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1. 发明授权

US4393769A Electrostatic clutch-operated printing mechanism 失效
标题翻译：静电离合器操作打印机构
公开(公告)号：US4393769A
公开(公告)日：1983-07-19
申请号：US221864
申请日：1980-12-31
申请人： Alfred J. Landon , William B. Pennebaker , Han C. Wang
发明人： Alfred J. Landon , William B. Pennebaker , Han C. Wang
IPC分类号： B41J9/40 , B41J9/44 , B41J23/04 , B41J23/16 , B41J9/10 , B41J9/32 , B41J9/36
CPC分类号： B41J9/40
摘要： An impact printing mechanism is disclosed having an electrostatic clutch assembly, including a rotatively mounted semiconductive coated drum and a conductive band wrapped around the circumference thereof. The printing mechanism includes a printing hammer and a print spring for actuating the printing hammer. When a print command is issued, a voltage is applied to the band to create a field between the band and the drum coating. An electrostatic force is therefore generated when the drum is rotating slowly or synchronous with the drum step motion. That motion will pull the band and compress the print spring. The potential energy stored in the spring is then ready to fire the hammer. A hammer firing command turns off the voltage pulse and discharges the field, releasing the electrostatic holding force instantaneously and firing the hammer by the compressed spring.
摘要翻译：公开了一种具有静电离合器组件的冲击打印机构，其包括旋转安装的半导体涂覆的滚筒和围绕其圆周缠绕的导电带。打印机构包括用于致动打印锤的打印锤和打印弹簧。当发出打印命令时，向带施加电压以在带和鼓涂层之间产生场。因此，当滚筒慢慢旋转或与滚筒步进运动同步时，产生静电力。该动作将拉动乐队并压缩打印弹簧。然后储存在弹簧中的潜在能量就可以开始锤击了。锤击命令关闭电压脉冲并释放场，瞬间释放静电保持力，并通过压缩弹簧击发锤。

2. 发明授权

US4236179A Versatile microsecond multiple framing camera 失效
标题翻译：多功能微秒多帧摄像机
公开(公告)号：US4236179A
公开(公告)日：1980-11-25
申请号：US53570
申请日：1979-06-29
申请人： Russell W. Dreyfus , Alfred J. Landon
发明人： Russell W. Dreyfus , Alfred J. Landon
IPC分类号： H04N5/232 , H04N7/18
CPC分类号： H04N5/232
摘要： A versatile microsecond multiple framing camera generates a switched beam of illumination derived from a laser and switched by an acousto-optic modulator. The illumination is focused on a subject, and illumination from the subject is caused to scan over a predetermined field by a mechanical or electromechanical scanner. Located in the field is an image recording device for recording the illumination directed over the field by the scanner. The image recording device, in one embodiment, includes a vidicon tube, for short term storage, and a video recorder for longer term storage. A video monitor may be driven from the video recorder. The versatility of the camera is exemplified by the ability to vary exposure times or frame rates by adjusting operator controls which drive the acousto-optic modulator and/or the electromechanical scanner. In other embodiments, the vidicon tube and video recorder can be replaced or supplemented by photographic film.
摘要翻译：通用微秒多帧摄像机产生从激光器导出并由声光调制器切换的切换照明光束。照明被聚焦在被摄体上，并且通过机械或机电扫描器使来自被摄体的照明在预定场上扫描。位于该领域中的是用于记录由扫描仪指向场的照明的图像记录装置。在一个实施例中，图像记录装置包括用于短期存储的视频管，以及用于长期存储的录像机。视频监视器可以从录像机驱动。相机的多功能性通过调整驱动声光调制器和/或机电扫描器的操作者控制来改变曝光时间或帧速率的能力被证明。在其他实施例中，可以用摄影胶片替换或补充摄像机管和录像机。

3. 发明授权

US4393967A Electrostatic clutch 失效
标题翻译：静电离合器
公开(公告)号：US4393967A
公开(公告)日：1983-07-19
申请号：US313717
申请日：1981-10-21
申请人： Jerome J. Cuomo , Alfred J. Landon , Han C. Wang
发明人： Jerome J. Cuomo , Alfred J. Landon , Han C. Wang
IPC分类号： B41J9/40 , H02N13/00 , F16D27/00 , B05D5/12 , B65H29/30
CPC分类号： H02N13/00 , B41J9/40
摘要： An electrostatic clutch operable by the Johnsen-Rahbek effect, which may be used to operate, e.g., a print hammer device, is described, said clutch comprising a rotatable drum and a band engagable therewith, wherein the engagable surface of the drum is a semiconductive surface prepared by sputtering or vapor depositing a layer of substantially pure silicon carbide onto a conductive substrate.
摘要翻译：描述了可由Johnsen-Rahbek效应操作的静电离合器，其可用于操作例如打印锤装置，所述离合器包括可旋转滚筒和与其可接合的带，其中滚筒的可接合表面是半导体通过溅射或气相沉积基本上纯的碳化硅层到导电基底上制备的表面。

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