about 0.4% to 10% aluminum fuel and the weight ratio of ground to whole prills is about 4 to 1. In use the booster tube is plastic lined and is placed in the bottom of a bore hole which is filled with AN-FO or an appropriate blasting agent. A one-pound cast primer on top of the booster is detonated to initiate the booster and the AN-FO, whereby detonation velocities and pressures in excess of non-boosted AN-FO, for example, are achieved in the critical bottom three feet of the bore hole. Bore hole patterns, where the booster is used, are expanded over tighter patterns required for non-boosted AN-FO alone, and drilling costs are significantly reduced.

    摘要翻译: 爆破助力器包括一个刚性管,其中装有重量比约为60%至80%的硝酸铵颗粒的混合物,通过1/16“筛网研磨; 12%至35%的全硝酸铵颗粒和3%至8%的柴油。 优选地,混合物包括约0.4%至10%的铝燃料,并且地面与整块颗粒的重量比为约4比1。在使用中,增强管是塑料衬里并且放置在填充有AN的钻孔的底部 -FO或适当的爆破剂。 在增压器顶部的一磅重的浇注底漆被引爆以启动助力器和AN-FO,从而在临界底部的三英尺处实现爆震速度和超过非增压AN-FO的压力 钻孔。 使用助力器的钻孔图案在非增压AN-FO单独需要更严格的模式下扩展,钻井成本显着降低。

    AC Corona to remove background from the transfer member of a
thermomagnetic copier
    25.
    发明授权
    AC Corona to remove background from the transfer member of a thermomagnetic copier 失效
    AC电晕以从热磁复印机的转印部件去除背景

    公开(公告)号:US4329694A

    公开(公告)日:1982-05-11

    申请号:US87077

    申请日:1979-10-22

    IPC分类号: G03G19/00 G03G21/00 G11B9/00

    摘要: A process for reproducing graphic information wherein a magnetic image is formed in a premagnetized layer of acicular chromium dioxide by heating the chromium dioxide selectively to above its Curie point. Ferromagnetic toner particles are then applied uniformly to the chromium dioxide layer, so as to adhere only in the magnetized areas. The toner particles are electrostatically transferred to a substrate and fused into position. Alternating current coronas or other static neutralizing devices are used to neutralize unwanted charges on toner particles which would otherwise cause fuzzy images and unwanted background markings on the final copies.

    摘要翻译: 一种用于再现图形信息的过程,其中通过选择性地将二氧化铬加热到其居里点以上,在针状二氧化铬的预磁化层中形成磁性图像。 然后将铁磁调色剂颗粒均匀地施加到二氧化铬层上,以便仅粘附在磁化区域中。 将调色剂颗粒静电转移到基底并熔融到位。 交替使用的冠状物或其他静电中和装置用于中和调色剂颗粒上的不必要的电荷,否则会导致模糊图像和最终拷贝上的不需要的背景标记。

    Magnetic printing process and apparatus
    26.
    发明授权
    Magnetic printing process and apparatus 失效
    磁性印刷工艺和设备

    公开(公告)号:US4195303A

    公开(公告)日:1980-03-25

    申请号:US777242

    申请日:1977-03-15

    摘要: Magnetic printing process, and apparatus for carrying out same, comprising:(a) forming a magnetic image on a ferromagnetic material which is imposed on an electrically conductive support;(b) developing the magnetic image by decorating same with a ferromagnetic toner comprising a ferromagnetic component and a resin which substantially encapsulates the ferromagnetic component; and(c) transferring the developed image to a substrate.

    摘要翻译: 磁性印刷工艺及其执行装置,包括:(a)在施加在导电载体上的铁磁材料上形成磁图; (b)通过用包含铁磁性成分的铁磁性调色剂和基本上封装铁磁性成分的树脂进行装饰来显影磁性图像; 和(c)将显影的图像转印到基底上。